TW202005415A - 圖案形成麥克風陣列 - Google Patents
圖案形成麥克風陣列 Download PDFInfo
- Publication number
- TW202005415A TW202005415A TW108118668A TW108118668A TW202005415A TW 202005415 A TW202005415 A TW 202005415A TW 108118668 A TW108118668 A TW 108118668A TW 108118668 A TW108118668 A TW 108118668A TW 202005415 A TW202005415 A TW 202005415A
- Authority
- TW
- Taiwan
- Prior art keywords
- microphone
- group
- elements
- axis
- cluster
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 claims description 60
- 238000000034 method Methods 0.000 claims description 56
- 230000004044 response Effects 0.000 claims description 47
- 238000003491 array Methods 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
- 230000010354 integration Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 9
- 230000002457 bidirectional effect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 6
- 230000010076 replication Effects 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 241001310793 Podium Species 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000030808 detection of mechanical stimulus involved in sensory perception of sound Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
- H04R1/265—Spatial arrangements of separate transducers responsive to two or more frequency ranges of microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/04—Microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/003—Mems transducers or their use
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
- H04R2201/401—2D or 3D arrays of transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
- H04R2201/405—Non-uniform arrays of transducers or a plurality of uniform arrays with different transducer spacing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic
- H04R2430/21—Direction finding using differential microphone array [DMA]
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- General Health & Medical Sciences (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
實施例包含具有複數個麥克風元件之一麥克風陣列,該等麥克風元件包括:一第一組元件,其等沿一第一軸配置,其等包括間隔開一第一距離之至少兩個麥克風元件;一第二組元件,其等沿該第一軸配置,其等包括間隔開一第二較大距離之至少兩個麥克風元件,使得該第一組巢套於該第二組內;一第三組元件,其等沿正交於該第一軸之一第二軸配置,其等包括間隔開該第二距離之至少兩個麥克風元件;及一第四組元件,其等沿該第二軸巢套於該第三組內,其等包括間隔開該第一距離之至少兩個麥克風元件,其中各組包含間隔開該指定距離之一第一集群之麥克風元件及一第二集群之麥克風元件。
Description
本申請案大體上係關於麥克風陣列。特定言之,本申請案係關於一種可組態以形成一或多個期望極性圖案之麥克風陣列。
一般而言,麥克風具有各種尺寸、形狀因數、安裝選項及佈線選項以適應一給定應用之需要。存在若干不同類型之麥克風及相關轉換器,諸如(例如)動態、晶體、電容器(condenser)/電容器(capacitor)(外部偏置及駐極體)、微機電系統(「MEMS」)等,各取決於應用具有其優點及缺點。不同麥克風可經設計以產生不同極性響應圖案,包含(例如)全向、心形、半心形、超級心形、超心形及雙向。針對一特定麥克風(或包含於其中之麥克風匣)所選擇之極性圖案可取決於(例如)音訊源所在之位置、排除非所要雜訊之期望及/或其他考量。
在會議環境(諸如會議室、視訊會議設置及其類似者)中,一或多個麥克風用於自多個音訊源捕獲聲音。例如,音訊源可包含室內人類揚聲器,且在一些情況下,用於播放自不在房間中之人類揚聲器接收之音訊的揚聲器。所捕獲之聲音可通過環境中之揚聲器、一電視廣播、一網路廣播、電話等傳播至一觀眾。麥克風之類型及其等在一特定會議環境中之放置可取決於音訊源之位置、揚聲器、實體空間要求、美學、房間佈局及/或其他考量。例如,在一些環境中,麥克風可放置於音訊源附近之一桌子或講台上。在其他環境中,例如,麥克風可安裝於頭頂以捕獲來自整個房間之聲音。
一些現有會議系統利用可定位於一表面(例如,一桌子)上或一表面中之邊界麥克風及按鈕麥克風。此等麥克風通常包含多個匣,使得麥克風可具有多個獨立極性圖案以捕獲來自多個音訊源(例如,坐於一桌子之不同側處之人類揚聲器)之聲音。其他此等麥克風可包含多個匣,使得可藉由適當地處理來自各匣之音訊信號來形成各種極性圖案,因此消除實體地交換匣以獲得一不同極性圖案之需要。對於此等類型之麥克風,雖然將多個匣共同定位於麥克風內係理想的,使得各匣在相同時刻偵測環境中之聲音,然而,實體上不可能如此。因而,此等類型之麥克風可能不均勻地形成所期望之極性圖案且可能歸因於頻率響應不規則性以及匣內及匣之間的干擾及反射而不能理想地捕獲聲音。
在大多數會議環境中,期望一麥克風具有一環形極性圖案,其在麥克風之平面中係全向的,在垂直於該平面之軸中具有一零點。例如,定位於一會議桌上之一環形麥克風可經組態以偵測沿桌子之平面之所有方向上之聲音,但最小化麥克風上方之聲音之偵測,例如,在指向天花板及/或遠離桌子之方向上。然而,具有環形極性圖案之現有麥克風可能在實體上較大,具有一高自雜訊,需要複雜處理,及/或在一全頻率範圍(例如,100Hz至10kHz)上具有不一致極性圖案。
微機電系統(「MEMS」)麥克風或具有一MEMS元件作為核心轉換器之麥克風歸因於其等小封裝尺寸(例如,允許一整體較低輪廓裝置)及高效能特性(例如,高信雜比(「SNR」)、低功耗、良好靈敏度等)而變得越來越流行。另外,MEMS麥克風大體上比(例如)在許多現有邊界麥克風中發現之駐極體或電容式麥克風匣以一更低成本更容易組裝及可用。然而,歸因於MEMS麥克風封裝之實體約束,一習知MEMS麥克風之極性圖案固有地係全向,其意謂麥克風對來自任何及所有方向之聲音同樣敏感,而不管麥克風之定向如何。特別對於會議環境而言,此可能不太理想。
用於使用MEMS麥克風獲得方向性之一種現有解決方案包含將多個麥克風放置於一陣列組態中及應用適當波束形成技術(例如,信號處理)以產生一所期望方向響應,或對來自一或多個特定方向之聲音比來自其他方向之聲音更敏感之一波束圖案。取決於麥克風相對於彼此之放置及聲波之到達方向,此等麥克風陣列可具有不同組態及頻率響應。例如,一寬邊麥克風陣列包含垂直於聲音到達之較佳方向而配置之一行麥克風。藉由簡單地將所得麥克風信號相加在一起來獲得此等陣列之輸出,因此產生一平坦及軸上響應。
作為另一實例,一端射陣列包含與所期望之聲音傳播方向成直列式配置之多個麥克風。在一差分端射陣列中,例如,由陣列中之前麥克風(即,藉由軸上傳播之聲音到達之第一麥克風)捕獲之信號與由陣列中之後麥克風(即,相對於前麥克風定位)捕獲之信號之一反轉及延遲版本相加以產生心形、超級心形或超心形拾音圖案。在此等情況下,來自陣列後部之聲音被大大或完全衰減,而來自陣列前部之聲音幾乎沒有或無衰減。一差分端射陣列之頻率響應係非平坦,因此通常將一均衡濾波器應用於差分波束形成演算法之輸出以使響應平坦化。雖然MEMS麥克風端射陣列目前正在使用,明確言之在手機及聽力保健行業,但現有產品不提供會議平台所需之高效能特性(例如,最大信雜比(SNR)、平面方向拾音、寬頻音訊涵蓋等)。
據此,仍需一種能夠形成一或多個方向極性圖案之低輪廓、高效能麥克風陣列,該等極性圖案可與非所要環境聲音隔離,以便提供適於會議應用之完整、自然發聲之語音拾音。
本發明意欲藉由提供一麥克風陣列來解決上文所提及及其他問題,該麥克風陣列經設計以提供(1)至少一個線性麥克風陣列,其包括巢套於一或多個其他組內之一或多組麥克風元件,各組包含間隔開經選擇以涵蓋一所期望操作頻帶之一距離的至少兩個麥克風;(2)一波束形成器,其經組態以產生具有一所期望方向極性圖案(例如,環形、心形等)之線性陣列之一組合輸出信號;及(3)適於會議環境之高效能特性,諸如(例如)一高度方向極性圖案、高信雜比(SNR)、寬頻音訊涵蓋等。
例如,一個實施例包含具有複數個麥克風元件之一麥克風陣列,該麥克風陣列包括:一第一組元件,其等沿一第一軸配置且包括彼此間隔開一第一距離之至少兩個麥克風元件;及一第二組元件,其等沿該第一軸配置且包括彼此間隔開大於該第一距離之一第二距離的至少兩個麥克風元件,使得該第一組巢套於該第二組內,其中該第一距離經選擇用於在一第一頻帶中之最佳麥克風操作,且該第二距離經選擇用於在低於該第一頻帶之一第二頻帶中之最佳麥克風操作。
另一實例實施例包含組裝一麥克風陣列之一方法,該方法包括:沿一第一軸形成一第一組麥克風元件,該第一組包含彼此間隔開一第一距離之至少兩個麥克風元件;沿該第一軸形成一第二組麥克風元件,該第二組包含彼此間隔開大於該第一距離之一第二距離的至少兩個麥克風元件,使得該第一組巢套於該第二組內;及將各麥克風元件電耦合至至少一個處理器用於處理由該等麥克風元件捕獲之音訊信號,其中該第一距離經選擇用於在一第一頻帶中之最佳麥克風操作,且該第二距離經選擇用於在低於該第一頻帶之一第二頻帶中之最佳麥克風操作。
例示性實施例亦包含一麥克風系統,其包括:一麥克風陣列,其包含耦合至一支撐件之複數個麥克風元件,該複數個麥克風元件包括沿該支撐件之一第一軸配置之第一組元件及第二組元件,該第一組巢套於該第二組內,其中該第一組包含彼此間隔開一第一距離之至少兩個麥克風元件,該第一距離經選擇以組態該第一組用於在一第一頻帶中之最佳麥克風操作,且該第二組包含彼此間隔開大於該第一距離之一第二距離的至少兩個麥克風元件,該第二距離經選擇以組態該第二組用於在低於該第一頻帶之一第二頻帶中之最佳麥克風操作;一記憶體,其經組態以儲存用於處理由該複數個麥克風元件捕獲之音訊信號並基於其產生一輸出信號之程式碼;及至少一個處理器,其與該記憶體及該麥克風陣列通信,該至少一個處理器經組態以回應於自該麥克風陣列接收音訊信號而執行該程式碼,其中該程式碼經組態以:自該麥克風陣列之各麥克風元件接收音訊信號;對於沿該第一軸之各組元件,組合該組中該等麥克風之該等音訊信號以產生具有一方向極性圖案之一組合輸出信號;且組合該第一組及該第二組之該等組合輸出信號以產生該第一軸上所有該等麥克風元件之一最終輸出信號。
另一例示性實施例包含由一或多個處理器執行以產生用於一麥克風陣列之一輸出信號之一方法,該麥克風陣列包括耦合至一支撐件之複數個麥克風元件。該方法包括:自該複數個麥克風元件接收音訊信號,該複數個麥克風元件包括沿該支撐件之一第一軸配置之第一組元件及第二組元件,該第一組巢套於該第二組內,其中該第一組包含彼此間隔開一第一距離之至少兩個麥克風元件,該第一距離經選擇以組態該第一組用於在一第一頻帶中之最佳麥克風操作,且該第二組包含彼此間隔開大於該第一距離之一第二距離的至少兩個麥克風元件,該第二距離經選擇以組態該第二組用於在低於該第一頻帶之一第二頻帶中之最佳麥克風操作;對於沿該第一軸之各組元件,組合該組中該等麥克風元件之該等音訊信號以產生具有一方向極性圖案之一組合輸出信號;及組合該第一組及該第二組之該等組合輸出信號以產生該第一軸上所有麥克風元件之一最終輸出信號。
將自以下[實施方式]及附圖明白且更全面地理解此等及其他實施例及各種置換及態樣,該等[實施方式]及附圖闡述指示本發明原理可用於其中之各種方式之繪示性實施例。
以下描述根據其原理描述、繪示及舉例說明本發明之一或多個特定實施例。提供本說明書並非將本發明限制於本文中所描述之實施例,而是以此一方式解釋及教導本發明之原理以使得一般技術者能夠理解此等原理,且根據該理解能夠將其等應用於不僅實踐本文中所描述之實施例,而且應用於根據此等原理可能想到之其他實施例。本發明之範疇意欲涵蓋可在字面上或在等同原則下落於隨附申請專利範圍之範疇內之所有此等實施例。
應注意,在描述及圖式中,相同或實質上類似元件可使用相同元件符號標記。然而,有時此等元件可使用不同數字標記,諸如,例如,在其中此標記有助於一更清楚描述之情況下。另外,本文中所闡述之圖式並不一定按比例繪製,且在一些情況下,可誇大比例以更清楚地描繪某些特徵。此等標記及圖式實踐並不一定意謂一潛在實質性目的。如上文所述,本說明書意欲作為一整體且根據本文種所教導且一般技術者所理解之本發明之原理來解釋。
本文提供用於一高效能麥克風之系統及方法,該麥克風包括至少一個線性陣列,其具有間隔開指定距離且以一巢套組態配置之多對(或組)麥克風元件以達成所期望操作頻帶之涵蓋、一高信雜比(SNR)及一方向極性圖案。例示性實施例亦包含具有至少兩個正交線性陣列之一麥克風,該等正交線性陣列具有一共用中心且在各軸上對稱放置麥克風元件以產生一平面方向拾音圖案。實施例進一步包含線性陣列,其中該等麥克風對(或組)之至少一者包括間隔開集群之兩個或更多個麥克風元件以產生具有一經改良SNR之一更高靈敏度之麥克風。在較佳實施例中,麥克風元件係MEMS轉換器或其他全向麥克風。此等及其他陣列形成特徵在本文中更詳細地描述,特別係關於圖1至圖4。
實施例亦包含一或多個波束形成器用於組合一給定軸上之各組麥克風元件之極性圖案且接著使各組之組合輸出相加以獲得具有一方向極性圖案(諸如,例如,心形等)之一最終輸出。在正交線性陣列之情況下,波束形成器可組合各軸之最終輸出以達成平面方向拾音(諸如,例如,環形等)。在一些實施例中,一或多個波束形成器使用交叉濾波以將各組麥克風元件隔離至其最佳頻帶(或範圍)且接著將各組之輸出相加或縫合在一起以獲得涵蓋所有或大多數可聽帶寬(例如,20Hz至20kHz)之一所期望頻率響應且具有比(例如)個別麥克風元件之SNR更高之一SNR。此等及其他波束形成技術在本文中更詳細地描述,特別係關於圖5至圖8。
圖1繪示根據實施例之一例示性麥克風100,其包括可以各種頻率偵測來自一或多個音訊源之聲音的一麥克風陣列。麥克風100可用於一會議環境中,諸如(例如)一會議室、一會議室或其中音訊源包含一或多個人類揚聲器之其他會議室。在環境中可存在可能不期望之其他聲音,諸如來自通風、其他人、音訊/視訊設備、電子裝置等之雜訊。在一典型情況下,音訊源可坐於一桌子處之椅子上,然音訊源之其他組態及放置係可預期且係可行,包含(例如)在房間周圍移動之音訊源。麥克風100可放置於一桌子、講台、桌面等上以便偵測及捕獲來自音訊源之聲音,諸如人類揚聲器說出之語音。
麥克風100之麥克風陣列包括多個麥克風元件102a、102b、104a、104b、106a、106b,其等可形成多個拾音圖案用於最佳地偵測及捕獲來自所述音訊源之聲音。在圖1中,麥克風元件102a、102b、104a、104b、106a、106b大體上沿麥克風100之一長度以一線性方式配置。在實施例中,麥克風元件102a、102b、104a、104b、106a、106b可沿麥克風100之一共同軸(諸如(例如)一第一軸108)安置。在所繪示之實施例中,第一軸108與麥克風100之一x軸重合,該x軸穿過或在一共同中心點(或中點)處與麥克風100之一y軸(例如,第二軸110)相交。在其他情況下,第一軸108可平行於x軸且垂直地偏離麥克風100之中心點(例如,在中心上方或下方)。在其他情況下,第一軸108可相對於x軸及y軸成角度以便在其等之間形成一對角線(參見(例如)圖3)。在一些情況下,麥克風陣列包含沿麥克風100之一y軸(例如,第二軸110)而非第一軸108配置之麥克風元件(未展示)。
儘管圖1展示六個麥克風元件102a、102b、104a、104b、106a、106b,然其他數目(例如,更大或更小)個麥克風元件係可行的且可想到,例如,如圖3及圖4中所展示。可由麥克風100形成之極性圖案可包含全向、心形、半心形、超級心形、超心形、雙向及/或環形。在一些實施例中,麥克風100之麥克風元件102a、102b、104a、104b、106a、106b之各者可為具有一固有全向極性圖案之一MEMS (微機電系統)轉換器。在其他實施例中,麥克風元件102a、102b、104a、104b、106a、106b可具有其他極性圖案,可為任何其他類型之全向麥克風,及/或可為電容式麥克風、動態麥克風、壓電麥克風等。在其他實施例中,本文中所描述之配置及/或處理技術可應用於包括其中期望方向性之全向轉換器或感測器(諸如,例如,聲納陣列、射頻應用、震測裝置等)的其他類型之陣列。
麥克風100中之麥克風元件102a、102b、104a、104b、106a、106b之各者可偵測聲音並將聲音轉換成一音訊信號。在一些情況下,音訊信號可為一數位音訊輸出。對於其他類型之麥克風元件,音訊信號可為一類比音訊輸出,且麥克風100之組件(諸如類比至數位轉換器、處理器及/或其他組件)可處理類比音訊信號以最終產生一或多個數位音訊輸出信號。在一些實施例中,數位音訊輸出信號可符合用於通過乙太網傳輸音訊之Dante標準,或可符合另一標準。在某些實施例中,一或多個拾音圖案可由麥克風100之處理器由麥克風元件102a、102b、104a、104b、106a、106b之音訊信號形成,且處理器可產生對應於拾音圖案之各者的一數位音訊輸出信號。在其他實施例中,麥克風100之麥克風元件102a、102b、104a、104b、106a、106b可輸出類比音訊信號且麥克風100外部之其他組件及裝置(例如,處理器、混頻器、記錄器、放大器等)可處理類比音訊信號。
麥克風100可進一步包含一支撐件112 (諸如,例如,一基板、印刷電路板、方塊架等)用於支撐麥克風元件102a、102b、104a、104b、106a、106b。支撐件112可具有任何尺寸或形狀,包含(例如)一矩形(例如,圖1)、方形(例如,圖3)、圓形(例如,圖4)、六邊形等。在一些情況下,支撐件112可經定尺寸及定形狀以滿足一預先存在之裝置外殼之約束及/或達成所期望之效能特性(例如,選擇操作頻帶、高SNR等)。例如,麥克風陣列之一最大寬度及/或長度可由一裝置外殼之總寬度判定。
在實施例中,麥克風元件102a、102b、104a、104b、106a、106b之各者機械地及/或電耦合至支撐件112。例如,在一PCB之情況下,麥克風元件102a、102b、104a、104b、106a、106b可電耦合至支撐112,且PCB/支撐件112可電耦合至一或多個處理器或其他電子裝置用於接收及處理由麥克風元件102a、102b、104a、104b、106a、106b捕獲之音訊信號。在一些實施例中,麥克風元件102a、102b、104a、104b、106a、106b嵌入或實體上定位於支撐件112上。在其他實施例中,麥克風元件102a、102b、104a、104b、106a、106b可使用(例如)分別耦合於麥克風元件102a、102b、104a、104b、106a、106b與支撐件112之間的複數個導線自支撐件112懸置(例如,懸於下方)。在其他實施例中,麥克風100之麥克風元件102a、102b、104a、104b、106a、106b之各者可不彼此實體連接或為一特定支撐件,而是可無線連接至一處理器或音訊接收器以便形成麥克風之一分佈式網路。在此等情況下,例如,麥克風元件102a、102b、104a、104b、106a、106b可個別配置於會議環境或桌子內之一或多個表面上或自其懸置。
在圖1中,麥克風元件102a、102b、104a、104b、106a、106b配置於支撐件112之相同平面中及相同表面或側上(例如,一前表面或頂表面)。在其他實施例中,麥克風100亦包含配置於支撐件112之一相對側或表面(例如,後表面或底表面)上之一或多個麥克風(未展示)(參見(例如)圖4)以便增加包含於麥克風陣列中之麥克風元件之總數目及/或使麥克風100能夠涵蓋更多頻帶。
在一些實施例中,麥克風100包括沿麥克風100之一或多個其他軸配置之額外麥克風元件(未展示)(參見(例如)圖3)。在此等情況下,其他軸(如同第二軸110)(例如)可在麥克風100之中心或中點處與第一軸108相交且可與第一軸108共同位於相同平面中(參見(例如)圖3及圖4)。另外,在具有一共用中心之此等其他軸上放置額外麥克風元件可實現或增強達成麥克風100之輸出之平面方向性之能力,如本文中所描述。
根據實施例,麥克風100之麥克風元件102a、102b、104a、104b、106a、106b可以由各種組或群組之麥克風元件組成之一巢套組態配置。此組態在圖2中進一步繪示,其描繪包括圖1中所展示之麥克風元件102a、102b、104a、104b、106a、106b之一麥克風陣列200。如圖2中所展示,一第一組102 (「組1」)包含彼此間隔開一第一距離d1之麥克風元件102a及102b,第一距離d1係三個組之最小或最近距離;一第二組104 (「組2」)包含彼此間隔開一第二距離d2之麥克風元件104a及104b,第二距離d2大於第一距離或為三個組之中間或中間距離;及一第三組106 (「組3」)包含彼此間隔開一第三距離d3之麥克風元件106a及106b,第三距離d3大於第二距離或為三個組之最大或最遠距離。巢套組態可藉由將組3之麥克風元件106a、106b放置於麥克風陣列200之外端處,將組2之麥克風元件104a、104b放置或巢套於組3之麥克風元件106a、106b內,且將組1之麥克風元件102a、102b放置或巢套於組2之麥克風元件104a、104b內來達成。儘管圖1及圖2中展示三個巢套群組,然其他數目個巢套群組(及麥克風元件)係可行的且可想到(例如,如圖3及圖4中所展示)。例如,巢套群組之確切數目可取決於麥克風陣列200之所期望操作頻帶數目及/或一裝置外殼之實體約束。
根據實施例,可選擇一給定組102、104或106內之各自麥克風元件之間的距離以最佳涵蓋一所期望頻帶或範圍(本文中亦指稱「操作頻帶」)。特定言之,組1 (包含麥克風元件102a、102b)可經組態以涵蓋一第一或更高頻帶,組2 (包含麥克風元件104a、104b)可經組態以涵蓋一第二或中間頻帶(或範圍),且組3 (包含麥克風元件106a、106b)可經組態以涵蓋一第三或更低頻帶(或範圍)。在一些情況下,可選擇中間組2中之元件之間的間隔及因此藉此所提供之頻帶涵蓋以橋接由組1涵蓋之高頻帶與由組3涵蓋之低頻帶之間的間隙及/或使麥克風陣列輸出之一雜訊位準保持低。在實施例中,可利用適當波束形成技術來組合不同組1、2及3之輸出,使得整個麥克風100達成一所期望頻率響應,包含(例如)較低雜訊特性、較高麥克風靈敏度及離散頻帶之涵蓋,如本文更詳細所描述。
在所繪示之實施例中,巢套群組102、104、106之各者分別包含至少一個前麥克風元件102a、104a或106a及至少一個後麥克風元件102b、104b或106b,其等以一線性端射陣列配置。即,各組中之麥克風元件與軸上聲音傳播之方向成直線配置,使得聲音在到達對應後麥克風元件102b、104b或106B之前到達前麥克風元件102a、104a或106a。歸因於此線性組態,由組1、2及3之各者中之不同麥克風元件拾音之聲音可僅在到達時間方面不同。在實施例中,可將適當波束形成技術應用於麥克風元件102a、102b、104a、104b、106a、106b,使得巢套組1、2、3之各者有效地作為具有一所期望方向拾音圖案及頻率響應特性之獨立麥克風陣列操作,如本文中更詳細所描述(參見(例如)圖5至圖7)。在一些實施例中,「前」及「後」指定可由處理器程式化分配,其取決於麥克風100之設計考量。在一個實例實施例中,處理器可將元件102a、104a、106a之「前」定向翻轉至「後」且將元件102b、104b、106b之「後」定向翻轉至「前」,且同時代表兩種組態,因此在兩個輸出通道上產生兩個心形,一個具有自另一個旋轉180度之一軸上定向。
在圖1及圖2中,巢套群組102、104、106之各者確切地包含兩個麥克風元件。在其他實施例中,例如,如圖3及圖4中所展示,巢套群組之至少一者包含間隔開指定距離(例如,d1、d2或d3)之兩個集群之麥克風,而非圖1及2中所展示之個別麥克風元件。在此等情況下,各集群包含彼此相鄰或非常緊密接近定位之兩個或更多個麥克風元件。在實施例中,可使用適當波束形成技術將由各集群內之麥克風元件捕獲之音訊信號加在一起,使得集群有效地作為具有增強SNR特性之一單一更高靈敏度麥克風操作,如本文中更詳細地所描述。
現參考圖3,所展示係根據實施例之一例示性麥克風300,其包括分別沿巢套對302、304、306沿麥克風300之一第一軸308 (例如,x軸)配置之複數個麥克風集群302a、302b、304a、304b、306a、306b。集群302a、302b、304a、304b、306a、306b之各者包含彼此緊密接近配置之複數個麥克風元件310。如所展示,集群302a、302b、304a、304b、306a、306b之各者內之麥克風元件310亦可繞第一軸308對稱地配置。麥克風元件310可電及/或機械地耦合至一支撐件311 (例如,一框架、一PCB、一基板等),其大體上界定麥克風300之一整體尺寸及形狀(此處經展示為一方形)。在實施例中,麥克風元件310可為MEMS轉換器、其他類型之全向麥克風、動態或電容式麥克風、其他類型之全向轉換器等。
儘管圖3展示兩個或四個麥克風元件之集群,然一給定集群之其他數目(包含(例如)奇數)個麥克風元件系可行的且可想到。放置于集群302a、302b、304a、304b、306a、306b之各者中之麥克風元件310之確切數目可取決於(例如)空間約束、成本、效能折衷及/或麥克風陣列之一給定頻帶所期望之信號增強量。作為一實例,四個麥克風元件之集群可較佳用於較低頻帶,其等放置於其中空間充足之麥克風陣列之外邊緣上,而兩個麥克風元件之集群可較佳用於較高頻帶,其等放置成朝向其中空間有限之麥克風陣列之中心。
巢套對302、304、306 (本文中亦指稱一「集群對」)之各者包含一第一或前集群302a、304a或306a及一複製或後集群302b、304b或306b,其在本文中之麥克風元件310之數目(例如,2、4等)及配置(例如,間隔、對稱性等)方面分別與對應第一集群302a、304a或306a相同。進一步言之,在集群對302、304、306之各者內,複製集群302b、304b或306b可與對應第一集群302a、304a或306a間隔開一指定距離以便達成一選定頻帶內之最佳麥克風操作,類似於圖2之組1、2、3。例如,在一個實施例中,集群302a、302b、304a、304b及306a、306b分別間隔開距離d1、d2及d3,使得第一集群對302形成經組態以涵蓋一較高頻帶之一麥克風陣列,第二集群對304形成經組態以涵蓋一中間頻帶之一麥克風陣列,且第三集群對306形成經組態以涵蓋一較低頻帶之一麥克風陣列。
群集對302、304、306可以一巢套組態配置,類似於圖2中所展示之巢套組態。在所繪示之實施例中,麥克風300包含:一第一集群對302,其包括間隔開一第一或最小距離之麥克風集群302a及302b;一第二集群對304,其包括間隔開一第二或中間距離之麥克風集群304a及304b;及一第三集群對306,其包括間隔開一第三或最大距離之麥克風集群306a及306b。可藉由將第三集群對306之麥克風集群306a、306b放置於第一軸308之外邊緣上,將第二集群對304之麥克風集群304a、304b放置或巢套於第三集群對306之集群306a、306b之間,及將第一集群對302之麥克風集群302a、302b放置或巢套於第二集群對304之集群304a、304b之間來形成巢套組態。儘管圖3中展示沿第一軸308之三個集群對,然其他數目(例如,更少或更多)個集群對係可行的且可想到。
在一些實施例中,麥克風300進一步包含沿正交於第一軸308之麥克風300之一第二軸314配置之一第二複數個麥克風元件312。麥克風元件312可組織於第一集群對316、第二集群對318及第三集群對320中,其等分別沿第一軸308對應於第一集群對302、第二集群對304及第三集群對306或為第一集群對302、第二集群對304及第三集群對306之複製。即,第二軸314上之集群316a、316b間隔開相同第一距離d1,且分別含有與第一軸308上之集群302a、302b相同的麥克風元件312之數目及配置。同樣地,第二軸314上之集群318a、318b間隔開相同第二距離d2,且分別含有與第一軸308上之集群304a、304b相同的麥克風元件312之數目及配置。且第二軸314上之集群320a、302b間隔開相同第三距離d3,且分別含有與第一軸308上之集群306a、306b相同的麥克風元件312之數目及配置。依此方式,沿第一軸308形成之線性巢套陣列可疊加至第二軸314上。
在所繪示之實施例中,第一軸308之一中心與第二軸314之一中心對準,且集群對302、304、306、316、318、320之各者對稱地放置於正交於其(例如,軸314或308)之軸其上,或繞該軸居中。此確保由第一軸308上之麥克風元件310形成之線性麥克風陣列與由第二軸314上之麥克風元件312形成之線性麥克風陣列共用一中心或中點。在實施例中,適當波束形成技術可應用於麥克風300之正交線性陣列以產生一環形拾音圖案及/或形成一第一階極性圖案(諸如,例如,超心形、超級心形等)且將該極性圖案轉至一所期望角度以獲得平面方向性。例如,雖然沿第一軸308之麥克風元件310可用於產生具有一方向極性圖案之一線性陣列,諸如(例如)一心形拾音圖案,但沿軸308及314之兩個正交線性陣列之組合可形成一環形拾音圖案或一平面方向極性圖案。在一些實施例中,適當波束形成技術可形成指向朝向各軸之端部之一單向或心形極性圖案,或指向四個不同平面方向之一總四個極性圖案,以最大化麥克風300周圍之所有拾音。在其他實施例中,可藉由組合原始四個極性圖案且將組合圖案轉至沿(例如)麥克風100所處之桌子之平面之任何角度來產生額外極性圖案。
在一些實施例中,麥克風300進一步包含沿麥克風300之一或多個可選軸(諸如,例如圖3中所展示之對角線軸324及326)放置之額外麥克風元件322以在一給定頻帶內提高SNR或增加麥克風靈敏度或方向性。額外麥克風元件322可經配置為單一元件(未展示)或成集群(例如:集群328a及集群328b),如圖3中所展示。
現參考圖4,所展示係根據實施例之另一例示性麥克風400,其包括沿一第一軸404配置之一第一線性麥克風陣列402及沿正交與第一軸404之一第二軸408配置之一第二線性麥克風陣列406。類似於圖3中所展示之麥克風300,正交線性陣列402及406可用於為麥克風400產生一平面方向極性圖案。亦類似於麥克風300,線性麥克風陣列402包含第一軸404上之三個巢套集群對410、412及414,線性麥克風陣列406包含第二軸408上之三個對應巢套集群對416、418及420,且包含於其中之所有麥克風元件定位於包含於麥克風400中之一支撐件423 (例如,一方塊架、一PCB、一基板等)之一第一側或表面422上。麥克風元件可電及/或機械地耦合至支撐件423,其大體上界定麥克風400之一整體尺寸及形狀(此處展示為一圓形)。在圖4中,集群對410、412、414、416、418、420之各者包含四個麥克風元件(或「四邊形」)之集群。每集群之其他數目個麥克風元件係可行的且可想到。
在實施例中,麥克風400可進一步包含定位於相對於第一表面422之支撐件423之一第二側或表面(未展示)上的複數個麥克風元件以增加由麥克風400涵蓋之不同頻帶之數目。在所繪示之實施例中,線性麥克風陣列402包含定位於相對於集群對410、412及414之支撐件423之第二表面上的一第四集群對424。作為一實例,第二表面可為麥克風400之一頂表面或前表面,然第一表面422係麥克風400之後表面或底表面,且反之亦然。如所展示,第四集群對424包含集群424a及424b,其等之各者包含間隔開一第四距離之一對麥克風元件,該第四距離小於第一集群對410之集群410a、410b之間的一第一距離。例如,在一個實施例中,集群424a、424b之間的第四距離係7毫米,而集群410a、410b之間的第一距離係15.9毫米,集群412a、412b之間的一第二距離係40毫米,且集群414a、414b之間的一第三距離係88.9毫米。因而,第四集群對424巢套於第一集群對410內,但沿第一軸404之一相對側。類似地,線性麥克風陣列406可進一步包含包括集群426a、426b之一第四集群對426,其等之各者包含一對麥克風元件。集群426a、426b亦彼此間隔開第四距離且巢套於一第一集群對416內但沿第二軸408之相對側。雖然總共包括八個麥克風元件之兩個集群對經展示為配置於麥克風400之第二表面上,但更多或更少之集群對及/或麥克風元件係可行的且可想到。
可選擇第四距離以提供比(例如)由第一集群對410及416涵蓋之高頻帶更高之一頻帶之涵蓋。例如,在某些實施例中,可能不可能歸因於其間缺乏剩餘空間而將第四集群對424及426放置於與其他集群對410、412、414相同之表面422上。在支撐件423之相對表面上放置麥克風元件增加可用表面區域之量,其使得能夠涵蓋包含更高頻帶之額外頻帶。例如,麥克風400可具有比(例如)麥克風300更寬之整體頻帶涵蓋。雖然本文中描述四個頻帶之涵蓋,但可通過沿各軸放置適當間隔開之額外組麥克風元件來添加額外頻帶,直到所有所期望帶寬及/或整體可聽頻譜經涵蓋於必要SNR目標內。
圖5繪示根據實施例之一例示性麥克風系統500。麥克風系統500包括複數個麥克風元件502、一波束形成器504及一輸出產生單元506。麥克風系統500之各種組件可使用可由一或多個電腦執行之軟體(諸如具有一處理器及記憶體之一計算裝置)及/或藉由硬體(例如,離散邏輯電路、專用積體電路(ASIC)、可程式化閘陣列(PGA)、場可程式化閘陣列(FPGA)等)來實施。例如,波束形成器504之一些或所有組件可使用離散電路裝置及/或使用執行儲存於一記憶體(未展示)中之程式碼之一或多個處理器(例如,音訊處理器及/或數位信號處理器)來實施,該程式碼經組態以執行本文中所描述之一或多個處理或操作,諸如,例如,圖8中所展示之方法800。因此,在實施例中,系統500可包含一或多個處理器、記憶體裝置、計算裝置及/或未展示於圖5中之其他硬體組件。在一較佳實施例中,系統500包含至少兩個單獨處理器,一個用於合併及格式化所有麥克風元件,且另一個用於實施DSP功能。
麥克風元件502可包含包含於圖1中所展示之麥克風100、圖3中所展示之麥克風300、圖4中所展示之麥克風400或根據本文中所描述之技術設計之其他麥克風之任何者中的麥克風元件。波束形成器504可與麥克風元件502通信且可用於波束形成由麥克風元件502捕獲之音訊信號。輸出產生單元506可與波束形成器504通信且可用於處理自波束形成器504接收之輸出信號用於經由(例如)揚聲器、電視廣播等之輸出產生。
在實施例中,波束形成器504可包含一或多個組件以有利於處理自麥克風元件502接收之音訊信號,諸如,例如圖6之圖案形成波束形成器600及/或圖7之圖案組合波束形成器700。如下文參考圖8更詳細所描述,根據實施例,圖案形成波束形成器600組合由以一線性陣列配置之一組麥克風元件捕獲之音訊信號以形成具有一方向極性圖案之一組合輸出信號。且根據實施例,圖案組合波束形成器700組合自一麥克風陣列中之多個巢套組接收之輸出信號以形成整個陣列之一最終心形輸出。其他波束形成技術亦可由波束形成器504執行以獲得一所期望輸出。
圖8繪示根據實施例之產生具有用於包括至少一個線性巢套陣列之一麥克風陣列的一方向極性圖案之一波束形成輸出信號之一例示性方法800。方法800之所有或部分可由一或多個處理器(諸如,例如,包含於圖5之麥克風系統500中之一音訊處理器)及/或麥克風內或外部之其他處理裝置(例如,類比至數位轉換器、加密晶片等)執行。另外,一或多個其他類型之組件(例如,記憶體、輸入及/或輸出裝置、發射器、接收器、緩衝器、驅動器、離散組件、邏輯電路等)亦可與處理器及/或其他處理組件結合使用以執行方法800之任何、一些或所有步驟。例如,儲存於系統500之一記憶體中之程式碼可由音訊處理器執行以便執行方法800之一或多個操作。
在一些實施例中,方法800之某些操作可由圖6之圖案形成波束形成器600執行,且方法800之其他操作可由圖7之圖案組合波束形成器700執行。麥克風陣列可為本文中所描述之麥克風陣列之任何者,諸如,例如圖2之麥克風陣列200、圖3之麥克風300中之線性麥克風陣列之一或多者或圖4中所展示之線性麥克風陣列402及406之一或多者。在一些實施例中,麥克風陣列包含耦合至一支撐件(諸如,例如圖1之支撐件112、圖3之支撐件311或圖4之支撐件423)之複數個麥克風元件。麥克風元件可為(例如)固有地全向之MEMS轉換器、其他類型之全向麥克風、駐極體或電容式麥克風或其他類型之全向轉換器或感測器。
返回參考圖8,方法800在方塊802處利用一波束形成器或處理器開始自沿一麥克風支撐件之一或多個軸以一巢套組態配置之複數個麥克風元件(例如,圖5之麥克風元件502)接收音訊信號。巢套組態可採用不同形式,例如,如由圖1至圖4之不同麥克風陣列所展示。作為一實例,複數個麥克風元件可包含沿第一軸(例如,圖3之軸308)配置且亦巢套於相同軸上之一第二組麥克風元件內之一第一組麥克風元件。第一組(例如,圖2之組1)可包含彼此間隔開一第一距離(例如,圖2之d1)之至少兩個麥克風元件(例如,圖2之麥克風元件102a、102b),該第一距離經選擇用於在一第一頻帶中之最佳麥克風操作。第二組(例如,圖2之組2)可包含彼此間隔開一第二距離(例如,圖2之d2)之至少兩個麥克風元件(例如,圖2之麥克風元件104a、104b),該第二距離大於第一距離且經選擇用於在低於第一頻帶之一第二頻帶中之最佳麥克風操作。各組之麥克風元件可對稱地定位於第一軸上,例如,相對於一第二、正交軸(例如,如圖1中所展示)。
在一些實施例中,複數個麥克風元件可進一步包含一第三組(例如,圖2之組3)元件,該等元件包括沿第一軸彼此間隔開一第三距離(例如,圖2之d3)之至少兩個麥克風元件(例如,圖2之麥克風元件106a、106b)。第三距離可大於第二距離,使得第二組可巢套於第三組內。第三距離可經選擇以組態第三組麥克風元件用於在低於第二頻帶之一第三頻帶中之最佳麥克風操作。
在一些實施例中,巢套組之至少一者包括沿第一軸間隔開指定距離之兩個集群之麥克風元件(例如,如圖3中所展示),而非兩個個別麥克風元件。對於此等組,至少兩個麥克風元件可包含一第一集群之兩個或更多個麥克風元件(例如,圖3之集群302a、304a或306a)及定位於距第一集群一指定距離(例如,d1、d2或d3)之一第二集群之兩個或更多個麥克風元件(例如,圖3之集群302b、304b或306b)。各組之第二集群可在麥克風元件之數目(例如,2、4等)及配置(例如,放置、間隔、對稱性等)方面與該組之第一集群對應或為其一複製。
在方塊804處,對於沿一給定軸之各組麥克風元件,自該組之麥克風元件接收之音訊信號經組合以產生具有一方向極性圖案(諸如,例如一心形極性圖案)之一輸出信號。在某些實施例中,在方塊804處組合用於一給定組麥克風元件之音訊信號包含:減去自其中之麥克風元件接收之音訊信號以產生具有一雙向極性圖案之一第一信號;將所接收音訊信號相加以產生具有一全向極性圖案之一第二信號;及將第一信號及第二信號相加以產生具有一心形極性圖案之一組合輸出信號。如將瞭解,可重複與方塊804相關聯之操作,直至麥克風陣列內之所有組具有表示其中之麥克風元件之組合輸出之對應輸出信號。
若麥克風元件以集群配置,則方塊804處之信號組合程序可包含:在產生第一信號之前,基於由該群集中之麥克風元件捕獲之音訊信號產生該組中之各集群(例如,前集群及後集群)之一集群信號。可藉由(例如)將自包含於該集群中之緊密定位之麥克風元件之各者接收之音訊信號相加且歸一化相加結果來產生集群信號。各集群之麥克風元件可有效地作為一單一、更高靈敏度麥克風操作,其提供SNR一之增強(與個別麥克風元件相比)。一旦為該組(或集群對)內之各集群產生前集群信號及後集群信號,則可根據方塊804組合各組之前集群信號及後集群信號以產生該組之組合輸出信號。用於組合各麥克風群集之音訊信號之其他技術亦係可行且可想到。
在實施例中,方塊804中之信號組合程序之全部或部分可由圖6之例示性圖案形成波束形成器600執行。如所展示,波束形成器600接收由包含於一組(或集群對)之一麥克風陣列中之一或多個前麥克風元件(例如,一單一元件或一前集群元件)及一或多個後麥克風元件(例如,一單一元件或一後集群元件)產生或輸出之音訊信號。前元件及後元件可沿一第一軸彼此間隔開一指定距離。在一較佳實施例中,麥克風元件係固有地具有一全向極性圖案之MEMS轉換器。若麥克風陣列包含間隔開集群之麥克風元件,則所接收之音訊信號可為給定集群對之對應前集群信號及後集群信號。
如圖6中所展示,前音訊信號及後音訊信號經提供至波束形成器600之兩個不同片段。一第一片段602藉由(尤其)採用自給定集群對之全向麥克風元件接收之音訊信號之一差分而產生具有一雙向或其他一階極性圖案之一第一輸出信號。一第二片段604藉由(尤其)將自全向麥克風元件接收之音訊信號相加而產生至少在所關注之頻率內的具有一全向極性圖案之一第二輸出信號。將第一片段602及第二片段604之輸出相加在一起以產生具有一心形拾音圖案或其他方向極性圖案之一組合輸出信號。
在實施例中,第一片段602可對所接收之音訊信號執行減法、積分及延遲操作以產生雙向或其他一階極性圖案。如圖6中所展示,第一片段602包含與前麥克風元件及後麥克風元件通信之一減法(或反向及和)元件606。減法元件606藉由自前音訊信號減去後音訊信號來產生一差分信號。
第一片段602亦包含用於對自減法元件606接收之差分信號執行一積分操作之一積分子系統。在一些實施例中,積分子系統可作為一校正濾波器操作,其校正由減法元件606輸出之差分信號之傾斜頻率響應。例如,校正濾波器可具有一傾斜頻率響應,其係差分信號之傾斜響應之倒數。另外,校正濾波器可將一90度相移添加至第一片段602之輸出,使得圖案之前部係相位對準且圖案之後部係反對準,因此能夠產生心形圖案。在一些實施例中,可使用適當組態之低通濾波器來實施積分子系統。
在所繪示之實施例中,積分子系統包含一積分增益元件607,其經組態以將一增益因數k3 (亦稱為一積分常數)應用於差分信號。可將積分常數k3調諧至麥克風集群(或元件)之間的已知間隔或距離(例如,d1、d2或d3)。例如,積分常數k3可等於(聲速)/(採樣率)/(集群之間的距離)。積分子系統亦包含由一反饋增益元件608、一延遲元件609及一相加元件610形成之一反饋迴路,如所展示。反饋增益元件608具有一增益因數k4,其可經選擇以將反饋增益元件608組態為一「洩漏」積分器,以便根據需要使第一片段602更加穩健地抵抗反饋不穩定性。作為一實例,在一些實施例中,增益因數k4可等於或小於一(1)。延遲元件609將一適當量延遲(例如,z-1
)添加至反饋增益元件608之輸出。在所繪示之實施例中,延遲量經設置為1(即一單一樣品延遲)。
在一些實施例中,第一片段602亦包含在第一片段602之開始處之一第二延遲元件611 (如圖6中所展示)以在由元件606之減法之前將一延遲(例如,z-k6
)添加至後音訊信號。可基於路徑602之一所期望一階極性圖案來選擇第二延遲元件611之「k6」參數。例如,當k6經設置為零(0)時,第一片段602產生一雙向極性圖案,然而,當k6經設置為大於零之一整數時,可產生其他一階極性圖案。
如圖6中所展示,相加元件610之輸出(或積分子系統之輸出)可經提供至一最終相加元件612,其亦接收第二片段604之輸出。在一些實施例中,第一片段602進一步包含具有增益因數k5之一增益元件613,其耦合於積分子系統之輸出與最終相加元件612之一輸入之間。增益元件613可經組態以在到達相加元件612之前應用一適當增益量至積分子系統之校正輸出。可基於應用於第二片段604中之增益量來選擇確切增益量k5,如下文所描述。
第二片段604可對自給定組麥克風元件接收之音訊信號執行相加及增益操作以產生全向響應。如圖6中所展示,第二片段604包含:具有增益因數k1之一第一增益元件614,其與前麥克風元件通信;及具有增益因數k2之一第二增益元件616,其與後麥克風元件通信。在一些實施例中,增益元件614及616可經組態以歸一化前麥克風元件及後麥克風元件之輸出。例如,增益元件614及616之增益因數k1及k2可經設置為0.5 (或1
/2
),使得第二片段604之輸出在量值方面匹配一單一全向麥克風之輸出。其他增益量係可行的且可想到。
在一些實施例中,增益組件613可包含於第一片段602上,作為第二片段604之第一增益元件614及第二增益元件616之一替代。在其他實施例中,可包含所有三個增益組件613、614、616,且增益因數k1、k2、k5可經組態以便在其等達到相加元件612之前將一適當量增益添加至積分子系統之校正輸出及/或第二片段604之輸出。例如,可選擇增益量k5以便獲得一特定一階極性圖案。在一較佳實施例中,為產生一心形圖案,可將增益因數k5設置為一(1),使得第一片段602之輸出(例如,雙向組件) 在量值方面與第二片段604之輸出匹配(例如,全向組件)。可取決於第一分段路徑602之所期望極性圖案、針對初始延遲元件611之k6參數所選擇之值及/或針對整個組麥克風元件之所期望極性圖案來選擇選擇增益因數k5之其他值。
如圖6中所展示,增益元件614及616之輸出可經提供至最終相加元件612,其將輸出相加以產生第二片段604之全向輸出。最終相加元件612亦將第二片段604之輸出及第一片段602之雙向(或其他一階圖案)輸出相加,因此產生波束形成器600之心形(或其他一階圖案)輸出。
返回參考圖8,一旦在方塊804處獲得具有一方向極性圖案之一最終輸出信號,方法800繼續至方塊806,其中交叉濾波應用於針對沿一給定軸配置之各組麥克風元件所產生之組合輸出信號,使得各組可最佳地涵蓋與其相關聯之頻帶。在方塊808處,可組合各組麥克風元件之濾波輸出以產生該軸上之麥克風元件之一最終輸出信號。
在實施例中,交叉濾波包含將一適當濾波器應用於各組(或集群對)之輸出以便將組合輸出信號隔離至不同或離散頻帶中。如將瞭解,在一給定組(或集群對)中之元件(或集群)之間的分離量與可由該組最佳地涵蓋之頻帶之間存在一反比關係。例如,較大麥克風間隔可具有一較小低頻響應損耗,因此導致一更好低頻SNR。同時,較大間隔可具有一較低頻率零點,且較小間隔可具有一較高頻率零點。在實施例中,可應用交叉濾波以避免此等零點並將麥克風陣列之一理想頻率響應縫合在一起,同時維持比一單一緊密間隔之麥克風對更好之一SNR。
根據實施例,方塊806及808之全部或部分可由圖7之例示性圖案組合波束形成器700執行。在所繪示之實施例中,波束形成器700接收一最近或最緊密間隔組之麥克風元件(例如,圖3之集群302a、302b)一中間或中間間隔組之麥克風元件(例如,圖3之集群304a、304b)及一最遠或最遠間隔組之麥克風元件(例如,圖3之集群306a、306b)之輸出信號,所有沿一第一軸。在實施例中,波束形成器700可與複數個波束形成器600通信以便接收組合輸出信號。例如,一單獨波束形成器600可耦合至包含於麥克風陣列中之各集群對(或組),使得各自波束形成器600可經定製為(例如)該集群對之分離距離及/或其他因素。
如所展示,波束形成器700包含複數個濾波器702、704、706以實施交叉濾波處理。在所繪示之實例中,最接近組之組合輸出信號經提供至高通濾波器702,中間組之組合輸出信號經提供至帶通濾波器704,且最遠組之組合輸出信號經提供至低通濾波器706。可基於對應組或集群對之特定頻率響應特性(包含(例如)頻率零點之位置、麥克風陣列之一所期望頻率響應等)來選擇濾波器702、704及706之截止頻率。根據一個實施例,對於帶通濾波器704,高頻率截止可由對應組合輸出信號之心形頻率響應之自然-1分貝(dB)點判定,且低頻率截止可藉由較低頻帶(但不低於20赫茲(Hz))之截止判定。濾波器702、704、706可位類比或數位濾波器。在一較佳實施例中,濾波器702、704、706使用一數位信號處理器(DSP)或其類似者上之數位有限脈衝響應(FIR)濾波器來實施。
在其他實施例中,波束形成器700可包含更多或更少濾波器。例如,波束形成器700可經組態以包含四個濾波器或兩個濾波器,而非所繪示之三個頻帶解決方案。在其他實施例中,波束形成器700可包含濾波器之一不同組合。例如,波束形成器700可經組態以包含多個帶通濾波器,而非高通濾波器或低通濾波器,或帶通濾波器、低通濾波器及/或高通濾波器之任何其他組合。
如圖7中所展示,濾波輸出經提供至波束形成器700之一相加元件708。相加元件708將濾波輸出組合或相加以產生一輸出信號,該輸出信號可表示包含於麥克風陣列之第一軸上之麥克風元件之一最終心形輸出或其他一階極性圖案。
在一些實施例中,針對一給定麥克風陣列之複數個麥克風元件進一步包含沿正交於第一軸之一第二軸(例如,圖3之軸314)配置之額外組元件。第二軸上之額外組可為在配置(例如,巢套、間隔、集群等)及麥克風元件之數目(例如,1、2、4等)方面上配置於第一軸上之組之複製或副本。例如,額外組麥克風元件可包含沿第二軸巢套於一第二組(例如,圖3之集群對318)內之一第一組(例如,圖3之集群對316)。類似於沿第一軸配置之第一組,第二軸上之第一組可包含彼此間隔開第一距離(例如,圖2之d1)之至少兩個麥克風元件(例如,圖3之集群316a/316b),以便最佳地涵蓋第一頻帶。同樣地,第二組可包含彼此間隔開第二距離(例如,圖2之d2)之至少兩個麥克風元件(例如,圖3之集群318a、318b),以便最佳地涵蓋第二頻帶,類似於第一軸上之第二組。
返回參考圖8,在麥克風陣列包含兩個正交軸上之麥克風元件之情況下,方法800可進一步包含,在方塊810處,將針對第一軸產生之最終輸出信號與針對第二軸產生之一最終輸出信號組合以便產生具有一平面及/或可操縱方向極性圖案之一最終組合輸出信號。在此等情況下,可將塊802至808應用於配置於第二軸上之麥克風元件以產生該軸之最終輸出信號。
例如,在方塊802處,除第一軸外,亦可自第二軸上之各麥克風元件接收音訊信號。在方塊804處,除第一軸外,可為配置於第二軸上之各組(或集群對)麥克風元件產生一組合輸出信號。即,可針對陣列之各軸上之各組元件重複方塊804中之組合處理(且如圖6中所展示)。方塊806及808 (及如圖7中所展示)中之濾波器及組合程序可以一逐軸方式執行。即,包含於第二軸上之組之組合輸出信號可在一個波束形成程序中經濾波及組合在一起,而包含於第二軸上之組之組合輸出信號可在另一個波束形成程序中同時或連續經濾波及組合在一起。接著可將方塊808處針對各軸所產生之最終輸出信號提供至方塊810。
在方塊810處,將第一軸之最終輸出信號與第二軸之最終輸出信號組合以獲得具有一平面方向響應(例如,環形、單向等)之一最終組合輸出信號。若需要一轉向一階極性圖案,則可使用加權及相加技術來組合兩個軸之信號,或若需要一環形極性圖案,則使用濾波及相加技術。例如,可將適當加權值應用於各軸之輸出信號以產生不同極性圖案及/或將拾音圖案之波瓣轉向至一所期望方向。
根據某些實施例,一種組裝一麥克風陣列之方法可包括:沿一第一軸形成一第一組麥克風元件,該第一組包含彼此間隔開一第一距離之至少兩個麥克風元件;沿該第一軸形成一第二組麥克風元件,該第二組包含彼此間隔開大於該第一距離之一第二距離之至少兩個麥克風元件,使得該第一組巢套於該第二組內;及將各麥克風元件電耦合至至少一個處理器用於處理由該等麥克風元件捕獲之音訊信號,其中該第一距離經選擇用於在一第一頻帶中之最佳麥克風操作,且該第二距離經選擇用於在低於該第一頻帶之一第二頻帶中之最佳麥克風操作。根據態樣,該方法可進一步包括:形成沿正交於該第一軸之一第二軸定位之一第三組元件,該第三組包括彼此間隔開該第二距離之至少兩個麥克風元件;及形成沿該第二軸巢套於該第三組內之一第四組元件,該第四組包括彼此間隔開該第一距離之至少兩個麥克風元件。根據進一步態樣,該方法亦可包括:形成一第五組元件,該第五組元件包括沿該第一軸彼此間隔開一第三距離之至少兩個麥克風元件,該第三距離大該於第二距離,使得該第二組巢套於該第五組中,其中該第三距離經選擇用於在低於該第二頻帶之一第三頻帶中之最佳麥克風操作。根據其他態樣,該方法可進一步包括將該第一組及該第二組之一選擇組放置於該麥克風陣列之一第一表面上且將該剩餘組放置於相對於該第一表面之一第二表面上。
圖9係根據實施例之用於一例示性麥克風陣列之一頻率響應曲線900,該麥克風陣列具有以一線性巢套陣列配置之三組麥克風元件,例如,類似於沿圖3中之第一軸308配置之集群對302、304、306。特定言之,曲線900展示包含間隔14毫米(mm)之麥克風集群的一最近組(902)、包含間隔40mm之麥克風集群的一中間組(904)及包含間隔100mm之麥克風集群的一最遠組(906)之濾波頻率響應。另外,曲線900展示針對所有三組線性巢套陣列之一組合頻率響應908。在實施例中,頻率響應902、904、906表示包含於圖7之圖案組合波束形成器700中之各自交叉濾波器702、704、706之濾波輸出,且頻率響應908係濾波信號之組合輸出或相加。
如所展示,最近組之頻率響應902在約2千赫茲(kHz)之後變平,而最遠組之頻率響應906大體上係平坦的,直至約200Hz。中間組之頻率響應904在約1kHz處達到峰值,一-6dB/倍頻程上昇在約650Hz處與最遠組響應906交叉,且一-6dB/倍頻程下降在約1.5kHz處與最近組響應902交叉。濾波及組合頻率響應908將三個響應縫合在一起以跨幾乎整個音訊帶寬(例如,20Hz至20kHz)提供一大體上平坦頻率響應,其中衰減僅發生於較高頻率(例如,高於5kHz)處。
圖10繪示根據實施例之用於一例示性麥克風陣列之一雜訊響應曲線1000,該麥克風陣列具有三組麥克風元件,其等以一線性巢套陣列配置,例如,類似於沿圖3中之第一軸308配置之集群對302、304、306。雜訊響應曲線1000對應於圖9中所展示之濾波及組合頻率響應曲線900。特定言之,雜訊響應曲線1000展示雜訊響應,其表示最近組(1002)、中間組(1004)及最遠組(1006)之濾波輸出,以及所有三者之組合輸出(1008)。
因此,本文中所描述之技術提供一種高效能麥克風,其能夠具有一高度定方向極性圖案,經改良信雜比(SNR)及寬頻音訊應用(例如,20赫茲(Hz)≤f≤20千赫茲(kHz))。麥克風包含至少一個線性巢套陣列,該陣列包括一組或一組以上之麥克風元件,其等間隔開經以最佳地涵蓋一所期望工作頻帶之一距離。在一些情況下,麥克風元件經聚類並交叉濾波以進一步改良SNR特性且最佳化頻率響應。一或多個波束形成器可用於為具有一所期望方向極性圖案(例如,心形、超級心形等)之各線性陣列產生一組合輸出信號。在一些情況下,至少兩個線性陣列對稱地配置於正交軸上以達成一平面方向極性圖案(例如,環形等),因此使麥克風最佳用於會議應用。
本發明旨在解釋如何根據本技術來設計及使用各種實施例,而非限制其真實、預期及合理範疇及精神。前述描述不旨在為詳盡的或限於所揭示之準確形式。鑑於上述教示,修改或變動係可行的。實施例經選擇及描述以提供所描述技術及其實際應用之原理之最佳圖解說明,且使一般技術者能利用各種實施例中之技術及如適於所考量之特定使用之各種修改。所有此等修改及變化在由隨附申請專利範圍判定之實施例之範疇內,如在本專利申請未決期間可修改,及當根據其等公平、合法及平等享有權利之廣度解釋時,所有此等修改及變化之所有等同物。
100‧‧‧麥克風
102a‧‧‧麥克風元件
102b‧‧‧麥克風元件
104a‧‧‧麥克風元件
104b‧‧‧麥克風元件
106a‧‧‧麥克風元件
106b‧‧‧麥克風元件
108‧‧‧第一軸
110‧‧‧第二軸
112‧‧‧支撐件
200‧‧‧麥克風陣列
300‧‧‧麥克風
302a‧‧‧麥克風集群/第一集群/第一或前集群
302b‧‧‧麥克風集群/複製或後集群
304a‧‧‧麥克風集群/第一集群/第一或前集群
304b‧‧‧麥克風集群/複製或後集群
306a‧‧‧麥克風集群/第一集群/第一或前集群
306b‧‧‧麥克風集群/複製或後集群
308‧‧‧第一軸
310‧‧‧麥克風元件
312‧‧‧麥克風元件
314‧‧‧第二軸
316a‧‧‧集群
316b‧‧‧集群
318a‧‧‧集群
318b‧‧‧集群
320a‧‧‧集群
320b‧‧‧集群
322‧‧‧麥克風元件
324‧‧‧對角線軸
326‧‧‧對角線軸
328a‧‧‧集群
328b‧‧‧集群
400‧‧‧麥克風
402‧‧‧第一線性麥克風陣列
404‧‧‧第一軸
406‧‧‧第二線性麥克風陣列
408‧‧‧第二軸
410a‧‧‧集群
410b‧‧‧集群
412a‧‧‧集群
412b‧‧‧集群
414a‧‧‧集群
414b‧‧‧集群
416a‧‧‧集群
416b‧‧‧集群
418a‧‧‧集群
418b‧‧‧集群
420a‧‧‧集群
420b‧‧‧集群
422‧‧‧第一表面
423‧‧‧支撐件
424a‧‧‧集群
424b‧‧‧集群
426a‧‧‧集群
426b‧‧‧集群
500‧‧‧麥克風系統
502‧‧‧麥克風元件
504‧‧‧波束形成器
506‧‧‧輸出產生單元
600‧‧‧圖案形成波束形成器
602‧‧‧第一片段
604‧‧‧第二片段
606‧‧‧減法(或反向及和)元件
607‧‧‧積分增益元件
608‧‧‧反饋增益元件
609‧‧‧延遲元件
610‧‧‧相加元件
611‧‧‧ 第二延遲元件
612‧‧‧最終相加元件
613‧‧‧增益元件
614‧‧‧第一增益元件
616‧‧‧第二增益元件
700‧‧‧圖案組合波束形成器
702‧‧‧濾波器
704‧‧‧濾波器
706‧‧‧濾波器
708‧‧‧相加元件
800‧‧‧方法
802‧‧‧方塊
804‧‧‧方塊
806‧‧‧方塊
808‧‧‧方塊
810‧‧‧方塊
900‧‧‧頻率響應曲線
902‧‧‧最近組
904‧‧‧中間組
906‧‧‧最遠組
908‧‧‧組合頻率響應
1000‧‧‧雜訊響應曲線
1002‧‧‧最近組
1004‧‧‧中間組
1006‧‧‧最遠組
1008‧‧‧組合輸出
d1‧‧‧第一距離
d2‧‧‧第二距離
d3‧‧‧第三距離
圖1係繪示根據一或多個實施例之一例示性麥克風陣列之一示意圖。
圖2係繪示根據一或多個實施例之用於圖1之麥克風陣列的設計考量之一示意圖。
圖3係繪示根據一或多個實施例之另一例示性麥克風陣列之一示意圖。
圖4係繪示根據一或多個實施例之又另一例示性麥克風陣列之一示意圖。
圖5係根據一或多個實施例之一例示性麥克風系統之一方塊圖。
圖6係繪示根據一或多個實施例之用於組合由一給定組麥克風元件捕獲之音訊信號的一例示性圖案形成波束形成器之一方塊圖。
圖7係繪示根據一或多個實施例之用於組合自巢套組麥克風元件接收之音訊輸出的一例示性圖案組合波束形成器之一方塊圖。
圖8係繪示根據一或多個實施例之由一音訊處理器執行以產生具有用於包括至少一個線性巢套陣列之一麥克風陣列之一方向極性圖案之一波束形成輸出信號的一例示性方法之一流程圖。
圖9係根據一或多個實施例之一例示性麥克風陣列之一頻率響應曲線圖。
圖10係根據一或多個實施例之一例示性麥克風陣列之一雜訊響應曲線圖。
100‧‧‧麥克風
102a‧‧‧麥克風元件
102b‧‧‧麥克風元件
104a‧‧‧麥克風元件
104b‧‧‧麥克風元件
106a‧‧‧麥克風元件
106b‧‧‧麥克風元件
108‧‧‧第一軸
110‧‧‧第二軸
112‧‧‧支撐件
Claims (26)
- 一種麥克風陣列,其包括: 複數個麥克風元件,其包括: 一第一組元件,其沿一第一軸配置且包括彼此間隔開一第一距離之至少兩個麥克風元件; 一第二組元件,其沿該第一軸配置且包括彼此間隔開大於該第一距離之一第二距離之至少兩個麥克風元件,使得該第一組巢套於該第二組內; 一第三組元件,其沿正交於該第一軸之一第二軸配置,該第三組包括彼此間隔開該第二距離之至少兩個麥克風元件;及 一第四組元件,其沿該第二軸巢套於該第三組內,該第四組包括彼此間隔開該第一距離之至少兩個麥克風元件, 其中該第一距離經選擇用於在一第一頻帶中之最佳麥克風操作,且該第二距離經選擇用於在低於該第一頻帶之一第二頻帶中之最佳麥克風操作,且 其中對於各組,該至少兩個麥克風元件包含一第一集群之兩個或更多個麥克風元件及一第二集群之兩個或更多個麥克風元件,該第一集群與該第二集群間隔開該指定距離。
- 如請求項1之麥克風陣列,其中在各集群內,該等麥克風元件彼此相鄰地配置且關於該第一軸對稱。
- 如請求項2之麥克風陣列,其中包含於該第一組中之各集群含有兩個麥克風元件,且包含於該第二組中之各集群含有四個麥克風元件。
- 如請求項1之麥克風陣列,其中對於各組元件,該第二集群在麥克風元件之數目及配置方面與該第一集群對應。
- 如請求項1之麥克風陣列,其中該第一軸之一中心與該第二軸之一中心對準,且各組麥克風元件相對於該正交軸對稱地配置。
- 如請求項1之麥克風陣列,其中該第三組元件及該第四組元件在麥克風元件之數目及配置方面分別對應於該第一組元件及該第二組元件。
- 如請求項1之麥克風陣列,其中該複數個麥克風元件進一步包括: 一第五組元件,其包括沿該第一軸彼此間隔開一第三距離之至少兩個麥克風元件,該第三距離大於該第二距離,使得該第二組巢套於該第五組內,其中該第三距離經選擇用於在低於該第二頻帶之一第三頻帶中之最佳麥克風操作。
- 如請求項1之麥克風陣列,其中該第一組及該第二組之一選擇組放置於該麥克風陣列之一第一表面上,且剩餘組放置於相對於該第一表面之一第二表面上。
- 如請求項8之麥克風陣列,其中該第一表面係該麥克風陣列之一後面且該第二表面係其之一前面。
- 如請求項1之麥克風陣列,其中各麥克風元件係一微機電系統(MEMS)麥克風。
- 一種麥克風系統,其包括: 一麥克風陣列,其包含耦合至一支撐件之複數個麥克風元件,該複數個麥克風元件包括沿該支撐件之一第一軸配置之第一組元件及第二組元件,該第一組巢套於該第二組內,其中該第一組包含彼此間隔開一第一距離之至少兩個麥克風元件,該第一距離經選擇以組態該第一組在一第一頻帶中之最佳麥克風操作,且該第二組包含彼此間隔開大於該第一距離之一第二距離之至少兩個麥克風元件,該第二距離經選擇以組態該第二組在低於該第一頻帶之一第二頻帶中之最佳麥克風操作; 一記憶體,其經組態以儲存用於處理由該複數個麥克風元件捕獲之音訊信號並基於其產生一輸出信號之程式碼; 至少一個處理器,其與該記憶體及該麥克風陣列通信,該至少一個處理器經組態以回應於自該麥克風陣列接收音訊信號而執行該程式碼, 其中該程式碼經組態以: 自該麥克風陣列之各麥克風元件接收音訊信號; 對於沿該第一軸之各組元件,組合該組中之該等麥克風之該等音訊信號以產生具有一方向極性圖案之一組合輸出信號;且 組合該第一組及該第二組之該等組合輸出信號以產生該第一軸上之所有該等麥克風元件之一最終輸出信號。
- 如請求項11之麥克風系統,其中組合各組元件之該等音訊信號包括: 使該等音訊信號相減以產生一第一信號; 使該等音訊信號相加以產生一第二信號;及 使該第一信號及該第二信號相加以產生該組合輸出信號。
- 如請求項11之麥克風系統,其中對於各組,該至少兩個麥克風元件包含一第一集群之兩個或更多個麥克風元件及一第二集群之兩個或更多個麥克風元件,該第一集群與該第二集群間隔開該指定距離, 且其中組合各組元件之該等音訊信號包括: 對於一給定組中之各集群,使自該集群中之該等麥克風元件接收之該等音訊信號相加以產生一集群信號,及 對於各組,組合該組之該等集群信號以產生該組合輸出信號。
- 如請求項13之麥克風系統,其中對於各組元件,該第二集群在麥克風元件之數目及配置方面與該第一集群對應。
- 如請求項11之麥克風系統,其中該複數個麥克風元件進一步包括沿正交於該第一軸之該支撐件之一第二軸配置之第三組元件及第四組元件,該第三組巢套於該第四組內,且該第三組及該第四組在麥克風元件之數目及配置方面分別對應於該第一組及該第二組,且其中該程式碼進一步經組態以: 對於沿該第二軸之各組元件,組合該組中之該等麥克風元件之該等音訊信號以產生具有一方向極性圖案之一組合輸出信號; 組合該第三及第四組之該等組合輸出信號以產生該第二軸上之該等麥克風元件之一最終輸出信號;且 將該第一軸之該最終輸出信號與該第二軸之該最終輸出信號組合以產生具有一平面方向極性圖案之一最終組合輸出信號。
- 如請求項11之麥克風系統,其中該程式碼進一步經組態以: 在產生該輸出信號之前,應用交叉濾波於該等組合輸出信號使得該第一軸上之各組元件最佳地涵蓋與其相關聯之該頻帶。
- 如請求項16之麥克風系統,其中該複數個麥克風元件進一步包括一第五組元件,其包括沿該第一軸彼此間隔開一第三距離之至少兩個麥克風元件,該第三距離大於該第二距離,使得該第二組巢套於該第五組中,其中該第三距離經選擇以組態該第五組在低於該第二頻帶之一第三頻帶中之最佳麥克風操作,且 其中應用交叉濾波包含應用一帶通濾波器於該第二組之該組合輸出信號,應用一低通濾波器於該第五組之該組合輸出信號及應用一高通濾波器於該第一組之該組合輸出信號。
- 如請求項11之麥克風系統,其中各麥克風元件係一微機電系統(MEMS)麥克風。
- 一種由一或多個處理器執行以產生用於包括耦合至一支撐件之複數個麥克風元件的一麥克風陣列之一輸出信號之方法,該方法包括: 接收來自該複數個麥克風元件之音訊信號,該複數個麥克風元件包括沿該支撐件之一第一軸配置之第一組元件及第二組元件,該第一組巢套於該第二組內,其中該第一組包含彼此間隔開一第一距離之至少兩個麥克風元件,該第一距離經選擇以組態該第一組在一第一頻帶中之最佳麥克風操作,且該第二組包含彼此間隔開大於該第一距離之一第二距離之至少兩個麥克風元件,該第二距離經選擇以組態該第二組在低於該第一頻帶之一第二頻帶中之最佳麥克風操作; 對於沿該第一軸之各組元件,組合該組中之該等麥克風元件之該等音訊信號以產生具有一方向極性圖案之一組合輸出信號;及 組合該第一及該第二組之該等組合輸出信號以產生該第一軸上之所有麥克風元件之一最終輸出信號。
- 如請求項19之方法,其中組合各組元件之該等音訊信號包括: 使該等音訊信號相減以產生一第一信號; 使該等音訊信號相加以產生一第二信號;及 使該第一信號及該第二信號相加以產生該組合輸出信號。
- 如請求項19之方法,其中對於各組,該至少兩個麥克風元件包含一第一集群之兩個或更多個麥克風元件及一第二集群之兩個或更多個麥克風元件,該第一集群與該第二集群間隔開該指定距離, 且其中組合各組元件之該等音訊信號包括: 對於一給定組中之各集群,使自該集群中之該等麥克風元件接收之該等音訊信號相加以產生一集群信號,及 對於各組,組合該組之該等集群信號以產生該組合輸出信號。
- 如請求項21之方法,其中對於各組元件,該第二集群在麥克風元件之數目及配置方面與該第一集群對應。
- 如請求項19之方法,其中該複數個麥克風元件進一步包括沿正交於該第一軸之該支撐件之一第二軸配置之第三組元件及第四組元件,該第三組巢套於該第四組內,其中該第三組及該第四組在麥克風元件之數目及配置方面分別對應於該第一及該第二組,且其中該方法進一步包括: 對於沿該第二軸之各組元件,組合該組中之該等麥克風元件之該等音訊信號以產生具有一方向極性圖案之一組合輸出信號; 組合該第三及該第四組之該等組合輸出信號以產生該第二軸上之所有麥克風元件之一最終輸出信號;及 將該第一軸之該最終輸出信號與該第二軸之該最終輸出信號組合以產生具有一更高階極性圖案之一最終組合輸出信號。
- 如請求項19之方法,其進一步包括: 在產生該第一軸上之所有麥克風元件之該最終輸出信號之前,應用交叉濾波於該等組合輸出信號使得該第一軸上之各組元件最佳地涵蓋與其相關聯之該頻帶。
- 如請求項24之方法,其中該複數個麥克風元件進一步包括一第五組元件,其包含沿該第一軸彼此間隔開一第三距離之至少兩個麥克風元件,該第三距離大於該第二距離,因此該第二組巢套於該第五組內,其中該第三距離經選擇以組態該第五組在低於該第二頻帶之一第三頻帶中之最佳麥克風操作,且 其中應用交叉濾波包含應用一帶通濾波器於該第二組之該組合輸出信號,應用一低通濾波器於該第五組之組合輸出信號及應用一高通濾波器於該第一組之該組合輸出信號。
- 如請求項19之方法,其中各麥克風元件係一微機電系統(MEMS)麥克風。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862679452P | 2018-06-01 | 2018-06-01 | |
US62/679,452 | 2018-06-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW202005415A true TW202005415A (zh) | 2020-01-16 |
Family
ID=66669098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW108118668A TW202005415A (zh) | 2018-06-01 | 2019-05-30 | 圖案形成麥克風陣列 |
Country Status (5)
Country | Link |
---|---|
US (2) | US11523212B2 (zh) |
EP (1) | EP3804356A1 (zh) |
CN (1) | CN112335261B (zh) |
TW (1) | TW202005415A (zh) |
WO (1) | WO2019231632A1 (zh) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9565493B2 (en) | 2015-04-30 | 2017-02-07 | Shure Acquisition Holdings, Inc. | Array microphone system and method of assembling the same |
US9554207B2 (en) | 2015-04-30 | 2017-01-24 | Shure Acquisition Holdings, Inc. | Offset cartridge microphones |
MC200185B1 (fr) * | 2016-09-16 | 2017-10-04 | Coronal Audio | Dispositif et procédé de captation et traitement d'un champ acoustique tridimensionnel |
MC200186B1 (fr) | 2016-09-30 | 2017-10-18 | Coronal Encoding | Procédé de conversion, d'encodage stéréophonique, de décodage et de transcodage d'un signal audio tridimensionnel |
US10367948B2 (en) | 2017-01-13 | 2019-07-30 | Shure Acquisition Holdings, Inc. | Post-mixing acoustic echo cancellation systems and methods |
EP3804356A1 (en) | 2018-06-01 | 2021-04-14 | Shure Acquisition Holdings, Inc. | Pattern-forming microphone array |
US11297423B2 (en) | 2018-06-15 | 2022-04-05 | Shure Acquisition Holdings, Inc. | Endfire linear array microphone |
WO2020061353A1 (en) * | 2018-09-20 | 2020-03-26 | Shure Acquisition Holdings, Inc. | Adjustable lobe shape for array microphones |
US11956590B2 (en) * | 2019-03-19 | 2024-04-09 | Northwestern Polytechnical University | Flexible differential microphone arrays with fractional order |
US11558693B2 (en) | 2019-03-21 | 2023-01-17 | Shure Acquisition Holdings, Inc. | Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality |
TW202044236A (zh) | 2019-03-21 | 2020-12-01 | 美商舒爾獲得控股公司 | 具有抑制功能的波束形成麥克風瓣之自動對焦、區域內自動對焦、及自動配置 |
EP3942842A1 (en) | 2019-03-21 | 2022-01-26 | Shure Acquisition Holdings, Inc. | Housings and associated design features for ceiling array microphones |
EP3973716A1 (en) | 2019-05-23 | 2022-03-30 | Shure Acquisition Holdings, Inc. | Steerable speaker array, system, and method for the same |
JP2022535229A (ja) | 2019-05-31 | 2022-08-05 | シュアー アクイジッション ホールディングス インコーポレイテッド | 音声およびノイズアクティビティ検出と統合された低レイテンシオートミキサー |
US11328740B2 (en) | 2019-08-07 | 2022-05-10 | Magic Leap, Inc. | Voice onset detection |
WO2021035201A1 (en) * | 2019-08-22 | 2021-02-25 | Bush Dane | Multi-talker separation using 3-tuple coprime microphone array |
CN114467312A (zh) | 2019-08-23 | 2022-05-10 | 舒尔获得控股公司 | 具有改进方向性的二维麦克风阵列 |
US12028678B2 (en) | 2019-11-01 | 2024-07-02 | Shure Acquisition Holdings, Inc. | Proximity microphone |
US10951981B1 (en) * | 2019-12-17 | 2021-03-16 | Northwestern Polyteclmical University | Linear differential microphone arrays based on geometric optimization |
KR20210091397A (ko) | 2020-01-13 | 2021-07-22 | 삼성전자주식회사 | 지향성 음향 센서 |
US11552611B2 (en) | 2020-02-07 | 2023-01-10 | Shure Acquisition Holdings, Inc. | System and method for automatic adjustment of reference gain |
US11917384B2 (en) | 2020-03-27 | 2024-02-27 | Magic Leap, Inc. | Method of waking a device using spoken voice commands |
WO2021226507A1 (en) | 2020-05-08 | 2021-11-11 | Nuance Communications, Inc. | System and method for data augmentation for multi-microphone signal processing |
WO2021243368A2 (en) | 2020-05-29 | 2021-12-02 | Shure Acquisition Holdings, Inc. | Transducer steering and configuration systems and methods using a local positioning system |
US20220225001A1 (en) * | 2021-01-13 | 2022-07-14 | Shure Acquisition Holdings, Inc. | Audio device housing |
WO2022165007A1 (en) | 2021-01-28 | 2022-08-04 | Shure Acquisition Holdings, Inc. | Hybrid audio beamforming system |
EP4416725A1 (en) * | 2021-10-14 | 2024-08-21 | Magic Leap, Inc. | Microphone array geometry |
US11778373B2 (en) * | 2022-01-06 | 2023-10-03 | Tymphany Worldwide Enterprises Limited | Microphone array and selecting optimal pickup pattern |
CN115665606B (zh) * | 2022-11-14 | 2023-04-07 | 深圳黄鹂智能科技有限公司 | 基于四麦克风的收音方法和收音装置 |
Family Cites Families (1009)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1535408A (en) | 1923-03-31 | 1925-04-28 | Charles F Fricke | Display device |
US1540788A (en) | 1924-10-24 | 1925-06-09 | Mcclure Edward | Border frame for open-metal-work panels and the like |
US1965830A (en) | 1933-03-18 | 1934-07-10 | Reginald B Hammer | Acoustic device |
US2113219A (en) | 1934-05-31 | 1938-04-05 | Rca Corp | Microphone |
US2075588A (en) | 1936-06-22 | 1937-03-30 | James V Lewis | Mirror and picture frame |
US2233412A (en) | 1937-07-03 | 1941-03-04 | Willis C Hill | Metallic window screen |
US2164655A (en) | 1937-10-28 | 1939-07-04 | Bertel J Kleerup | Stereopticon slide and method and means for producing same |
US2268529A (en) | 1938-11-21 | 1941-12-30 | Alfred H Stiles | Picture mounting means |
US2343037A (en) | 1941-02-27 | 1944-02-29 | William I Adelman | Frame |
US2377449A (en) | 1943-02-02 | 1945-06-05 | Joseph M Prevette | Combination screen and storm door and window |
US2539671A (en) | 1946-02-28 | 1951-01-30 | Rca Corp | Directional microphone |
US2521603A (en) | 1947-03-26 | 1950-09-05 | Pru Lesco Inc | Picture frame securing means |
US2481250A (en) | 1948-05-20 | 1949-09-06 | Gen Motors Corp | Engine starting apparatus |
US2533565A (en) | 1948-07-03 | 1950-12-12 | John M Eichelman | Display device having removable nonrigid panel |
US2828508A (en) | 1954-02-01 | 1958-04-01 | Specialites Alimentaires Bourg | Machine for injection-moulding of plastic articles |
US2777232A (en) | 1954-11-10 | 1957-01-15 | Robert M Kulicke | Picture frame |
US2912605A (en) | 1955-12-05 | 1959-11-10 | Tibbetts Lab Inc | Electromechanical transducer |
US2938113A (en) | 1956-03-17 | 1960-05-24 | Schneil Heinrich | Radio receiving set and housing therefor |
US2840181A (en) | 1956-08-07 | 1958-06-24 | Benjamin H Wildman | Loudspeaker cabinet |
US3005238A (en) | 1957-06-04 | 1961-10-24 | Deering Milliken Res Corp | Moisture control arrangement and method |
US2882633A (en) | 1957-07-26 | 1959-04-21 | Arlington Aluminum Co | Poster holder |
US3000481A (en) | 1958-04-23 | 1961-09-19 | Curtiss Wright Corp | Helical coil type clutches |
US2950556A (en) | 1958-11-19 | 1960-08-30 | William E Ford | Foldable frame |
US3019854A (en) | 1959-10-12 | 1962-02-06 | Waitus A O'bryant | Filter for heating and air conditioning ducts |
US3095120A (en) | 1959-11-12 | 1963-06-25 | Swift & Co | Pumping system for meat emulsions |
US3175291A (en) | 1961-02-03 | 1965-03-30 | Nardo Warder Entpr | Barbering shears |
US3135143A (en) | 1961-03-24 | 1964-06-02 | Neumann Karl Josef | Rolling mills of the type provided with a cooling bed and subsequent adjustment arrangements which include straightening and dividing means |
US3132713A (en) | 1961-05-25 | 1964-05-12 | Shure Bros | Microphone diaphragm |
US3240883A (en) | 1961-05-25 | 1966-03-15 | Shure Bros | Microphone |
US3143182A (en) | 1961-07-17 | 1964-08-04 | E J Mosher | Sound reproducers |
US3184801A (en) | 1962-04-02 | 1965-05-25 | Julian C Renfro | Trim unit for facilitating the installation of lightweight window units |
US3160225A (en) | 1962-04-18 | 1964-12-08 | Edward L Sechrist | Sound reproduction system |
US3161975A (en) | 1962-11-08 | 1964-12-22 | John L Mcmillan | Picture frame |
US3205601A (en) | 1963-06-11 | 1965-09-14 | Gawne Daniel | Display holder |
US3175871A (en) | 1963-10-11 | 1965-03-30 | Westinghouse Air Brake Co | Continual quick service valve device |
US3170882A (en) | 1963-11-04 | 1965-02-23 | Merck & Co Inc | Process for making semiconductors of predetermined resistivities |
US3239973A (en) | 1964-01-24 | 1966-03-15 | Johns Manville | Acoustical glass fiber panel with diaphragm action and controlled flow resistance |
US3906431A (en) | 1965-04-09 | 1975-09-16 | Us Navy | Search and track sonar system |
US3310901A (en) | 1965-06-15 | 1967-03-28 | Sarkisian Robert | Display holder |
US3321170A (en) | 1965-09-21 | 1967-05-23 | Earl F Vye | Magnetic adjustable pole piece strip heater clamp |
US3509290A (en) | 1966-05-03 | 1970-04-28 | Nippon Musical Instruments Mfg | Flat-plate type loudspeaker with frame mounted drivers |
DE1772445A1 (de) | 1968-05-16 | 1971-03-04 | Niezoldi & Kraemer Gmbh | Kamera mit eingebauten,in den Strahlengang des Aufnahmelichts bewegbaren Farbfiltern |
US3573399A (en) | 1968-08-14 | 1971-04-06 | Bell Telephone Labor Inc | Directional microphone |
AT284927B (de) | 1969-03-04 | 1970-10-12 | Eumig | Rohrrichtmikrophon |
US3605890A (en) | 1969-06-04 | 1971-09-20 | Chevron Res | Hydrogen production from a kerogen-depleted shale formation |
JPS5028944B1 (zh) | 1970-12-04 | 1975-09-19 | ||
US3857191A (en) | 1971-02-08 | 1974-12-31 | Talkies Usa Inc | Visual-audio device |
US3696885A (en) | 1971-08-19 | 1972-10-10 | Electronic Res Ass | Decorative loudspeakers |
US3755625A (en) | 1971-10-12 | 1973-08-28 | Bell Telephone Labor Inc | Multimicrophone loudspeaking telephone system |
JPS4867579U (zh) | 1971-11-27 | 1973-08-27 | ||
US3936606A (en) | 1971-12-07 | 1976-02-03 | Wanke Ronald L | Acoustic abatement method and apparatus |
US3828508A (en) | 1972-07-31 | 1974-08-13 | W Moeller | Tile device for joining permanent ceiling tile to removable ceiling tile |
US3895194A (en) | 1973-05-29 | 1975-07-15 | Thermo Electron Corp | Directional condenser electret microphone |
US3938617A (en) | 1974-01-17 | 1976-02-17 | Fort Enterprises, Limited | Speaker enclosure |
US3861713A (en) | 1974-01-23 | 1975-01-21 | Dale P Mckee | Retractile door step for motor homes |
JPS5215972B2 (zh) | 1974-02-28 | 1977-05-06 | ||
US4029170A (en) | 1974-09-06 | 1977-06-14 | B & P Enterprises, Inc. | Radial sound port speaker |
US3941638A (en) | 1974-09-18 | 1976-03-02 | Reginald Patrick Horky | Manufactured relief-sculptured sound grills (used for covering the sound producing side and/or front of most manufactured sound speaker enclosures) and the manufacturing process for the said grills |
US4212133A (en) | 1975-03-14 | 1980-07-15 | Lufkin Lindsey D | Picture frame vase |
US3992584A (en) | 1975-05-09 | 1976-11-16 | Dugan Daniel W | Automatic microphone mixer |
JPS51137507A (en) | 1975-05-21 | 1976-11-27 | Asano Tetsukoujiyo Kk | Printing machine |
US4007461A (en) | 1975-09-05 | 1977-02-08 | Field Operations Bureau Of The Federal Communications Commission | Antenna system for deriving cardiod patterns |
US4070547A (en) | 1976-01-08 | 1978-01-24 | Superscope, Inc. | One-point stereo microphone |
US4072821A (en) | 1976-05-10 | 1978-02-07 | Cbs Inc. | Microphone system for producing signals for quadraphonic reproduction |
JPS536565U (zh) | 1976-07-02 | 1978-01-20 | ||
US4032725A (en) | 1976-09-07 | 1977-06-28 | Motorola, Inc. | Speaker mounting |
US4096353A (en) | 1976-11-02 | 1978-06-20 | Cbs Inc. | Microphone system for producing signals for quadraphonic reproduction |
US4169219A (en) | 1977-03-30 | 1979-09-25 | Beard Terry D | Compander noise reduction method and apparatus |
FR2390864A1 (fr) | 1977-05-09 | 1978-12-08 | France Etat | Systeme d'audioconference par liaison telephonique |
US4237339A (en) | 1977-11-03 | 1980-12-02 | The Post Office | Audio teleconferencing |
USD255234S (en) | 1977-11-22 | 1980-06-03 | Ronald Wellward | Ceiling speaker |
US4131760A (en) | 1977-12-07 | 1978-12-26 | Bell Telephone Laboratories, Incorporated | Multiple microphone dereverberation system |
US4127156A (en) | 1978-01-03 | 1978-11-28 | Brandt James R | Burglar-proof screening |
USD256015S (en) | 1978-03-20 | 1980-07-22 | Epicure Products, Inc. | Loudspeaker mounting bracket |
DE2821294B2 (de) | 1978-05-16 | 1980-03-13 | Deutsche Texaco Ag, 2000 Hamburg | Phenolaldehydharz, Verfahren zu seiner Herstellung und seine Verwendung |
JPS54157617A (en) | 1978-05-31 | 1979-12-12 | Kyowa Electric & Chemical | Method of manufacturing cloth coated speaker box and material therefor |
US4198705A (en) | 1978-06-09 | 1980-04-15 | The Stoneleigh Trust, Donald P. Massa and Fred M. Dellorfano, Trustees | Directional energy receiving systems for use in the automatic indication of the direction of arrival of the received signal |
US4305141A (en) | 1978-06-09 | 1981-12-08 | The Stoneleigh Trust | Low-frequency directional sonar systems |
US4334740A (en) | 1978-09-12 | 1982-06-15 | Polaroid Corporation | Receiving system having pre-selected directional response |
JPS5546033A (en) | 1978-09-27 | 1980-03-31 | Nissan Motor Co Ltd | Electronic control fuel injection system |
JPS5910119B2 (ja) | 1979-04-26 | 1984-03-07 | 日本ビクター株式会社 | 可変指向性マイクロホン |
US4254417A (en) | 1979-08-20 | 1981-03-03 | The United States Of America As Represented By The Secretary Of The Navy | Beamformer for arrays with rotational symmetry |
DE2941485A1 (de) | 1979-10-10 | 1981-04-23 | Hans-Josef 4300 Essen Hasenäcker | Hoererlose fernsprechzelle |
SE418665B (sv) | 1979-10-16 | 1981-06-15 | Gustav Georg Arne Bolin | Sett att forbettra akustiken i en lokal |
JPS5685173U (zh) | 1979-11-30 | 1981-07-08 | ||
US4311874A (en) | 1979-12-17 | 1982-01-19 | Bell Telephone Laboratories, Incorporated | Teleconference microphone arrays |
US4330691A (en) | 1980-01-31 | 1982-05-18 | The Futures Group, Inc. | Integral ceiling tile-loudspeaker system |
US4296280A (en) | 1980-03-17 | 1981-10-20 | Richie Ronald A | Wall mounted speaker system |
JPS5710598A (en) | 1980-06-20 | 1982-01-20 | Sony Corp | Transmitting circuit of microphone output |
US4373191A (en) | 1980-11-10 | 1983-02-08 | Motorola Inc. | Absolute magnitude difference function generator for an LPC system |
US4393631A (en) | 1980-12-03 | 1983-07-19 | Krent Edward D | Three-dimensional acoustic ceiling tile system for dispersing long wave sound |
US4365449A (en) | 1980-12-31 | 1982-12-28 | James P. Liautaud | Honeycomb framework system for drop ceilings |
AT371969B (de) | 1981-11-19 | 1983-08-25 | Akg Akustische Kino Geraete | Mikrophon zur stereophonischen aufnahme akustischer ereignisse |
US4436966A (en) | 1982-03-15 | 1984-03-13 | Darome, Inc. | Conference microphone unit |
US4449238A (en) | 1982-03-25 | 1984-05-15 | Bell Telephone Laboratories, Incorporated | Voice-actuated switching system |
US4429850A (en) | 1982-03-25 | 1984-02-07 | Uniweb, Inc. | Display panel shelf bracket |
US4521908A (en) | 1982-09-01 | 1985-06-04 | Victor Company Of Japan, Limited | Phased-array sound pickup apparatus having no unwanted response pattern |
US4489442A (en) | 1982-09-30 | 1984-12-18 | Shure Brothers, Inc. | Sound actuated microphone system |
US4485484A (en) | 1982-10-28 | 1984-11-27 | At&T Bell Laboratories | Directable microphone system |
US4518826A (en) | 1982-12-22 | 1985-05-21 | Mountain Systems, Inc. | Vandal-proof communication system |
FR2542549B1 (fr) | 1983-03-09 | 1987-09-04 | Lemaitre Guy | Diffuseur acoustique en angle plan |
US4669108A (en) | 1983-05-23 | 1987-05-26 | Teleconferencing Systems International Inc. | Wireless hands-free conference telephone system |
USD285067S (en) | 1983-07-18 | 1986-08-12 | Pascal Delbuck | Loudspeaker |
CA1202713A (en) | 1984-03-16 | 1986-04-01 | Beverley W. Gumb | Transmitter assembly for a telephone handset |
US4712231A (en) | 1984-04-06 | 1987-12-08 | Shure Brothers, Inc. | Teleconference system |
US4696043A (en) | 1984-08-24 | 1987-09-22 | Victor Company Of Japan, Ltd. | Microphone apparatus having a variable directivity pattern |
US4675906A (en) | 1984-12-20 | 1987-06-23 | At&T Company, At&T Bell Laboratories | Second order toroidal microphone |
US4658425A (en) | 1985-04-19 | 1987-04-14 | Shure Brothers, Inc. | Microphone actuation control system suitable for teleconference systems |
US4815132A (en) | 1985-08-30 | 1989-03-21 | Kabushiki Kaisha Toshiba | Stereophonic voice signal transmission system |
CA1236607A (en) | 1985-09-23 | 1988-05-10 | Northern Telecom Limited | Microphone arrangement |
US4625827A (en) | 1985-10-16 | 1986-12-02 | Crown International, Inc. | Microphone windscreen |
US4653102A (en) | 1985-11-05 | 1987-03-24 | Position Orientation Systems | Directional microphone system |
US4693174A (en) | 1986-05-09 | 1987-09-15 | Anderson Philip K | Air deflecting means for use with air outlets defined in dropped ceiling constructions |
US4860366A (en) | 1986-07-31 | 1989-08-22 | Nec Corporation | Teleconference system using expanders for emphasizing a desired signal with respect to undesired signals |
JP2518823B2 (ja) | 1986-08-21 | 1996-07-31 | 日本放送協会 | 広帯域指向性収音装置 |
US4741038A (en) | 1986-09-26 | 1988-04-26 | American Telephone And Telegraph Company, At&T Bell Laboratories | Sound location arrangement |
JPH0657079B2 (ja) | 1986-12-08 | 1994-07-27 | 日本電信電話株式会社 | 複数対のマイクロホン出力の位相切替収音装置 |
US4862507A (en) | 1987-01-16 | 1989-08-29 | Shure Brothers, Inc. | Microphone acoustical polar pattern converter |
US4873005A (en) | 1987-02-04 | 1989-10-10 | Morton Thiokol, Inc. | Extrusion lubricant comprising a hydrocarbon wax, fatty acid salt and an organic mercaptan |
NL8701633A (nl) | 1987-07-10 | 1989-02-01 | Philips Nv | Digitale echocompensator. |
US4805730A (en) | 1988-01-11 | 1989-02-21 | Peavey Electronics Corporation | Loudspeaker enclosure |
US4866868A (en) | 1988-02-24 | 1989-09-19 | Ntg Industries, Inc. | Display device |
JPH01260967A (ja) | 1988-04-11 | 1989-10-18 | Nec Corp | 多チヤネル信号用音声会議装置 |
US4969197A (en) | 1988-06-10 | 1990-11-06 | Murata Manufacturing | Piezoelectric speaker |
JP2748417B2 (ja) | 1988-07-30 | 1998-05-06 | ソニー株式会社 | マイクロホン装置 |
US4881135A (en) | 1988-09-23 | 1989-11-14 | Heilweil Jordan B | Concealed audio-video apparatus for recording conferences and meetings |
US4928312A (en) | 1988-10-17 | 1990-05-22 | Amel Hill | Acoustic transducer |
US4888807A (en) | 1989-01-18 | 1989-12-19 | Audio-Technica U.S., Inc. | Variable pattern microphone system |
JPH0728470B2 (ja) | 1989-02-03 | 1995-03-29 | 松下電器産業株式会社 | アレイマイクロホン |
USD329239S (en) | 1989-06-26 | 1992-09-08 | PRS, Inc. | Recessed speaker grill |
US4923032A (en) | 1989-07-21 | 1990-05-08 | Nuernberger Mark A | Ceiling panel sound system |
US5000286A (en) | 1989-08-15 | 1991-03-19 | Klipsch And Associates, Inc. | Modular loudspeaker system |
USD324780S (en) | 1989-09-27 | 1992-03-24 | Sebesta Walter C | Combined picture frame and golf ball rack |
US5121426A (en) | 1989-12-22 | 1992-06-09 | At&T Bell Laboratories | Loudspeaking telephone station including directional microphone |
US5038935A (en) | 1990-02-21 | 1991-08-13 | Uniek Plastics, Inc. | Storage and display unit for photographic prints |
US5088574A (en) | 1990-04-16 | 1992-02-18 | Kertesz Iii Emery | Ceiling speaker system |
AT407815B (de) | 1990-07-13 | 2001-06-25 | Viennatone Gmbh | Hörgerät |
JP2518823Y2 (ja) | 1990-11-20 | 1996-11-27 | 日本メクトロン株式会社 | 地板一体型逆fプリントアンテナ |
US5550925A (en) | 1991-01-07 | 1996-08-27 | Canon Kabushiki Kaisha | Sound processing device |
JP2792252B2 (ja) | 1991-03-14 | 1998-09-03 | 日本電気株式会社 | 多チャンネルエコー除去方法および装置 |
US5224170A (en) | 1991-04-15 | 1993-06-29 | Hewlett-Packard Company | Time domain compensation for transducer mismatch |
US5204907A (en) | 1991-05-28 | 1993-04-20 | Motorola, Inc. | Noise cancelling microphone and boot mounting arrangement |
US5353279A (en) | 1991-08-29 | 1994-10-04 | Nec Corporation | Echo canceler |
USD345346S (en) | 1991-10-18 | 1994-03-22 | International Business Machines Corp. | Pen-based computer |
US5189701A (en) | 1991-10-25 | 1993-02-23 | Micom Communications Corp. | Voice coder/decoder and methods of coding/decoding |
USD340718S (en) | 1991-12-20 | 1993-10-26 | Square D Company | Speaker frame assembly |
US5289544A (en) | 1991-12-31 | 1994-02-22 | Audiological Engineering Corporation | Method and apparatus for reducing background noise in communication systems and for enhancing binaural hearing systems for the hearing impaired |
US5322979A (en) | 1992-01-08 | 1994-06-21 | Cassity Terry A | Speaker cover assembly |
JP2792311B2 (ja) | 1992-01-31 | 1998-09-03 | 日本電気株式会社 | 多チャンネルエコー除去方法および装置 |
US5297210A (en) | 1992-04-10 | 1994-03-22 | Shure Brothers, Incorporated | Microphone actuation control system |
USD345379S (en) | 1992-07-06 | 1994-03-22 | Canadian Moulded Products Inc. | Card holder |
US5383293A (en) | 1992-08-27 | 1995-01-24 | Royal; John D. | Picture frame arrangement |
JPH06104970A (ja) | 1992-09-18 | 1994-04-15 | Fujitsu Ltd | 拡声電話機 |
US5307405A (en) | 1992-09-25 | 1994-04-26 | Qualcomm Incorporated | Network echo canceller |
US5400413A (en) | 1992-10-09 | 1995-03-21 | Dana Innovations | Pre-formed speaker grille cloth |
IT1257164B (it) | 1992-10-23 | 1996-01-05 | Ist Trentino Di Cultura | Procedimento per la localizzazione di un parlatore e l'acquisizione diun messaggio vocale, e relativo sistema. |
JP2508574B2 (ja) | 1992-11-10 | 1996-06-19 | 日本電気株式会社 | 多チャンネルエコ―除去装置 |
US5406638A (en) | 1992-11-25 | 1995-04-11 | Hirschhorn; Bruce D. | Automated conference system |
US5359374A (en) | 1992-12-14 | 1994-10-25 | Talking Frames Corp. | Talking picture frames |
US5335011A (en) | 1993-01-12 | 1994-08-02 | Bell Communications Research, Inc. | Sound localization system for teleconferencing using self-steering microphone arrays |
US5329593A (en) | 1993-05-10 | 1994-07-12 | Lazzeroni John J | Noise cancelling microphone |
US5555447A (en) | 1993-05-14 | 1996-09-10 | Motorola, Inc. | Method and apparatus for mitigating speech loss in a communication system |
JPH084243B2 (ja) | 1993-05-31 | 1996-01-17 | 日本電気株式会社 | 多チャンネルエコー除去方法および装置 |
DE69428119T2 (de) | 1993-07-07 | 2002-03-21 | Picturetel Corp., Peabody | Verringerung des hintergrundrauschens zur sprachverbesserung |
US5657393A (en) | 1993-07-30 | 1997-08-12 | Crow; Robert P. | Beamed linear array microphone system |
DE4330243A1 (de) | 1993-09-07 | 1995-03-09 | Philips Patentverwaltung | Sprachverarbeitungseinrichtung |
US5525765A (en) | 1993-09-08 | 1996-06-11 | Wenger Corporation | Acoustical virtual environment |
US5664021A (en) | 1993-10-05 | 1997-09-02 | Picturetel Corporation | Microphone system for teleconferencing system |
US5473701A (en) | 1993-11-05 | 1995-12-05 | At&T Corp. | Adaptive microphone array |
USD363045S (en) | 1994-03-29 | 1995-10-10 | Phillips Verla D | Wall plaque |
JPH07336790A (ja) | 1994-06-13 | 1995-12-22 | Nec Corp | マイクロホンシステム |
US5509634A (en) | 1994-09-28 | 1996-04-23 | Femc Ltd. | Self adjusting glass shelf label holder |
JP3397269B2 (ja) | 1994-10-26 | 2003-04-14 | 日本電信電話株式会社 | 多チャネル反響消去方法 |
NL9401860A (nl) | 1994-11-08 | 1996-06-03 | Duran Bv | Luidsprekersysteem met bestuurde richtinggevoeligheid. |
US5633936A (en) | 1995-01-09 | 1997-05-27 | Texas Instruments Incorporated | Method and apparatus for detecting a near-end speech signal |
US5645257A (en) | 1995-03-31 | 1997-07-08 | Metro Industries, Inc. | Adjustable support apparatus |
USD382118S (en) | 1995-04-17 | 1997-08-12 | Kimberly-Clark Tissue Company | Paper towel |
US6731334B1 (en) | 1995-07-31 | 2004-05-04 | Forgent Networks, Inc. | Automatic voice tracking camera system and method of operation |
WO1997008896A1 (en) | 1995-08-23 | 1997-03-06 | Scientific-Atlanta, Inc. | Open area security system |
US6215881B1 (en) | 1995-09-02 | 2001-04-10 | New Transducers Limited | Ceiling tile loudspeaker |
US6285770B1 (en) | 1995-09-02 | 2001-09-04 | New Transducers Limited | Noticeboards incorporating loudspeakers |
US6198831B1 (en) | 1995-09-02 | 2001-03-06 | New Transducers Limited | Panel-form loudspeakers |
KR19990044067A (ko) | 1995-09-02 | 1999-06-25 | 에이지마. 헨리 | 벤딩기계 |
CA2186416C (en) | 1995-09-26 | 2000-04-18 | Suehiro Shimauchi | Method and apparatus for multi-channel acoustic echo cancellation |
US5766702A (en) | 1995-10-05 | 1998-06-16 | Lin; Chii-Hsiung | Laminated ornamental glass |
US5768263A (en) | 1995-10-20 | 1998-06-16 | Vtel Corporation | Method for talk/listen determination and multipoint conferencing system using such method |
US6125179A (en) | 1995-12-13 | 2000-09-26 | 3Com Corporation | Echo control device with quick response to sudden echo-path change |
US6144746A (en) | 1996-02-09 | 2000-11-07 | New Transducers Limited | Loudspeakers comprising panel-form acoustic radiating elements |
US5888412A (en) | 1996-03-04 | 1999-03-30 | Motorola, Inc. | Method for making a sculptured diaphragm |
US5673327A (en) | 1996-03-04 | 1997-09-30 | Julstrom; Stephen D. | Microphone mixer |
US5706344A (en) | 1996-03-29 | 1998-01-06 | Digisonix, Inc. | Acoustic echo cancellation in an integrated audio and telecommunication system |
US5717171A (en) | 1996-05-09 | 1998-02-10 | The Solar Corporation | Acoustical cabinet grille frame |
US5848146A (en) | 1996-05-10 | 1998-12-08 | Rane Corporation | Audio system for conferencing/presentation room |
US6205224B1 (en) | 1996-05-17 | 2001-03-20 | The Boeing Company | Circularly symmetric, zero redundancy, planar array having broad frequency range applications |
US5715319A (en) | 1996-05-30 | 1998-02-03 | Picturetel Corporation | Method and apparatus for steerable and endfire superdirective microphone arrays with reduced analog-to-digital converter and computational requirements |
US5796819A (en) | 1996-07-24 | 1998-08-18 | Ericsson Inc. | Echo canceller for non-linear circuits |
KR100212314B1 (ko) | 1996-11-06 | 1999-08-02 | 윤종용 | 액정 디스플레이 장치의 스탠드구조 |
US5888439A (en) | 1996-11-14 | 1999-03-30 | The Solar Corporation | Method of molding an acoustical cabinet grille frame |
JP3797751B2 (ja) | 1996-11-27 | 2006-07-19 | 富士通株式会社 | マイクロホンシステム |
US6151399A (en) | 1996-12-31 | 2000-11-21 | Etymotic Research, Inc. | Directional microphone system providing for ease of assembly and disassembly |
US6301357B1 (en) | 1996-12-31 | 2001-10-09 | Ericsson Inc. | AC-center clipper for noise and echo suppression in a communications system |
US5878147A (en) | 1996-12-31 | 1999-03-02 | Etymotic Research, Inc. | Directional microphone assembly |
US7881486B1 (en) | 1996-12-31 | 2011-02-01 | Etymotic Research, Inc. | Directional microphone assembly |
DE19704296C2 (de) | 1997-02-06 | 2001-03-01 | Leica Microsystems | Verfahren und Vorrichtung zur Schrittmotoransteuerung |
US5870482A (en) | 1997-02-25 | 1999-02-09 | Knowles Electronics, Inc. | Miniature silicon condenser microphone |
JP3226825B2 (ja) | 1997-02-28 | 2001-11-05 | 潔 坂田 | 駐車場管理方法 |
JP3175622B2 (ja) | 1997-03-03 | 2001-06-11 | ヤマハ株式会社 | 演奏音場制御装置 |
USD392977S (en) | 1997-03-11 | 1998-03-31 | LG Fosta Ltd. | Speaker |
JPH10260589A (ja) | 1997-03-18 | 1998-09-29 | Sharp Corp | 画像形成装置 |
JPH10260967A (ja) | 1997-03-19 | 1998-09-29 | Toshiba Corp | Www用htmlファイル作成方法及び装置 |
US6041127A (en) | 1997-04-03 | 2000-03-21 | Lucent Technologies Inc. | Steerable and variable first-order differential microphone array |
WO1998047291A2 (en) | 1997-04-16 | 1998-10-22 | Isight Ltd. | Video teleconferencing |
FR2762467B1 (fr) | 1997-04-16 | 1999-07-02 | France Telecom | Procede d'annulation d'echo acoustique multi-voies et annuleur d'echo acoustique multi-voies |
JPH10336790A (ja) | 1997-06-04 | 1998-12-18 | Sony Corp | スピーカ |
US6633647B1 (en) | 1997-06-30 | 2003-10-14 | Hewlett-Packard Development Company, L.P. | Method of custom designing directional responses for a microphone of a portable computer |
USD394061S (en) | 1997-07-01 | 1998-05-05 | Windsor Industries, Inc. | Combined computer-style radio and alarm clock |
US6137887A (en) | 1997-09-16 | 2000-10-24 | Shure Incorporated | Directional microphone system |
NL1007321C2 (nl) | 1997-10-20 | 1999-04-21 | Univ Delft Tech | Gehoorinrichting voor het verbeteren van de verstaanbaarheid voor slechthorenden. |
US6563803B1 (en) | 1997-11-26 | 2003-05-13 | Qualcomm Incorporated | Acoustic echo canceller |
US6039457A (en) | 1997-12-17 | 2000-03-21 | Intex Exhibits International, L.L.C. | Light bracket |
US6393129B1 (en) | 1998-01-07 | 2002-05-21 | American Technology Corporation | Paper structures for speaker transducers |
US6505057B1 (en) | 1998-01-23 | 2003-01-07 | Digisonix Llc | Integrated vehicle voice enhancement system and hands-free cellular telephone system |
EP1057164A1 (en) | 1998-02-20 | 2000-12-06 | Display Edge Technology, Ltd. | Shelf-edge display system |
US6895093B1 (en) | 1998-03-03 | 2005-05-17 | Texas Instruments Incorporated | Acoustic echo-cancellation system |
DE69908463T2 (de) | 1998-03-05 | 2004-05-13 | Nippon Telegraph And Telephone Corp. | Verfahren und Einrichtung zur mehrkanaligen Kompensation eines akustischen Echos |
US7245710B1 (en) | 1998-04-08 | 2007-07-17 | British Telecommunications Public Limited Company | Teleconferencing system |
US6173059B1 (en) | 1998-04-24 | 2001-01-09 | Gentner Communications Corporation | Teleconferencing system with visual feedback |
JP4641620B2 (ja) | 1998-05-11 | 2011-03-02 | エヌエックスピー ビー ヴィ | ピッチ検出の精密化 |
US6442272B1 (en) | 1998-05-26 | 2002-08-27 | Tellabs, Inc. | Voice conferencing system having local sound amplification |
US6266427B1 (en) | 1998-06-19 | 2001-07-24 | Mcdonnell Douglas Corporation | Damped structural panel and method of making same |
USD416315S (en) | 1998-09-01 | 1999-11-09 | Fujitsu General Limited | Air conditioner |
USD424538S (en) | 1998-09-14 | 2000-05-09 | Fujitsu General Limited | Display device |
US6049607A (en) | 1998-09-18 | 2000-04-11 | Lamar Signal Processing | Interference canceling method and apparatus |
US6424635B1 (en) | 1998-11-10 | 2002-07-23 | Nortel Networks Limited | Adaptive nonlinear processor for echo cancellation |
US6526147B1 (en) | 1998-11-12 | 2003-02-25 | Gn Netcom A/S | Microphone array with high directivity |
US7068801B1 (en) | 1998-12-18 | 2006-06-27 | National Research Council Of Canada | Microphone array diffracting structure |
KR100298300B1 (ko) | 1998-12-29 | 2002-05-01 | 강상훈 | 포만트유사도측정에의한피솔라를이용한음성파형부호화방식 |
US6507659B1 (en) | 1999-01-25 | 2003-01-14 | Cascade Audio, Inc. | Microphone apparatus for producing signals for surround reproduction |
US6035962A (en) | 1999-02-24 | 2000-03-14 | Lin; Chih-Hsiung | Easily-combinable and movable speaker case |
US6724829B1 (en) | 1999-03-18 | 2004-04-20 | Conexant Systems, Inc. | Automatic power control in a data transmission system |
US7423983B1 (en) | 1999-09-20 | 2008-09-09 | Broadcom Corporation | Voice and data exchange over a packet based network |
US7558381B1 (en) | 1999-04-22 | 2009-07-07 | Agere Systems Inc. | Retrieval of deleted voice messages in voice messaging system |
JP3789685B2 (ja) * | 1999-07-02 | 2006-06-28 | 富士通株式会社 | マイクロホンアレイ装置 |
US6889183B1 (en) | 1999-07-15 | 2005-05-03 | Nortel Networks Limited | Apparatus and method of regenerating a lost audio segment |
US20050286729A1 (en) | 1999-07-23 | 2005-12-29 | George Harwood | Flat speaker with a flat membrane diaphragm |
EP1224037B1 (en) | 1999-09-29 | 2007-10-31 | 1... Limited | Method and apparatus to direct sound using an array of output transducers |
USD432518S (en) | 1999-10-01 | 2000-10-24 | Keiko Muto | Audio system |
US6868377B1 (en) | 1999-11-23 | 2005-03-15 | Creative Technology Ltd. | Multiband phase-vocoder for the modification of audio or speech signals |
US6704423B2 (en) | 1999-12-29 | 2004-03-09 | Etymotic Research, Inc. | Hearing aid assembly having external directional microphone |
US6449593B1 (en) | 2000-01-13 | 2002-09-10 | Nokia Mobile Phones Ltd. | Method and system for tracking human speakers |
US20020140633A1 (en) | 2000-02-03 | 2002-10-03 | Canesta, Inc. | Method and system to present immersion virtual simulations using three-dimensional measurement |
US6488367B1 (en) | 2000-03-14 | 2002-12-03 | Eastman Kodak Company | Electroformed metal diaphragm |
US6741720B1 (en) | 2000-04-19 | 2004-05-25 | Russound/Fmp, Inc. | In-wall loudspeaker system |
US6993126B1 (en) | 2000-04-28 | 2006-01-31 | Clearsonics Pty Ltd | Apparatus and method for detecting far end speech |
EP1287672B1 (en) | 2000-05-26 | 2007-08-15 | Koninklijke Philips Electronics N.V. | Method and device for acoustic echo cancellation combined with adaptive beamforming |
AU783014B2 (en) | 2000-06-15 | 2005-09-15 | Valcom, Inc | Lay-in ceiling speaker |
US6329908B1 (en) | 2000-06-23 | 2001-12-11 | Armstrong World Industries, Inc. | Addressable speaker system |
US6622030B1 (en) | 2000-06-29 | 2003-09-16 | Ericsson Inc. | Echo suppression using adaptive gain based on residual echo energy |
US8019091B2 (en) | 2000-07-19 | 2011-09-13 | Aliphcom, Inc. | Voice activity detector (VAD) -based multiple-microphone acoustic noise suppression |
USD453016S1 (en) | 2000-07-20 | 2002-01-22 | B & W Loudspeakers Limited | Loudspeaker unit |
US6386315B1 (en) | 2000-07-28 | 2002-05-14 | Awi Licensing Company | Flat panel sound radiator and assembly system |
US6481173B1 (en) | 2000-08-17 | 2002-11-19 | Awi Licensing Company | Flat panel sound radiator with special edge details |
US6510919B1 (en) | 2000-08-30 | 2003-01-28 | Awi Licensing Company | Facing system for a flat panel radiator |
DE60010457T2 (de) | 2000-09-02 | 2006-03-02 | Nokia Corp. | Vorrichtung und Verfahren zur Verarbeitung eines Signales emittiert von einer Zielsignalquelle in einer geräuschvollen Umgebung |
US6968064B1 (en) | 2000-09-29 | 2005-11-22 | Forgent Networks, Inc. | Adaptive thresholds in acoustic echo canceller for use during double talk |
AU2002211523A1 (en) | 2000-10-05 | 2002-04-15 | Etymotic Research, Inc. | Directional microphone assembly |
GB2367730B (en) | 2000-10-06 | 2005-04-27 | Mitel Corp | Method and apparatus for minimizing far-end speech effects in hands-free telephony systems using acoustic beamforming |
US6963649B2 (en) | 2000-10-24 | 2005-11-08 | Adaptive Technologies, Inc. | Noise cancelling microphone |
US6931138B2 (en) | 2000-10-25 | 2005-08-16 | Matsushita Electric Industrial Co., Ltd | Zoom microphone device |
US6704422B1 (en) | 2000-10-26 | 2004-03-09 | Widex A/S | Method for controlling the directionality of the sound receiving characteristic of a hearing aid a hearing aid for carrying out the method |
US6757393B1 (en) | 2000-11-03 | 2004-06-29 | Marie L. Spitzer | Wall-hanging entertainment system |
JP4110734B2 (ja) | 2000-11-27 | 2008-07-02 | 沖電気工業株式会社 | 音声パケット通信の品質制御装置 |
US7092539B2 (en) | 2000-11-28 | 2006-08-15 | University Of Florida Research Foundation, Inc. | MEMS based acoustic array |
US7092882B2 (en) | 2000-12-06 | 2006-08-15 | Ncr Corporation | Noise suppression in beam-steered microphone array |
JP4734714B2 (ja) | 2000-12-22 | 2011-07-27 | ヤマハ株式会社 | 収音再生方法およびその装置 |
US6768795B2 (en) | 2001-01-11 | 2004-07-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Side-tone control within a telecommunication instrument |
ES2348835T3 (es) | 2001-01-23 | 2010-12-15 | Koninklijke Philips Electronics N.V. | Filtro multicanal asimã‰trico. |
USD474939S1 (en) | 2001-02-20 | 2003-05-27 | Wouter De Neubourg | Mug I |
US20020126861A1 (en) | 2001-03-12 | 2002-09-12 | Chester Colby | Audio expander |
US20020131580A1 (en) | 2001-03-16 | 2002-09-19 | Shure Incorporated | Solid angle cross-talk cancellation for beamforming arrays |
US7515719B2 (en) | 2001-03-27 | 2009-04-07 | Cambridge Mechatronics Limited | Method and apparatus to create a sound field |
JP3506138B2 (ja) | 2001-07-11 | 2004-03-15 | ヤマハ株式会社 | 複数チャンネルエコーキャンセル方法、複数チャンネル音声伝送方法、ステレオエコーキャンセラ、ステレオ音声伝送装置および伝達関数演算装置 |
TW484478U (en) | 2001-07-16 | 2002-04-21 | Shi-Yuan Guo | Structure of knife grinder |
JP2004537233A (ja) | 2001-07-20 | 2004-12-09 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | エコー抑圧回路及びラウドスピーカ・ビームフォーマを有する音響補強システム |
WO2003010995A2 (en) | 2001-07-20 | 2003-02-06 | Koninklijke Philips Electronics N.V. | Sound reinforcement system having an multi microphone echo suppressor as post processor |
US7013267B1 (en) | 2001-07-30 | 2006-03-14 | Cisco Technology, Inc. | Method and apparatus for reconstructing voice information |
US7068796B2 (en) | 2001-07-31 | 2006-06-27 | Moorer James A | Ultra-directional microphones |
JP3727258B2 (ja) | 2001-08-13 | 2005-12-14 | 富士通株式会社 | エコー抑制処理システム |
GB2379148A (en) | 2001-08-21 | 2003-02-26 | Mitel Knowledge Corp | Voice activity detection |
GB0121206D0 (en) | 2001-08-31 | 2001-10-24 | Mitel Knowledge Corp | System and method of indicating and controlling sound pickup direction and location in a teleconferencing system |
US7298856B2 (en) | 2001-09-05 | 2007-11-20 | Nippon Hoso Kyokai | Chip microphone and method of making same |
JP2003087890A (ja) | 2001-09-14 | 2003-03-20 | Sony Corp | 音声入力装置及び音声入力方法 |
US20030059061A1 (en) | 2001-09-14 | 2003-03-27 | Sony Corporation | Audio input unit, audio input method and audio input and output unit |
USD469090S1 (en) | 2001-09-17 | 2003-01-21 | Sharp Kabushiki Kaisha | Monitor for a computer |
JP3568922B2 (ja) | 2001-09-20 | 2004-09-22 | 三菱電機株式会社 | エコー処理装置 |
US7065224B2 (en) | 2001-09-28 | 2006-06-20 | Sonionmicrotronic Nederland B.V. | Microphone for a hearing aid or listening device with improved internal damping and foreign material protection |
US7120269B2 (en) | 2001-10-05 | 2006-10-10 | Lowell Manufacturing Company | Lay-in tile speaker system |
US7239714B2 (en) | 2001-10-09 | 2007-07-03 | Sonion Nederland B.V. | Microphone having a flexible printed circuit board for mounting components |
GB0124352D0 (en) | 2001-10-11 | 2001-11-28 | 1 Ltd | Signal processing device for acoustic transducer array |
CA2359771A1 (en) | 2001-10-22 | 2003-04-22 | Dspfactory Ltd. | Low-resource real-time audio synthesis system and method |
JP4282260B2 (ja) | 2001-11-20 | 2009-06-17 | 株式会社リコー | エコーキャンセラ |
US6665971B2 (en) | 2001-11-27 | 2003-12-23 | Fast Industries, Ltd. | Label holder with dust cover |
AU2002365352A1 (en) | 2001-11-27 | 2003-06-10 | Corporation For National Research Initiatives | A miniature condenser microphone and fabrication method therefor |
US20030107478A1 (en) | 2001-12-06 | 2003-06-12 | Hendricks Richard S. | Architectural sound enhancement system |
US7130430B2 (en) | 2001-12-18 | 2006-10-31 | Milsap Jeffrey P | Phased array sound system |
US6592237B1 (en) | 2001-12-27 | 2003-07-15 | John M. Pledger | Panel frame to draw air around light fixtures |
US20030122777A1 (en) | 2001-12-31 | 2003-07-03 | Grover Andrew S. | Method and apparatus for configuring a computer system based on user distance |
AU2003210624A1 (en) | 2002-01-18 | 2003-07-30 | Polycom, Inc. | Digital linking of multiple microphone systems |
US8098844B2 (en) | 2002-02-05 | 2012-01-17 | Mh Acoustics, Llc | Dual-microphone spatial noise suppression |
WO2007106399A2 (en) | 2006-03-10 | 2007-09-20 | Mh Acoustics, Llc | Noise-reducing directional microphone array |
US7130309B2 (en) | 2002-02-20 | 2006-10-31 | Intel Corporation | Communication device with dynamic delay compensation and method for communicating voice over a packet-switched network |
DE10208465A1 (de) | 2002-02-27 | 2003-09-18 | Bsh Bosch Siemens Hausgeraete | Elektrisches Gerät, insbesondere Dunstabzugshaube |
US20030161485A1 (en) | 2002-02-27 | 2003-08-28 | Shure Incorporated | Multiple beam automatic mixing microphone array processing via speech detection |
US20030169888A1 (en) | 2002-03-08 | 2003-09-11 | Nikolas Subotic | Frequency dependent acoustic beam forming and nulling |
DK174558B1 (da) | 2002-03-15 | 2003-06-02 | Bruel & Kjaer Sound & Vibratio | Stråleformende transducer-antennesystem |
ITMI20020566A1 (it) | 2002-03-18 | 2003-09-18 | Daniele Ramenzoni | Dispositivo per captare movimenti anche piccoli nell'aria e nei fluidi adatto per applicazioni cibernetiche e di laboratorio come trasduttor |
US7245733B2 (en) | 2002-03-20 | 2007-07-17 | Siemens Hearing Instruments, Inc. | Hearing instrument microphone arrangement with improved sensitivity |
US7518737B2 (en) | 2002-03-29 | 2009-04-14 | Georgia Tech Research Corp. | Displacement-measuring optical device with orifice |
ITBS20020043U1 (it) | 2002-04-12 | 2003-10-13 | Flos Spa | Giunto per il collegamento meccanico e elettrico di apparecchi di illuminazione in linea e/o ad angolo |
US6912178B2 (en) | 2002-04-15 | 2005-06-28 | Polycom, Inc. | System and method for computing a location of an acoustic source |
US20030198339A1 (en) | 2002-04-19 | 2003-10-23 | Roy Kenneth P. | Enhanced sound processing system for use with sound radiators |
US20030202107A1 (en) | 2002-04-30 | 2003-10-30 | Slattery E. Michael | Automated camera view control system |
US7852369B2 (en) | 2002-06-27 | 2010-12-14 | Microsoft Corp. | Integrated design for omni-directional camera and microphone array |
US6882971B2 (en) | 2002-07-18 | 2005-04-19 | General Instrument Corporation | Method and apparatus for improving listener differentiation of talkers during a conference call |
GB2393601B (en) | 2002-07-19 | 2005-09-21 | 1 Ltd | Digital loudspeaker system |
US8947347B2 (en) | 2003-08-27 | 2015-02-03 | Sony Computer Entertainment Inc. | Controlling actions in a video game unit |
US7050576B2 (en) | 2002-08-20 | 2006-05-23 | Texas Instruments Incorporated | Double talk, NLP and comfort noise |
JP4813796B2 (ja) | 2002-09-17 | 2011-11-09 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 信号を合成するための方法、記憶媒体及びコンピュータシステム |
WO2004032568A1 (en) | 2002-10-01 | 2004-04-15 | Donnelly Corporation | Microphone system for vehicle |
US7106876B2 (en) | 2002-10-15 | 2006-09-12 | Shure Incorporated | Microphone for simultaneous noise sensing and speech pickup |
US20080056517A1 (en) | 2002-10-18 | 2008-03-06 | The Regents Of The University Of California | Dynamic binaural sound capture and reproduction in focued or frontal applications |
US7003099B1 (en) | 2002-11-15 | 2006-02-21 | Fortmedia, Inc. | Small array microphone for acoustic echo cancellation and noise suppression |
US7672445B1 (en) | 2002-11-15 | 2010-03-02 | Fortemedia, Inc. | Method and system for nonlinear echo suppression |
US6990193B2 (en) | 2002-11-29 | 2006-01-24 | Mitel Knowledge Corporation | Method of acoustic echo cancellation in full-duplex hands free audio conferencing with spatial directivity |
GB2395878A (en) | 2002-11-29 | 2004-06-02 | Mitel Knowledge Corp | Method of capturing constant echo path information using default coefficients |
US7359504B1 (en) | 2002-12-03 | 2008-04-15 | Plantronics, Inc. | Method and apparatus for reducing echo and noise |
GB0229059D0 (en) | 2002-12-12 | 2003-01-15 | Mitel Knowledge Corp | Method of broadband constant directivity beamforming for non linear and non axi-symmetric sensor arrays embedded in an obstacle |
US7333476B2 (en) | 2002-12-23 | 2008-02-19 | Broadcom Corporation | System and method for operating a packet voice far-end echo cancellation system |
KR100480789B1 (ko) | 2003-01-17 | 2005-04-06 | 삼성전자주식회사 | 피드백 구조를 이용한 적응적 빔 형성방법 및 장치 |
GB2397990A (en) | 2003-01-31 | 2004-08-04 | Mitel Networks Corp | Echo cancellation/suppression and double-talk detection in communication paths |
USD489707S1 (en) | 2003-02-17 | 2004-05-11 | Pioneer Corporation | Speaker |
GB0304126D0 (en) | 2003-02-24 | 2003-03-26 | 1 Ltd | Sound beam loudspeaker system |
KR100493172B1 (ko) | 2003-03-06 | 2005-06-02 | 삼성전자주식회사 | 마이크로폰 어레이 구조, 이를 이용한 일정한 지향성을갖는 빔 형성방법 및 장치와 음원방향 추정방법 및 장치 |
US20040240664A1 (en) | 2003-03-07 | 2004-12-02 | Freed Evan Lawrence | Full-duplex speakerphone |
US7466835B2 (en) | 2003-03-18 | 2008-12-16 | Sonion A/S | Miniature microphone with balanced termination |
US9099094B2 (en) | 2003-03-27 | 2015-08-04 | Aliphcom | Microphone array with rear venting |
US6988064B2 (en) | 2003-03-31 | 2006-01-17 | Motorola, Inc. | System and method for combined frequency-domain and time-domain pitch extraction for speech signals |
US7643641B2 (en) | 2003-05-09 | 2010-01-05 | Nuance Communications, Inc. | System for communication enhancement in a noisy environment |
US8724822B2 (en) | 2003-05-09 | 2014-05-13 | Nuance Communications, Inc. | Noisy environment communication enhancement system |
DE60325699D1 (de) | 2003-05-13 | 2009-02-26 | Harman Becker Automotive Sys | Verfahren und System zur adaptiven Kompensation von Mikrofonungleichheiten |
JP2004349806A (ja) | 2003-05-20 | 2004-12-09 | Nippon Telegr & Teleph Corp <Ntt> | 多チャネル音響エコー消去方法、その装置、そのプログラム及びその記録媒体 |
US6993145B2 (en) | 2003-06-26 | 2006-01-31 | Multi-Service Corporation | Speaker grille frame |
US20050005494A1 (en) | 2003-07-11 | 2005-01-13 | Way Franklin B. | Combination display frame |
US7565286B2 (en) | 2003-07-17 | 2009-07-21 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry, Through The Communications Research Centre Canada | Method for recovery of lost speech data |
GB0317158D0 (en) | 2003-07-23 | 2003-08-27 | Mitel Networks Corp | A method to reduce acoustic coupling in audio conferencing systems |
US8244536B2 (en) | 2003-08-27 | 2012-08-14 | General Motors Llc | Algorithm for intelligent speech recognition |
US7412376B2 (en) | 2003-09-10 | 2008-08-12 | Microsoft Corporation | System and method for real-time detection and preservation of speech onset in a signal |
CA2452945C (en) | 2003-09-23 | 2016-05-10 | Mcmaster University | Binaural adaptive hearing system |
US7162041B2 (en) | 2003-09-30 | 2007-01-09 | Etymotic Research, Inc. | Noise canceling microphone with acoustically tuned ports |
US20050213747A1 (en) | 2003-10-07 | 2005-09-29 | Vtel Products, Inc. | Hybrid monaural and multichannel audio for conferencing |
USD510729S1 (en) | 2003-10-23 | 2005-10-18 | Benq Corporation | TV tuner box |
US7190775B2 (en) | 2003-10-29 | 2007-03-13 | Broadcom Corporation | High quality audio conferencing with adaptive beamforming |
US8270585B2 (en) | 2003-11-04 | 2012-09-18 | Stmicroelectronics, Inc. | System and method for an endpoint participating in and managing multipoint audio conferencing in a packet network |
DK1695590T3 (da) | 2003-12-01 | 2014-06-02 | Wolfson Dynamic Hearing Pty Ltd | Fremgangsmåde og apparat til fremstilling af adaptive, retningsbestemte signaler |
US20070116255A1 (en) | 2003-12-10 | 2007-05-24 | Koninklijke Philips Electronic, N.V. | Echo canceller having a series arrangement of adaptive filters with individual update control strategy |
US7778425B2 (en) | 2003-12-24 | 2010-08-17 | Nokia Corporation | Method for generating noise references for generalized sidelobe canceling |
KR101086398B1 (ko) | 2003-12-24 | 2011-11-25 | 삼성전자주식회사 | 다수의 마이크로폰을 이용한 지향성 제어 가능 스피커시스템 및 그 방법 |
WO2005076663A1 (en) | 2004-01-07 | 2005-08-18 | Koninklijke Philips Electronics N.V. | Audio system having reverberation reducing filter |
JP4251077B2 (ja) | 2004-01-07 | 2009-04-08 | ヤマハ株式会社 | スピーカ装置 |
US7387151B1 (en) | 2004-01-23 | 2008-06-17 | Payne Donald L | Cabinet door with changeable decorative panel |
DK176894B1 (da) | 2004-01-29 | 2010-03-08 | Dpa Microphones As | Mikrofonstruktur med retningsvirkning |
TWI289020B (en) | 2004-02-06 | 2007-10-21 | Fortemedia Inc | Apparatus and method of a dual microphone communication device applied for teleconference system |
US7515721B2 (en) | 2004-02-09 | 2009-04-07 | Microsoft Corporation | Self-descriptive microphone array |
WO2005082669A1 (de) | 2004-02-27 | 2005-09-09 | Daimlerchrysler Ag | Kraftfahrzeug mit mikrofon |
US8983834B2 (en) | 2004-03-01 | 2015-03-17 | Dolby Laboratories Licensing Corporation | Multichannel audio coding |
US7415117B2 (en) | 2004-03-02 | 2008-08-19 | Microsoft Corporation | System and method for beamforming using a microphone array |
US7826205B2 (en) | 2004-03-08 | 2010-11-02 | Originatic Llc | Electronic device having a movable input assembly with multiple input sides |
USD504889S1 (en) | 2004-03-17 | 2005-05-10 | Apple Computer, Inc. | Electronic device |
US7346315B2 (en) | 2004-03-30 | 2008-03-18 | Motorola Inc | Handheld device loudspeaker system |
JP2005311988A (ja) | 2004-04-26 | 2005-11-04 | Onkyo Corp | スピーカーシステム |
WO2005125267A2 (en) | 2004-05-05 | 2005-12-29 | Southwest Research Institute | Airborne collection of acoustic data using an unmanned aerial vehicle |
JP2005323084A (ja) | 2004-05-07 | 2005-11-17 | Nippon Telegr & Teleph Corp <Ntt> | 音響エコー消去方法、音響エコー消去装置、音響エコー消去プログラム |
US8031853B2 (en) | 2004-06-02 | 2011-10-04 | Clearone Communications, Inc. | Multi-pod conference systems |
US7856097B2 (en) | 2004-06-17 | 2010-12-21 | Panasonic Corporation | Echo canceling apparatus, telephone set using the same, and echo canceling method |
US7352858B2 (en) | 2004-06-30 | 2008-04-01 | Microsoft Corporation | Multi-channel echo cancellation with round robin regularization |
TWI241790B (en) | 2004-07-16 | 2005-10-11 | Ind Tech Res Inst | Hybrid beamforming apparatus and method for the same |
EP1633121B1 (en) | 2004-09-03 | 2008-11-05 | Harman Becker Automotive Systems GmbH | Speech signal processing with combined adaptive noise reduction and adaptive echo compensation |
KR20070050058A (ko) | 2004-09-07 | 2007-05-14 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 향상된 잡음 억제를 구비한 전화통신 디바이스 |
JP2006094389A (ja) | 2004-09-27 | 2006-04-06 | Yamaha Corp | 車内会話補助装置 |
EP1643798B1 (en) | 2004-10-01 | 2012-12-05 | AKG Acoustics GmbH | Microphone comprising two pressure-gradient capsules |
US7667728B2 (en) | 2004-10-15 | 2010-02-23 | Lifesize Communications, Inc. | Video and audio conferencing system with spatial audio |
US7720232B2 (en) | 2004-10-15 | 2010-05-18 | Lifesize Communications, Inc. | Speakerphone |
US7970151B2 (en) | 2004-10-15 | 2011-06-28 | Lifesize Communications, Inc. | Hybrid beamforming |
US7760887B2 (en) | 2004-10-15 | 2010-07-20 | Lifesize Communications, Inc. | Updating modeling information based on online data gathering |
US8116500B2 (en) | 2004-10-15 | 2012-02-14 | Lifesize Communications, Inc. | Microphone orientation and size in a speakerphone |
USD526643S1 (en) | 2004-10-19 | 2006-08-15 | Pioneer Corporation | Speaker |
US7660428B2 (en) | 2004-10-25 | 2010-02-09 | Polycom, Inc. | Ceiling microphone assembly |
CN1780495A (zh) | 2004-10-25 | 2006-05-31 | 宝利通公司 | 顶蓬麦克风组件 |
US8761385B2 (en) | 2004-11-08 | 2014-06-24 | Nec Corporation | Signal processing method, signal processing device, and signal processing program |
US20060109983A1 (en) | 2004-11-19 | 2006-05-25 | Young Randall K | Signal masking and method thereof |
US20060147063A1 (en) | 2004-12-22 | 2006-07-06 | Broadcom Corporation | Echo cancellation in telephones with multiple microphones |
USD526648S1 (en) | 2004-12-23 | 2006-08-15 | Apple Computer, Inc. | Computing device |
NO328256B1 (no) | 2004-12-29 | 2010-01-18 | Tandberg Telecom As | Audiosystem |
US7830862B2 (en) | 2005-01-07 | 2010-11-09 | At&T Intellectual Property Ii, L.P. | System and method for modifying speech playout to compensate for transmission delay jitter in a voice over internet protocol (VoIP) network |
KR20060081076A (ko) | 2005-01-07 | 2006-07-12 | 이재호 | 음성인식으로 층수를 지정하는 엘리베이터 |
USD527372S1 (en) | 2005-01-12 | 2006-08-29 | Kh Technology Corporation | Loudspeaker |
EP1681670A1 (en) | 2005-01-14 | 2006-07-19 | Dialog Semiconductor GmbH | Voice activation |
US7995768B2 (en) | 2005-01-27 | 2011-08-09 | Yamaha Corporation | Sound reinforcement system |
EP1854332A2 (en) | 2005-03-01 | 2007-11-14 | Todd Henry | Electromagnetic lever diaphragm audio transducer |
US8406435B2 (en) | 2005-03-18 | 2013-03-26 | Microsoft Corporation | Audio submix management |
US7522742B2 (en) | 2005-03-21 | 2009-04-21 | Speakercraft, Inc. | Speaker assembly with moveable baffle |
US20060222187A1 (en) | 2005-04-01 | 2006-10-05 | Scott Jarrett | Microphone and sound image processing system |
EP1708472B1 (en) | 2005-04-01 | 2007-12-05 | Mitel Networks Corporation | A method of accelerating the training of an acoustic echo canceller in a full-duplex beamforming-based audio conferencing system |
USD542543S1 (en) | 2005-04-06 | 2007-05-15 | Foremost Group Inc. | Mirror |
CA2505496A1 (en) | 2005-04-27 | 2006-10-27 | Universite De Sherbrooke | Robust localization and tracking of simultaneously moving sound sources using beamforming and particle filtering |
US7991167B2 (en) | 2005-04-29 | 2011-08-02 | Lifesize Communications, Inc. | Forming beams with nulls directed at noise sources |
WO2006121896A2 (en) | 2005-05-05 | 2006-11-16 | Sony Computer Entertainment Inc. | Microphone array based selective sound source listening and video game control |
GB2426168B (en) | 2005-05-09 | 2008-08-27 | Sony Comp Entertainment Europe | Audio processing |
EP1722545B1 (en) | 2005-05-09 | 2008-08-13 | Mitel Networks Corporation | A method and a system to reduce training time of an acoustic echo canceller in a full-duplex beamforming-based audio conferencing system |
JP4654777B2 (ja) | 2005-06-03 | 2011-03-23 | パナソニック株式会社 | 音響エコーキャンセル装置 |
JP4735956B2 (ja) | 2005-06-22 | 2011-07-27 | アイシン・エィ・ダブリュ株式会社 | 複数ボルト挿入工具 |
EP1737267B1 (en) | 2005-06-23 | 2007-11-14 | AKG Acoustics GmbH | Modelling of a microphone |
US8139782B2 (en) | 2005-06-23 | 2012-03-20 | Paul Hughes | Modular amplification system |
EP1737268B1 (en) | 2005-06-23 | 2012-02-08 | AKG Acoustics GmbH | Sound field microphone |
USD549673S1 (en) | 2005-06-29 | 2007-08-28 | Sony Corporation | Television receiver |
JP2007019907A (ja) | 2005-07-08 | 2007-01-25 | Yamaha Corp | 音声伝達システム、および通信会議装置 |
JP4137176B2 (ja) | 2005-07-27 | 2008-08-20 | 株式会社オーディオテクニカ | 会議用音声システム |
EP1923866B1 (en) | 2005-08-11 | 2014-01-01 | Asahi Kasei Kabushiki Kaisha | Sound source separating device, speech recognizing device, portable telephone, sound source separating method, and program |
US7702116B2 (en) | 2005-08-22 | 2010-04-20 | Stone Christopher L | Microphone bleed simulator |
JP4724505B2 (ja) | 2005-09-09 | 2011-07-13 | 株式会社日立製作所 | 超音波探触子およびその製造方法 |
JP2009508560A (ja) | 2005-09-21 | 2009-03-05 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 遠隔に位置するマイクロフォンを使用して音声起動される制御を有する超音波イメージングシステム |
JP2007089058A (ja) | 2005-09-26 | 2007-04-05 | Yamaha Corp | マイクアレイ制御装置 |
US7565949B2 (en) | 2005-09-27 | 2009-07-28 | Casio Computer Co., Ltd. | Flat panel display module having speaker function |
WO2007037700A1 (en) | 2005-09-30 | 2007-04-05 | Squarehead Technology As | Directional audio capturing |
USD549675S1 (en) | 2005-10-07 | 2007-08-28 | Koninklijke Philips Electronics N.V. | Center unit for home theatre system |
ATE417480T1 (de) | 2005-10-12 | 2008-12-15 | Yamaha Corp | Lautsprecher- und mikrofonanordnung |
US20070174047A1 (en) | 2005-10-18 | 2007-07-26 | Anderson Kyle D | Method and apparatus for resynchronizing packetized audio streams |
US7970123B2 (en) | 2005-10-20 | 2011-06-28 | Mitel Networks Corporation | Adaptive coupling equalization in beamforming-based communication systems |
USD546814S1 (en) | 2005-10-24 | 2007-07-17 | Teac Corporation | Guitar amplifier with digital audio disc player |
US20090237561A1 (en) | 2005-10-26 | 2009-09-24 | Kazuhiko Kobayashi | Video and audio output device |
JP4867579B2 (ja) | 2005-11-02 | 2012-02-01 | ヤマハ株式会社 | 遠隔会議装置 |
CN101268715B (zh) | 2005-11-02 | 2012-04-18 | 雅马哈株式会社 | 电话会议装置 |
US8135143B2 (en) | 2005-11-15 | 2012-03-13 | Yamaha Corporation | Remote conference apparatus and sound emitting/collecting apparatus |
US20070120029A1 (en) | 2005-11-29 | 2007-05-31 | Rgb Systems, Inc. | A Modular Wall Mounting Apparatus |
USD552570S1 (en) | 2005-11-30 | 2007-10-09 | Sony Corporation | Monitor television receiver |
USD547748S1 (en) | 2005-12-08 | 2007-07-31 | Sony Corporation | Speaker box |
US8243951B2 (en) | 2005-12-19 | 2012-08-14 | Yamaha Corporation | Sound emission and collection device |
US8130977B2 (en) | 2005-12-27 | 2012-03-06 | Polycom, Inc. | Cluster of first-order microphones and method of operation for stereo input of videoconferencing system |
US8644477B2 (en) | 2006-01-31 | 2014-02-04 | Shure Acquisition Holdings, Inc. | Digital Microphone Automixer |
JP4929740B2 (ja) | 2006-01-31 | 2012-05-09 | ヤマハ株式会社 | 音声会議装置 |
USD581510S1 (en) | 2006-02-10 | 2008-11-25 | American Power Conversion Corporation | Wiring closet ventilation unit |
JP4946090B2 (ja) | 2006-02-21 | 2012-06-06 | ヤマハ株式会社 | 収音放音一体型装置 |
JP2007228070A (ja) | 2006-02-21 | 2007-09-06 | Yamaha Corp | テレビ会議装置 |
US8730156B2 (en) | 2010-03-05 | 2014-05-20 | Sony Computer Entertainment America Llc | Maintaining multiple views on a shared stable virtual space |
JP2007274131A (ja) | 2006-03-30 | 2007-10-18 | Yamaha Corp | 拡声システム及び集音装置 |
JP2007274463A (ja) | 2006-03-31 | 2007-10-18 | Yamaha Corp | 遠隔会議装置 |
US8670581B2 (en) | 2006-04-14 | 2014-03-11 | Murray R. Harman | Electrostatic loudspeaker capable of dispersing sound both horizontally and vertically |
DE602006005228D1 (de) | 2006-04-18 | 2009-04-02 | Harman Becker Automotive Sys | System und Verfahren zur Mehrkanal-Echokompensation |
JP2007288679A (ja) | 2006-04-19 | 2007-11-01 | Yamaha Corp | 放収音装置 |
JP4816221B2 (ja) | 2006-04-21 | 2011-11-16 | ヤマハ株式会社 | 収音装置および音声会議装置 |
US20070253561A1 (en) | 2006-04-27 | 2007-11-01 | Tsp Systems, Inc. | Systems and methods for audio enhancement |
US7831035B2 (en) | 2006-04-28 | 2010-11-09 | Microsoft Corporation | Integration of a microphone array with acoustic echo cancellation and center clipping |
US8155331B2 (en) | 2006-05-10 | 2012-04-10 | Honda Motor Co., Ltd. | Sound source tracking system, method and robot |
ATE436151T1 (de) | 2006-05-10 | 2009-07-15 | Harman Becker Automotive Sys | Kompensation von mehrkanalechos durch dekorrelation |
US20070269066A1 (en) | 2006-05-19 | 2007-11-22 | Phonak Ag | Method for manufacturing an audio signal |
EP2025200A2 (en) | 2006-05-19 | 2009-02-18 | Phonak AG | Method for manufacturing an audio signal |
JP4747949B2 (ja) | 2006-05-25 | 2011-08-17 | ヤマハ株式会社 | 音声会議装置 |
US8275120B2 (en) | 2006-05-30 | 2012-09-25 | Microsoft Corp. | Adaptive acoustic echo cancellation |
JP2008005293A (ja) | 2006-06-23 | 2008-01-10 | Matsushita Electric Ind Co Ltd | エコー抑圧装置 |
USD559553S1 (en) | 2006-06-23 | 2008-01-15 | Electric Mirror, L.L.C. | Backlit mirror with TV |
JP2008005347A (ja) | 2006-06-23 | 2008-01-10 | Yamaha Corp | 音声通信装置、および複合プラグ |
JP4984683B2 (ja) | 2006-06-29 | 2012-07-25 | ヤマハ株式会社 | 放収音装置 |
US8184801B1 (en) | 2006-06-29 | 2012-05-22 | Nokia Corporation | Acoustic echo cancellation for time-varying microphone array beamsteering systems |
US20080008339A1 (en) | 2006-07-05 | 2008-01-10 | Ryan James G | Audio processing system and method |
US8189765B2 (en) | 2006-07-06 | 2012-05-29 | Panasonic Corporation | Multichannel echo canceller |
KR100883652B1 (ko) | 2006-08-03 | 2009-02-18 | 삼성전자주식회사 | 음성 구간 검출 방법 및 장치, 및 이를 이용한 음성 인식시스템 |
US8213634B1 (en) | 2006-08-07 | 2012-07-03 | Daniel Technology, Inc. | Modular and scalable directional audio array with novel filtering |
JP4887968B2 (ja) | 2006-08-09 | 2012-02-29 | ヤマハ株式会社 | 音声会議装置 |
US8280728B2 (en) | 2006-08-11 | 2012-10-02 | Broadcom Corporation | Packet loss concealment for a sub-band predictive coder based on extrapolation of excitation waveform |
US8346546B2 (en) | 2006-08-15 | 2013-01-01 | Broadcom Corporation | Packet loss concealment based on forced waveform alignment after packet loss |
US8898633B2 (en) | 2006-08-24 | 2014-11-25 | Siemens Industry, Inc. | Devices, systems, and methods for configuring a programmable logic controller |
USD566685S1 (en) | 2006-10-04 | 2008-04-15 | Lightspeed Technologies, Inc. | Combined wireless receiver, amplifier and speaker |
GB0619825D0 (en) | 2006-10-06 | 2006-11-15 | Craven Peter G | Microphone array |
US8135158B2 (en) | 2006-10-16 | 2012-03-13 | Thx Ltd | Loudspeaker line array configurations and related sound processing |
JP5028944B2 (ja) | 2006-10-17 | 2012-09-19 | ヤマハ株式会社 | 音声会議装置及び音声会議システム |
US8103030B2 (en) | 2006-10-23 | 2012-01-24 | Siemens Audiologische Technik Gmbh | Differential directional microphone system and hearing aid device with such a differential directional microphone system |
JP4928922B2 (ja) | 2006-12-01 | 2012-05-09 | 株式会社東芝 | 情報処理装置、およびプログラム |
EP1936939B1 (en) | 2006-12-18 | 2011-08-24 | Harman Becker Automotive Systems GmbH | Low complexity echo compensation |
JP2008154056A (ja) | 2006-12-19 | 2008-07-03 | Yamaha Corp | 音声会議装置および音声会議システム |
CN101207468B (zh) | 2006-12-19 | 2010-07-21 | 华为技术有限公司 | 丢帧隐藏方法、系统和装置 |
CN101212828A (zh) | 2006-12-27 | 2008-07-02 | 鸿富锦精密工业(深圳)有限公司 | 电子设备及其采用的声音模组 |
KR101365988B1 (ko) | 2007-01-05 | 2014-02-21 | 삼성전자주식회사 | 지향성 스피커 시스템의 자동 셋-업 방법 및 장치 |
US7941677B2 (en) | 2007-01-05 | 2011-05-10 | Avaya Inc. | Apparatus and methods for managing power distribution over Ethernet |
CA2675999C (en) | 2007-01-22 | 2015-12-15 | Bell Helicopter Textron Inc. | System and method for the interactive display of data in a motion capture environment |
KR101297300B1 (ko) | 2007-01-31 | 2013-08-16 | 삼성전자주식회사 | 스피커 어레이를 이용한 프론트 서라운드 재생 시스템 및그 신호 재생 방법 |
US20080188965A1 (en) | 2007-02-06 | 2008-08-07 | Rane Corporation | Remote audio device network system and method |
GB2446619A (en) | 2007-02-16 | 2008-08-20 | Audiogravity Holdings Ltd | Reduction of wind noise in an omnidirectional microphone array |
JP5139111B2 (ja) | 2007-03-02 | 2013-02-06 | 本田技研工業株式会社 | 移動音源からの音の抽出方法および装置 |
EP1970894A1 (fr) | 2007-03-12 | 2008-09-17 | France Télécom | Procédé et dispositif de modification d'un signal audio |
US7651390B1 (en) | 2007-03-12 | 2010-01-26 | Profeta Jeffery L | Ceiling vent air diverter |
USD578509S1 (en) | 2007-03-12 | 2008-10-14 | The Professional Monitor Company Limited | Audio speaker |
US8654955B1 (en) | 2007-03-14 | 2014-02-18 | Clearone Communications, Inc. | Portable conferencing device with videoconferencing option |
US8005238B2 (en) | 2007-03-22 | 2011-08-23 | Microsoft Corporation | Robust adaptive beamforming with enhanced noise suppression |
US8098842B2 (en) | 2007-03-29 | 2012-01-17 | Microsoft Corp. | Enhanced beamforming for arrays of directional microphones |
JP5050616B2 (ja) | 2007-04-06 | 2012-10-17 | ヤマハ株式会社 | 放収音装置 |
USD587709S1 (en) | 2007-04-06 | 2009-03-03 | Sony Corporation | Monitor display |
US8155304B2 (en) | 2007-04-10 | 2012-04-10 | Microsoft Corporation | Filter bank optimization for acoustic echo cancellation |
JP2008263336A (ja) | 2007-04-11 | 2008-10-30 | Oki Electric Ind Co Ltd | エコーキャンセラおよびその残留エコー抑制方法 |
EP1981170A1 (en) | 2007-04-13 | 2008-10-15 | Global IP Solutions (GIPS) AB | Adaptive, scalable packet loss recovery |
US20080259731A1 (en) | 2007-04-17 | 2008-10-23 | Happonen Aki P | Methods and apparatuses for user controlled beamforming |
EP1983799B1 (en) | 2007-04-17 | 2010-07-07 | Harman Becker Automotive Systems GmbH | Acoustic localization of a speaker |
ITTV20070070A1 (it) | 2007-04-20 | 2008-10-21 | Swing S R L | Dispositivo trasduttore del suono. |
US20080279400A1 (en) | 2007-05-10 | 2008-11-13 | Reuven Knoll | System and method for capturing voice interactions in walk-in environments |
JP2008288785A (ja) | 2007-05-16 | 2008-11-27 | Yamaha Corp | テレビ会議装置 |
ATE524015T1 (de) | 2007-05-22 | 2011-09-15 | Harman Becker Automotive Sys | Verfahren und vorrichtung zur verarbeitung mindestens zweier mikrofonsignale zur sendung eines ausgangssignals mit reduzierter interferenz |
US8229134B2 (en) | 2007-05-24 | 2012-07-24 | University Of Maryland | Audio camera using microphone arrays for real time capture of audio images and method for jointly processing the audio images with video images |
JP5338040B2 (ja) | 2007-06-04 | 2013-11-13 | ヤマハ株式会社 | 音声会議装置 |
CN101325631B (zh) | 2007-06-14 | 2010-10-20 | 华为技术有限公司 | 一种估计基音周期的方法和装置 |
CN101833954B (zh) | 2007-06-14 | 2012-07-11 | 华为终端有限公司 | 一种实现丢包隐藏的方法和装置 |
JP2008312002A (ja) | 2007-06-15 | 2008-12-25 | Yamaha Corp | テレビ会議装置 |
CN101325537B (zh) | 2007-06-15 | 2012-04-04 | 华为技术有限公司 | 一种丢帧隐藏的方法和设备 |
WO2008155708A1 (en) | 2007-06-21 | 2008-12-24 | Koninklijke Philips Electronics N.V. | A device for and a method of processing audio signals |
US20090003586A1 (en) | 2007-06-28 | 2009-01-01 | Fortemedia, Inc. | Signal processor and method for canceling echo in a communication device |
EP2168396B1 (en) | 2007-07-09 | 2019-01-16 | MH Acoustics, LLC | Augmented elliptical microphone array |
US8285554B2 (en) | 2007-07-27 | 2012-10-09 | Dsp Group Limited | Method and system for dynamic aliasing suppression |
USD589605S1 (en) | 2007-08-01 | 2009-03-31 | Trane International Inc. | Air inlet grille |
JP2009044600A (ja) | 2007-08-10 | 2009-02-26 | Panasonic Corp | マイクロホン装置およびその製造方法 |
CN101119323A (zh) | 2007-09-21 | 2008-02-06 | 腾讯科技(深圳)有限公司 | 解决网络抖动的方法及装置 |
US8064629B2 (en) | 2007-09-27 | 2011-11-22 | Peigen Jiang | Decorative loudspeaker grille |
US8175871B2 (en) | 2007-09-28 | 2012-05-08 | Qualcomm Incorporated | Apparatus and method of noise and echo reduction in multiple microphone audio systems |
US8095120B1 (en) | 2007-09-28 | 2012-01-10 | Avaya Inc. | System and method of synchronizing multiple microphone and speaker-equipped devices to create a conferenced area network |
KR101434200B1 (ko) | 2007-10-01 | 2014-08-26 | 삼성전자주식회사 | 혼합 사운드로부터의 음원 판별 방법 및 장치 |
KR101292206B1 (ko) | 2007-10-01 | 2013-08-01 | 삼성전자주식회사 | 어레이 스피커 시스템 및 그 구현 방법 |
JP5012387B2 (ja) | 2007-10-05 | 2012-08-29 | ヤマハ株式会社 | 音声処理システム |
US7832080B2 (en) | 2007-10-11 | 2010-11-16 | Etymotic Research, Inc. | Directional microphone assembly |
US8428661B2 (en) | 2007-10-30 | 2013-04-23 | Broadcom Corporation | Speech intelligibility in telephones with multiple microphones |
US8199927B1 (en) | 2007-10-31 | 2012-06-12 | ClearOnce Communications, Inc. | Conferencing system implementing echo cancellation and push-to-talk microphone detection using two-stage frequency filter |
US8290142B1 (en) | 2007-11-12 | 2012-10-16 | Clearone Communications, Inc. | Echo cancellation in a portable conferencing device with externally-produced audio |
ATE498978T1 (de) | 2007-11-13 | 2011-03-15 | Akg Acoustics Gmbh | Mikrofonanordnung, die zwei druckgradientenwandler aufweist |
KR101415026B1 (ko) | 2007-11-19 | 2014-07-04 | 삼성전자주식회사 | 마이크로폰 어레이를 이용한 다채널 사운드 획득 방법 및장치 |
EP2063419B1 (en) | 2007-11-21 | 2012-04-18 | Nuance Communications, Inc. | Speaker localization |
KR101449433B1 (ko) | 2007-11-30 | 2014-10-13 | 삼성전자주식회사 | 마이크로폰을 통해 입력된 사운드 신호로부터 잡음을제거하는 방법 및 장치 |
JP5097523B2 (ja) | 2007-12-07 | 2012-12-12 | 船井電機株式会社 | 音声入力装置 |
US8744069B2 (en) | 2007-12-10 | 2014-06-03 | Microsoft Corporation | Removing near-end frequencies from far-end sound |
US8433061B2 (en) | 2007-12-10 | 2013-04-30 | Microsoft Corporation | Reducing echo |
US8219387B2 (en) | 2007-12-10 | 2012-07-10 | Microsoft Corporation | Identifying far-end sound |
US8175291B2 (en) | 2007-12-19 | 2012-05-08 | Qualcomm Incorporated | Systems, methods, and apparatus for multi-microphone based speech enhancement |
US20090173570A1 (en) | 2007-12-20 | 2009-07-09 | Levit Natalia V | Acoustically absorbent ceiling tile having barrier facing with diffuse reflectance |
USD604729S1 (en) | 2008-01-04 | 2009-11-24 | Apple Inc. | Electronic device |
US7765762B2 (en) | 2008-01-08 | 2010-08-03 | Usg Interiors, Inc. | Ceiling panel |
USD582391S1 (en) | 2008-01-17 | 2008-12-09 | Roland Corporation | Speaker |
USD595402S1 (en) | 2008-02-04 | 2009-06-30 | Panasonic Corporation | Ventilating fan for a ceiling |
WO2009105793A1 (en) | 2008-02-26 | 2009-09-03 | Akg Acoustics Gmbh | Transducer assembly |
JP5003531B2 (ja) | 2008-02-27 | 2012-08-15 | ヤマハ株式会社 | 音声会議システム |
US8503653B2 (en) | 2008-03-03 | 2013-08-06 | Alcatel Lucent | Method and apparatus for active speaker selection using microphone arrays and speaker recognition |
KR20100131467A (ko) | 2008-03-03 | 2010-12-15 | 노키아 코포레이션 | 복수의 오디오 채널들을 캡쳐하고 렌더링하는 장치 |
WO2009109069A1 (en) | 2008-03-07 | 2009-09-11 | Arcsoft (Shanghai) Technology Company, Ltd. | Implementing a high quality voip device |
US8626080B2 (en) | 2008-03-11 | 2014-01-07 | Intel Corporation | Bidirectional iterative beam forming |
WO2009126561A1 (en) | 2008-04-07 | 2009-10-15 | Dolby Laboratories Licensing Corporation | Surround sound generation from a microphone array |
US8559611B2 (en) | 2008-04-07 | 2013-10-15 | Polycom, Inc. | Audio signal routing |
US9142221B2 (en) | 2008-04-07 | 2015-09-22 | Cambridge Silicon Radio Limited | Noise reduction |
US8379823B2 (en) | 2008-04-07 | 2013-02-19 | Polycom, Inc. | Distributed bridging |
US8284949B2 (en) | 2008-04-17 | 2012-10-09 | University Of Utah Research Foundation | Multi-channel acoustic echo cancellation system and method |
US8385557B2 (en) | 2008-06-19 | 2013-02-26 | Microsoft Corporation | Multichannel acoustic echo reduction |
US7861825B2 (en) | 2008-06-27 | 2011-01-04 | Rgb Systems, Inc. | Method and apparatus for a loudspeaker assembly |
US8672087B2 (en) | 2008-06-27 | 2014-03-18 | Rgb Systems, Inc. | Ceiling loudspeaker support system |
US8631897B2 (en) | 2008-06-27 | 2014-01-21 | Rgb Systems, Inc. | Ceiling loudspeaker system |
US8286749B2 (en) | 2008-06-27 | 2012-10-16 | Rgb Systems, Inc. | Ceiling loudspeaker system |
US8276706B2 (en) | 2008-06-27 | 2012-10-02 | Rgb Systems, Inc. | Method and apparatus for a loudspeaker assembly |
US8109360B2 (en) | 2008-06-27 | 2012-02-07 | Rgb Systems, Inc. | Method and apparatus for a loudspeaker assembly |
JP4991649B2 (ja) | 2008-07-02 | 2012-08-01 | パナソニック株式会社 | 音声信号処理装置 |
KR100901464B1 (ko) | 2008-07-03 | 2009-06-08 | (주)기가바이트씨앤씨 | 집음기 및 집음기 세트 |
EP2146519B1 (en) | 2008-07-16 | 2012-06-06 | Nuance Communications, Inc. | Beamforming pre-processing for speaker localization |
US20100011644A1 (en) | 2008-07-17 | 2010-01-21 | Kramer Eric J | Memorabilia display system |
JP5075042B2 (ja) | 2008-07-23 | 2012-11-14 | 日本電信電話株式会社 | エコー消去装置、エコー消去方法、そのプログラム、記録媒体 |
USD613338S1 (en) | 2008-07-31 | 2010-04-06 | Chris Marukos | Interchangeable advertising sign |
USD595736S1 (en) | 2008-08-15 | 2009-07-07 | Samsung Electronics Co., Ltd. | DVD player |
AU2009287421B2 (en) | 2008-08-29 | 2015-09-17 | Biamp Systems, LLC | A microphone array system and method for sound acquisition |
US8605890B2 (en) | 2008-09-22 | 2013-12-10 | Microsoft Corporation | Multichannel acoustic echo cancellation |
EP2350683B1 (en) | 2008-10-06 | 2017-01-04 | Raytheon BBN Technologies Corp. | Wearable shooter localization system |
WO2010043998A1 (en) | 2008-10-16 | 2010-04-22 | Nxp B.V. | Microphone system and method of operating the same |
US8724829B2 (en) | 2008-10-24 | 2014-05-13 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for coherence detection |
US8041054B2 (en) | 2008-10-31 | 2011-10-18 | Continental Automotive Systems, Inc. | Systems and methods for selectively switching between multiple microphones |
JP5386936B2 (ja) | 2008-11-05 | 2014-01-15 | ヤマハ株式会社 | 放収音装置 |
US20100123785A1 (en) | 2008-11-17 | 2010-05-20 | Apple Inc. | Graphic Control for Directional Audio Input |
US8150063B2 (en) | 2008-11-25 | 2012-04-03 | Apple Inc. | Stabilizing directional audio input from a moving microphone array |
KR20100060457A (ko) | 2008-11-27 | 2010-06-07 | 삼성전자주식회사 | 이동통신 단말기의 동작모드 제어장치 및 방법 |
US8744101B1 (en) | 2008-12-05 | 2014-06-03 | Starkey Laboratories, Inc. | System for controlling the primary lobe of a hearing instrument's directional sensitivity pattern |
US8842851B2 (en) | 2008-12-12 | 2014-09-23 | Broadcom Corporation | Audio source localization system and method |
EP2197219B1 (en) | 2008-12-12 | 2012-10-24 | Nuance Communications, Inc. | Method for determining a time delay for time delay compensation |
NO332961B1 (no) | 2008-12-23 | 2013-02-11 | Cisco Systems Int Sarl | Forhoyet toroidmikrofonapparat |
US8259959B2 (en) | 2008-12-23 | 2012-09-04 | Cisco Technology, Inc. | Toroid microphone apparatus |
JP5446275B2 (ja) | 2009-01-08 | 2014-03-19 | ヤマハ株式会社 | 拡声システム |
NO333056B1 (no) | 2009-01-21 | 2013-02-25 | Cisco Systems Int Sarl | Direktiv mikrofon |
EP2211564B1 (en) | 2009-01-23 | 2014-09-10 | Harman Becker Automotive Systems GmbH | Passenger compartment communication system |
US8116499B2 (en) | 2009-01-23 | 2012-02-14 | John Grant | Microphone adaptor for altering the geometry of a microphone without altering its frequency response characteristics |
DE102009007891A1 (de) | 2009-02-07 | 2010-08-12 | Willsingh Wilson | Resonanz-Schallabsorber in mehrschichtiger Ausführung |
US8654990B2 (en) | 2009-02-09 | 2014-02-18 | Waves Audio Ltd. | Multiple microphone based directional sound filter |
JP5304293B2 (ja) | 2009-02-10 | 2013-10-02 | ヤマハ株式会社 | 収音装置 |
DE102009010278B4 (de) | 2009-02-16 | 2018-12-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Lautsprecher |
EP2222091B1 (en) | 2009-02-23 | 2013-04-24 | Nuance Communications, Inc. | Method for determining a set of filter coefficients for an acoustic echo compensation means |
US20100217590A1 (en) | 2009-02-24 | 2010-08-26 | Broadcom Corporation | Speaker localization system and method |
CN101510426B (zh) | 2009-03-23 | 2013-03-27 | 北京中星微电子有限公司 | 一种噪声消除方法及系统 |
US8184180B2 (en) | 2009-03-25 | 2012-05-22 | Broadcom Corporation | Spatially synchronized audio and video capture |
CN101854573B (zh) | 2009-03-30 | 2014-12-24 | 富准精密工业(深圳)有限公司 | 音响结构及使用该音响结构的电子装置 |
GB0906269D0 (en) | 2009-04-09 | 2009-05-20 | Ntnu Technology Transfer As | Optimal modal beamformer for sensor arrays |
US8291670B2 (en) | 2009-04-29 | 2012-10-23 | E.M.E.H., Inc. | Modular entrance floor system |
US8483398B2 (en) | 2009-04-30 | 2013-07-09 | Hewlett-Packard Development Company, L.P. | Methods and systems for reducing acoustic echoes in multichannel communication systems by reducing the dimensionality of the space of impulse responses |
US8485700B2 (en) | 2009-05-05 | 2013-07-16 | Abl Ip Holding, Llc | Low profile OLED luminaire for grid ceilings |
WO2010130084A1 (zh) | 2009-05-12 | 2010-11-18 | 华为终端有限公司 | 远程呈现系统、方法及视频采集设备 |
JP5169986B2 (ja) | 2009-05-13 | 2013-03-27 | 沖電気工業株式会社 | 電話装置、エコーキャンセラ及びエコーキャンセルプログラム |
JP5246044B2 (ja) | 2009-05-29 | 2013-07-24 | ヤマハ株式会社 | 音響装置 |
JP5451876B2 (ja) | 2009-06-02 | 2014-03-26 | コーニンクレッカ フィリップス エヌ ヴェ | 音響マルチチャネル相殺 |
US9140054B2 (en) | 2009-06-05 | 2015-09-22 | Oberbroeckling Development Company | Insert holding system |
US20100314513A1 (en) | 2009-06-12 | 2010-12-16 | Rgb Systems, Inc. | Method and apparatus for overhead equipment mounting |
US8204198B2 (en) | 2009-06-19 | 2012-06-19 | Magor Communications Corporation | Method and apparatus for selecting an audio stream |
JP2011015018A (ja) | 2009-06-30 | 2011-01-20 | Clarion Co Ltd | 自動音量制御装置 |
EP2846279A1 (en) | 2009-07-14 | 2015-03-11 | Visionarist Co., LTD. | Image data display system and image data display program |
JP5347794B2 (ja) | 2009-07-21 | 2013-11-20 | ヤマハ株式会社 | エコー抑圧方法およびその装置 |
FR2948484B1 (fr) | 2009-07-23 | 2011-07-29 | Parrot | Procede de filtrage des bruits lateraux non-stationnaires pour un dispositif audio multi-microphone, notamment un dispositif telephonique "mains libres" pour vehicule automobile |
USD614871S1 (en) | 2009-08-07 | 2010-05-04 | Hon Hai Precision Industry Co., Ltd. | Digital photo frame |
US8233352B2 (en) | 2009-08-17 | 2012-07-31 | Broadcom Corporation | Audio source localization system and method |
GB2473267A (en) | 2009-09-07 | 2011-03-09 | Nokia Corp | Processing audio signals to reduce noise |
JP5452158B2 (ja) | 2009-10-07 | 2014-03-26 | 株式会社日立製作所 | 音響監視システム、及び音声集音システム |
GB201011530D0 (en) | 2010-07-08 | 2010-08-25 | Berry Michael T | Encasements comprising phase change materials |
JP5347902B2 (ja) | 2009-10-22 | 2013-11-20 | ヤマハ株式会社 | 音響処理装置 |
US20110096915A1 (en) | 2009-10-23 | 2011-04-28 | Broadcom Corporation | Audio spatialization for conference calls with multiple and moving talkers |
USD643015S1 (en) | 2009-11-05 | 2011-08-09 | Lg Electronics Inc. | Speaker for home theater |
EP2499839B1 (en) | 2009-11-12 | 2017-01-04 | Robert Henry Frater | Speakerphone with microphone array |
US8515109B2 (en) | 2009-11-19 | 2013-08-20 | Gn Resound A/S | Hearing aid with beamforming capability |
USD617441S1 (en) | 2009-11-30 | 2010-06-08 | Panasonic Corporation | Ceiling ventilating fan |
CH702399B1 (fr) | 2009-12-02 | 2018-05-15 | Veovox Sa | Appareil et procédé pour la saisie et le traitement de la voix. |
US9058797B2 (en) | 2009-12-15 | 2015-06-16 | Smule, Inc. | Continuous pitch-corrected vocal capture device cooperative with content server for backing track mix |
US9307326B2 (en) | 2009-12-22 | 2016-04-05 | Mh Acoustics Llc | Surface-mounted microphone arrays on flexible printed circuit boards |
US8634569B2 (en) | 2010-01-08 | 2014-01-21 | Conexant Systems, Inc. | Systems and methods for echo cancellation and echo suppression |
EP2360940A1 (en) | 2010-01-19 | 2011-08-24 | Televic NV. | Steerable microphone array system with a first order directional pattern |
USD658153S1 (en) | 2010-01-25 | 2012-04-24 | Lg Electronics Inc. | Home theater receiver |
US8583481B2 (en) | 2010-02-12 | 2013-11-12 | Walter Viveiros | Portable interactive modular selling room |
EP2537353B1 (en) | 2010-02-19 | 2018-03-07 | Sivantos Pte. Ltd. | Device and method for direction dependent spatial noise reduction |
JP5550406B2 (ja) | 2010-03-23 | 2014-07-16 | 株式会社オーディオテクニカ | 可変指向性マイクロホン |
USD642385S1 (en) | 2010-03-31 | 2011-08-02 | Samsung Electronics Co., Ltd. | Electronic frame |
CN101860776B (zh) | 2010-05-07 | 2013-08-21 | 中国科学院声学研究所 | 一种平面螺旋形传声器阵列 |
US8395653B2 (en) | 2010-05-18 | 2013-03-12 | Polycom, Inc. | Videoconferencing endpoint having multiple voice-tracking cameras |
US8515089B2 (en) | 2010-06-04 | 2013-08-20 | Apple Inc. | Active noise cancellation decisions in a portable audio device |
USD636188S1 (en) | 2010-06-17 | 2011-04-19 | Samsung Electronics Co., Ltd. | Electronic frame |
USD655271S1 (en) | 2010-06-17 | 2012-03-06 | Lg Electronics Inc. | Home theater receiver |
US9094496B2 (en) | 2010-06-18 | 2015-07-28 | Avaya Inc. | System and method for stereophonic acoustic echo cancellation |
US8638951B2 (en) * | 2010-07-15 | 2014-01-28 | Motorola Mobility Llc | Electronic apparatus for generating modified wideband audio signals based on two or more wideband microphone signals |
CN203435060U (zh) | 2010-07-15 | 2014-02-12 | 艾利佛有限公司 | 无线电话会议的电话系统和电话网关 |
US9769519B2 (en) | 2010-07-16 | 2017-09-19 | Enseo, Inc. | Media appliance and method for use of same |
US8755174B2 (en) | 2010-07-16 | 2014-06-17 | Ensco, Inc. | Media appliance and method for use of same |
US8965546B2 (en) | 2010-07-26 | 2015-02-24 | Qualcomm Incorporated | Systems, methods, and apparatus for enhanced acoustic imaging |
US9172345B2 (en) | 2010-07-27 | 2015-10-27 | Bitwave Pte Ltd | Personalized adjustment of an audio device |
CN101894558A (zh) | 2010-08-04 | 2010-11-24 | 华为技术有限公司 | 丢帧恢复方法、设备以及语音增强方法、设备和系统 |
BR112012031656A2 (pt) | 2010-08-25 | 2016-11-08 | Asahi Chemical Ind | dispositivo, e método de separação de fontes sonoras, e, programa |
KR101750338B1 (ko) | 2010-09-13 | 2017-06-23 | 삼성전자주식회사 | 마이크의 빔포밍 수행 방법 및 장치 |
KR101782050B1 (ko) | 2010-09-17 | 2017-09-28 | 삼성전자주식회사 | 비등간격으로 배치된 마이크로폰을 이용한 음질 향상 장치 및 방법 |
US8861756B2 (en) | 2010-09-24 | 2014-10-14 | LI Creative Technologies, Inc. | Microphone array system |
WO2012046256A2 (en) | 2010-10-08 | 2012-04-12 | Optical Fusion Inc. | Audio acoustic echo cancellation for video conferencing |
US8553904B2 (en) | 2010-10-14 | 2013-10-08 | Hewlett-Packard Development Company, L.P. | Systems and methods for performing sound source localization |
US8976977B2 (en) | 2010-10-15 | 2015-03-10 | King's College London | Microphone array |
US9031256B2 (en) | 2010-10-25 | 2015-05-12 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for orientation-sensitive recording control |
US9552840B2 (en) | 2010-10-25 | 2017-01-24 | Qualcomm Incorporated | Three-dimensional sound capturing and reproducing with multi-microphones |
EP2448289A1 (en) | 2010-10-28 | 2012-05-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for deriving a directional information and computer program product |
KR101715779B1 (ko) | 2010-11-09 | 2017-03-13 | 삼성전자주식회사 | 음원 신호 처리 장치 및 그 방법 |
EP2638694A4 (en) | 2010-11-12 | 2017-05-03 | Nokia Technologies Oy | An Audio Processing Apparatus |
WO2012068174A2 (en) | 2010-11-15 | 2012-05-24 | The Regents Of The University Of California | Method for controlling a speaker array to provide spatialized, localized, and binaural virtual surround sound |
US8761412B2 (en) | 2010-12-16 | 2014-06-24 | Sony Computer Entertainment Inc. | Microphone array steering with image-based source location |
CN103329566A (zh) | 2010-12-20 | 2013-09-25 | 峰力公司 | 用于房间中的语音增强的方法和系统 |
WO2012083989A1 (en) | 2010-12-22 | 2012-06-28 | Sony Ericsson Mobile Communications Ab | Method of controlling audio recording and electronic device |
KR101761312B1 (ko) | 2010-12-23 | 2017-07-25 | 삼성전자주식회사 | 마이크 어레이를 이용한 방향성 음원 필터링 장치 및 그 제어방법 |
KR101852569B1 (ko) | 2011-01-04 | 2018-06-12 | 삼성전자주식회사 | 은닉 마이크로폰 배치 구조를 가진 마이크로폰 어레이 장치 및 그 마이크로폰 어레이 장치를 포함한 음향 신호 처리 장치 |
US8525868B2 (en) | 2011-01-13 | 2013-09-03 | Qualcomm Incorporated | Variable beamforming with a mobile platform |
JP5395822B2 (ja) | 2011-02-07 | 2014-01-22 | 日本電信電話株式会社 | ズームマイク装置 |
US9100735B1 (en) | 2011-02-10 | 2015-08-04 | Dolby Laboratories Licensing Corporation | Vector noise cancellation |
US20120207335A1 (en) | 2011-02-14 | 2012-08-16 | Nxp B.V. | Ported mems microphone |
US8929564B2 (en) | 2011-03-03 | 2015-01-06 | Microsoft Corporation | Noise adaptive beamforming for microphone arrays |
EP2681929A1 (en) | 2011-03-03 | 2014-01-08 | David Clark Company Incorporated | Voice activation system and method and communication system and method using the same |
US9354310B2 (en) | 2011-03-03 | 2016-05-31 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for source localization using audible sound and ultrasound |
WO2012122132A1 (en) | 2011-03-04 | 2012-09-13 | University Of Washington | Dynamic distribution of acoustic energy in a projected sound field and associated systems and methods |
US8942382B2 (en) | 2011-03-22 | 2015-01-27 | Mh Acoustics Llc | Dynamic beamformer processing for acoustic echo cancellation in systems with high acoustic coupling |
US8676728B1 (en) | 2011-03-30 | 2014-03-18 | Rawles Llc | Sound localization with artificial neural network |
US8620650B2 (en) | 2011-04-01 | 2013-12-31 | Bose Corporation | Rejecting noise with paired microphones |
US8811601B2 (en) | 2011-04-04 | 2014-08-19 | Qualcomm Incorporated | Integrated echo cancellation and noise suppression |
GB2494849A (en) | 2011-04-14 | 2013-03-27 | Orbitsound Ltd | Microphone assembly |
US20120262536A1 (en) | 2011-04-14 | 2012-10-18 | Microsoft Corporation | Stereophonic teleconferencing using a microphone array |
EP2710788A1 (en) | 2011-05-17 | 2014-03-26 | Google, Inc. | Using echo cancellation information to limit gain control adaptation |
USD682266S1 (en) | 2011-05-23 | 2013-05-14 | Arcadyan Technology Corporation | WLAN ADSL device |
EP2716069B1 (en) | 2011-05-23 | 2021-09-08 | Sonova AG | A method of processing a signal in a hearing instrument, and hearing instrument |
WO2012160459A1 (en) | 2011-05-24 | 2012-11-29 | Koninklijke Philips Electronics N.V. | Privacy sound system |
US9215327B2 (en) | 2011-06-11 | 2015-12-15 | Clearone Communications, Inc. | Methods and apparatuses for multi-channel acoustic echo cancelation |
USD656473S1 (en) | 2011-06-11 | 2012-03-27 | Amx Llc | Wall display |
US9264553B2 (en) | 2011-06-11 | 2016-02-16 | Clearone Communications, Inc. | Methods and apparatuses for echo cancelation with beamforming microphone arrays |
WO2012174159A1 (en) | 2011-06-14 | 2012-12-20 | Rgb Systems, Inc. | Ceiling loudspeaker system |
CN102833664A (zh) | 2011-06-15 | 2012-12-19 | Rgb系统公司 | 天花板扩音器系统 |
US9973848B2 (en) | 2011-06-21 | 2018-05-15 | Amazon Technologies, Inc. | Signal-enhancing beamforming in an augmented reality environment |
JP5799619B2 (ja) | 2011-06-24 | 2015-10-28 | 船井電機株式会社 | マイクロホンユニット |
DE102011051727A1 (de) | 2011-07-11 | 2013-01-17 | Pinta Acoustic Gmbh | Verfahren und Vorrichtung zur aktiven Schallmaskierung |
US9066055B2 (en) | 2011-07-27 | 2015-06-23 | Texas Instruments Incorporated | Power supply architectures for televisions and other powered devices |
JP5289517B2 (ja) | 2011-07-28 | 2013-09-11 | 株式会社半導体理工学研究センター | センサネットワークシステムとその通信方法 |
EP2552128A1 (en) | 2011-07-29 | 2013-01-30 | Sonion Nederland B.V. | A dual cartridge directional microphone |
CN102915737B (zh) | 2011-07-31 | 2018-01-19 | 中兴通讯股份有限公司 | 一种浊音起始帧后丢帧的补偿方法和装置 |
US9253567B2 (en) | 2011-08-31 | 2016-02-02 | Stmicroelectronics S.R.L. | Array microphone apparatus for generating a beam forming signal and beam forming method thereof |
US10015589B1 (en) | 2011-09-02 | 2018-07-03 | Cirrus Logic, Inc. | Controlling speech enhancement algorithms using near-field spatial statistics |
USD678329S1 (en) | 2011-09-21 | 2013-03-19 | Samsung Electronics Co., Ltd. | Portable multimedia terminal |
USD686182S1 (en) | 2011-09-26 | 2013-07-16 | Nakayo Telecommunications, Inc. | Audio equipment for audio teleconferences |
KR101751749B1 (ko) | 2011-09-27 | 2017-07-03 | 한국전자통신연구원 | 이차원 지향성 스피커 어레이 모듈 |
GB2495130B (en) | 2011-09-30 | 2018-10-24 | Skype | Processing audio signals |
JP5685173B2 (ja) | 2011-10-04 | 2015-03-18 | Toa株式会社 | 拡声システム |
JP5668664B2 (ja) | 2011-10-12 | 2015-02-12 | 船井電機株式会社 | マイクロホン装置、マイクロホン装置を備えた電子機器、マイクロホン装置の製造方法、マイクロホン装置用基板およびマイクロホン装置用基板の製造方法 |
US9143879B2 (en) | 2011-10-19 | 2015-09-22 | James Keith McElveen | Directional audio array apparatus and system |
EP2772910B1 (en) | 2011-10-24 | 2019-06-19 | ZTE Corporation | Frame loss compensation method and apparatus for voice frame signal |
USD693328S1 (en) | 2011-11-09 | 2013-11-12 | Sony Corporation | Speaker box |
GB201120392D0 (en) | 2011-11-25 | 2012-01-11 | Skype Ltd | Processing signals |
US8983089B1 (en) | 2011-11-28 | 2015-03-17 | Rawles Llc | Sound source localization using multiple microphone arrays |
KR101282673B1 (ko) | 2011-12-09 | 2013-07-05 | 현대자동차주식회사 | 음원 위치 추정 방법 |
US9408011B2 (en) | 2011-12-19 | 2016-08-02 | Qualcomm Incorporated | Automated user/sensor location recognition to customize audio performance in a distributed multi-sensor environment |
USD687432S1 (en) | 2011-12-28 | 2013-08-06 | Hon Hai Precision Industry Co., Ltd. | Tablet personal computer |
US9197974B1 (en) | 2012-01-06 | 2015-11-24 | Audience, Inc. | Directional audio capture adaptation based on alternative sensory input |
US8511429B1 (en) | 2012-02-13 | 2013-08-20 | Usg Interiors, Llc | Ceiling panels made from corrugated cardboard |
JP3175622U (ja) | 2012-02-23 | 2012-05-24 | 株式会社ラクテル | 和紙ラベル |
JP5741487B2 (ja) * | 2012-02-29 | 2015-07-01 | オムロン株式会社 | マイクロフォン |
USD699712S1 (en) | 2012-02-29 | 2014-02-18 | Clearone Communications, Inc. | Beamforming microphone |
WO2013144609A1 (en) | 2012-03-26 | 2013-10-03 | University Of Surrey | Acoustic source separation |
CN102646418B (zh) | 2012-03-29 | 2014-07-23 | 北京华夏电通科技股份有限公司 | 一种远程音频交互的多路声学回音消除方法及系统 |
CN104395957B (zh) | 2012-04-30 | 2018-02-13 | 创新科技有限公司 | 一种通用可重构回声消除系统 |
US9336792B2 (en) | 2012-05-07 | 2016-05-10 | Marvell World Trade Ltd. | Systems and methods for voice enhancement in audio conference |
US9423870B2 (en) | 2012-05-08 | 2016-08-23 | Google Inc. | Input determination method |
US20130304476A1 (en) | 2012-05-11 | 2013-11-14 | Qualcomm Incorporated | Audio User Interaction Recognition and Context Refinement |
US20130329908A1 (en) | 2012-06-08 | 2013-12-12 | Apple Inc. | Adjusting audio beamforming settings based on system state |
US20130332156A1 (en) | 2012-06-11 | 2013-12-12 | Apple Inc. | Sensor Fusion to Improve Speech/Audio Processing in a Mobile Device |
US20130343549A1 (en) | 2012-06-22 | 2013-12-26 | Verisilicon Holdings Co., Ltd. | Microphone arrays for generating stereo and surround channels, method of operation thereof and module incorporating the same |
US9560446B1 (en) | 2012-06-27 | 2017-01-31 | Amazon Technologies, Inc. | Sound source locator with distributed microphone array |
US20140003635A1 (en) | 2012-07-02 | 2014-01-02 | Qualcomm Incorporated | Audio signal processing device calibration |
US9065901B2 (en) | 2012-07-03 | 2015-06-23 | Harris Corporation | Electronic communication devices with integrated microphones |
US20140016794A1 (en) | 2012-07-13 | 2014-01-16 | Conexant Systems, Inc. | Echo cancellation system and method with multiple microphones and multiple speakers |
AU2012384922B2 (en) | 2012-07-13 | 2015-11-12 | Razer (Asia-Pacific) Pte. Ltd. | An audio signal output device and method of processing an audio signal |
WO2014017134A1 (ja) | 2012-07-27 | 2014-01-30 | ソニー株式会社 | 情報処理システムおよび記憶媒体 |
US9258644B2 (en) | 2012-07-27 | 2016-02-09 | Nokia Technologies Oy | Method and apparatus for microphone beamforming |
US9094768B2 (en) | 2012-08-02 | 2015-07-28 | Crestron Electronics Inc. | Loudspeaker calibration using multiple wireless microphones |
CN102821336B (zh) | 2012-08-08 | 2015-01-21 | 英爵音响(上海)有限公司 | 吸顶式平板音响 |
US9113243B2 (en) | 2012-08-16 | 2015-08-18 | Cisco Technology, Inc. | Method and system for obtaining an audio signal |
USD725059S1 (en) | 2012-08-29 | 2015-03-24 | Samsung Electronics Co., Ltd. | Television receiver |
US9031262B2 (en) | 2012-09-04 | 2015-05-12 | Avid Technology, Inc. | Distributed, self-scaling, network-based architecture for sound reinforcement, mixing, and monitoring |
US9088336B2 (en) | 2012-09-06 | 2015-07-21 | Imagination Technologies Limited | Systems and methods of echo and noise cancellation in voice communication |
US8873789B2 (en) | 2012-09-06 | 2014-10-28 | Audix Corporation | Articulating microphone mount |
WO2014037765A1 (en) | 2012-09-10 | 2014-03-13 | Nokia Corporation | Detection of a microphone impairment and automatic microphone switching |
WO2014040017A1 (en) | 2012-09-10 | 2014-03-13 | Robert Bosch Gmbh | Mems microphone package with molded interconnect device |
US8987842B2 (en) | 2012-09-14 | 2015-03-24 | Solid State System Co., Ltd. | Microelectromechanical system (MEMS) device and fabrication method thereof |
USD685346S1 (en) | 2012-09-14 | 2013-07-02 | Research In Motion Limited | Speaker |
US9549253B2 (en) | 2012-09-26 | 2017-01-17 | Foundation for Research and Technology—Hellas (FORTH) Institute of Computer Science (ICS) | Sound source localization and isolation apparatuses, methods and systems |
EP2759147A1 (en) | 2012-10-02 | 2014-07-30 | MH Acoustics, LLC | Earphones having configurable microphone arrays |
US9264799B2 (en) | 2012-10-04 | 2016-02-16 | Siemens Aktiengesellschaft | Method and apparatus for acoustic area monitoring by exploiting ultra large scale arrays of microphones |
US9615172B2 (en) | 2012-10-04 | 2017-04-04 | Siemens Aktiengesellschaft | Broadband sensor location selection using convex optimization in very large scale arrays |
US20140098233A1 (en) | 2012-10-05 | 2014-04-10 | Sensormatic Electronics, LLC | Access Control Reader with Audio Spatial Filtering |
US9232310B2 (en) | 2012-10-15 | 2016-01-05 | Nokia Technologies Oy | Methods, apparatuses and computer program products for facilitating directional audio capture with multiple microphones |
PL401372A1 (pl) | 2012-10-26 | 2014-04-28 | Ivona Software Spółka Z Ograniczoną Odpowiedzialnością | Hybrydowa kompresja danych głosowych w systemach zamiany tekstu na mowę |
US9247367B2 (en) | 2012-10-31 | 2016-01-26 | International Business Machines Corporation | Management system with acoustical measurement for monitoring noise levels |
US9232185B2 (en) | 2012-11-20 | 2016-01-05 | Clearone Communications, Inc. | Audio conferencing system for all-in-one displays |
US9237391B2 (en) | 2012-12-04 | 2016-01-12 | Northwestern Polytechnical University | Low noise differential microphone arrays |
CN103888630A (zh) | 2012-12-20 | 2014-06-25 | 杜比实验室特许公司 | 用于控制声学回声消除的方法和音频处理装置 |
CN103903627B (zh) | 2012-12-27 | 2018-06-19 | 中兴通讯股份有限公司 | 一种语音数据的传输方法及装置 |
JP6074263B2 (ja) | 2012-12-27 | 2017-02-01 | キヤノン株式会社 | 雑音抑圧装置及びその制御方法 |
JP2014143678A (ja) | 2012-12-27 | 2014-08-07 | Panasonic Corp | 音声処理システム及び音声処理方法 |
USD735717S1 (en) | 2012-12-29 | 2015-08-04 | Intel Corporation | Electronic display device |
TWI593294B (zh) | 2013-02-07 | 2017-07-21 | 晨星半導體股份有限公司 | 收音系統與相關方法 |
JP6253031B2 (ja) | 2013-02-15 | 2017-12-27 | パナソニックIpマネジメント株式会社 | キャリブレーション方法 |
TWM457212U (zh) | 2013-02-21 | 2013-07-11 | Chi Mei Comm Systems Inc | 殼體組件 |
US9167326B2 (en) | 2013-02-21 | 2015-10-20 | Core Brands, Llc | In-wall multiple-bay loudspeaker system |
US9294839B2 (en) | 2013-03-01 | 2016-03-22 | Clearone, Inc. | Augmentation of a beamforming microphone array with non-beamforming microphones |
WO2014138134A2 (en) | 2013-03-05 | 2014-09-12 | Tiskerling Dynamics Llc | Adjusting the beam pattern of a speaker array based on the location of one or more listeners |
CN104053088A (zh) | 2013-03-11 | 2014-09-17 | 联想(北京)有限公司 | 一种麦克风阵列调整方法、麦克风阵列及电子设备 |
US9877580B2 (en) | 2013-03-14 | 2018-01-30 | Rgb Systems, Inc. | Suspended ceiling-mountable enclosure |
US20140357177A1 (en) | 2013-03-14 | 2014-12-04 | Rgb Systems, Inc. | Suspended ceiling-mountable enclosure |
US9319799B2 (en) | 2013-03-14 | 2016-04-19 | Robert Bosch Gmbh | Microphone package with integrated substrate |
US9516428B2 (en) | 2013-03-14 | 2016-12-06 | Infineon Technologies Ag | MEMS acoustic transducer, MEMS microphone, MEMS microspeaker, array of speakers and method for manufacturing an acoustic transducer |
US20170206064A1 (en) | 2013-03-15 | 2017-07-20 | JIBO, Inc. | Persistent companion device configuration and deployment platform |
US9661418B2 (en) | 2013-03-15 | 2017-05-23 | Loud Technologies Inc | Method and system for large scale audio system |
US8861713B2 (en) | 2013-03-17 | 2014-10-14 | Texas Instruments Incorporated | Clipping based on cepstral distance for acoustic echo canceller |
CN105230044A (zh) | 2013-03-20 | 2016-01-06 | 诺基亚技术有限公司 | 空间音频装置 |
CN104065798B (zh) | 2013-03-21 | 2016-08-03 | 华为技术有限公司 | 声音信号处理方法及设备 |
WO2014156292A1 (ja) | 2013-03-29 | 2014-10-02 | 日産自動車株式会社 | 音源探査用マイクロホン支持装置 |
TWI486002B (zh) | 2013-03-29 | 2015-05-21 | Hon Hai Prec Ind Co Ltd | 可消除干擾的電子裝置 |
US9491561B2 (en) | 2013-04-11 | 2016-11-08 | Broadcom Corporation | Acoustic echo cancellation with internal upmixing |
US9038301B2 (en) | 2013-04-15 | 2015-05-26 | Rose Displays Ltd. | Illuminable panel frame assembly arrangement |
KR102172718B1 (ko) | 2013-04-29 | 2020-11-02 | 유니버시티 오브 서레이 | 음원 분리를 위한 마이크로폰 어레이 |
US9936290B2 (en) | 2013-05-03 | 2018-04-03 | Qualcomm Incorporated | Multi-channel echo cancellation and noise suppression |
US20160155455A1 (en) * | 2013-05-22 | 2016-06-02 | Nokia Technologies Oy | A shared audio scene apparatus |
US9905243B2 (en) | 2013-05-23 | 2018-02-27 | Nec Corporation | Speech processing system, speech processing method, speech processing program, vehicle including speech processing system on board, and microphone placing method |
GB201309781D0 (en) | 2013-05-31 | 2013-07-17 | Microsoft Corp | Echo cancellation |
US9357080B2 (en) | 2013-06-04 | 2016-05-31 | Broadcom Corporation | Spatial quiescence protection for multi-channel acoustic echo cancellation |
US20140363008A1 (en) | 2013-06-05 | 2014-12-11 | DSP Group | Use of vibration sensor in acoustic echo cancellation |
US9826307B2 (en) | 2013-06-11 | 2017-11-21 | Toa Corporation | Microphone array including at least three microphone units |
CN105493518B (zh) | 2013-06-18 | 2019-10-18 | 创新科技有限公司 | 麦克风系统以及用于麦克风系统中抑制不想要声音的方法 |
USD717272S1 (en) | 2013-06-24 | 2014-11-11 | Lg Electronics Inc. | Speaker |
USD743376S1 (en) | 2013-06-25 | 2015-11-17 | Lg Electronics Inc. | Speaker |
EP2819430A1 (en) | 2013-06-27 | 2014-12-31 | Speech Processing Solutions GmbH | Handheld mobile recording device with microphone characteristic selection means |
DE102013213717A1 (de) | 2013-07-12 | 2015-01-15 | Robert Bosch Gmbh | MEMS-Bauelement mit einer Mikrofonstruktur und Verfahren zu dessen Herstellung |
WO2015009748A1 (en) | 2013-07-15 | 2015-01-22 | Dts, Inc. | Spatial calibration of surround sound systems including listener position estimation |
US9257132B2 (en) | 2013-07-16 | 2016-02-09 | Texas Instruments Incorporated | Dominant speech extraction in the presence of diffused and directional noise sources |
USD756502S1 (en) | 2013-07-23 | 2016-05-17 | Applied Materials, Inc. | Gas diffuser assembly |
US9445196B2 (en) | 2013-07-24 | 2016-09-13 | Mh Acoustics Llc | Inter-channel coherence reduction for stereophonic and multichannel acoustic echo cancellation |
JP2015027124A (ja) | 2013-07-24 | 2015-02-05 | 船井電機株式会社 | 給電システム、電子機器、ケーブル、プログラム |
USD725631S1 (en) | 2013-07-31 | 2015-03-31 | Sol Republic Inc. | Speaker |
CN104347076B (zh) | 2013-08-09 | 2017-07-14 | 中国电信股份有限公司 | 网络音频丢包掩蔽方法和装置 |
US9319532B2 (en) | 2013-08-15 | 2016-04-19 | Cisco Technology, Inc. | Acoustic echo cancellation for audio system with bring your own devices (BYOD) |
US9203494B2 (en) | 2013-08-20 | 2015-12-01 | Broadcom Corporation | Communication device with beamforming and methods for use therewith |
USD726144S1 (en) | 2013-08-23 | 2015-04-07 | Panasonic Intellectual Property Management Co., Ltd. | Wireless speaker |
GB2517690B (en) | 2013-08-26 | 2017-02-08 | Canon Kk | Method and device for localizing sound sources placed within a sound environment comprising ambient noise |
USD729767S1 (en) | 2013-09-04 | 2015-05-19 | Samsung Electronics Co., Ltd. | Speaker |
US9549079B2 (en) | 2013-09-05 | 2017-01-17 | Cisco Technology, Inc. | Acoustic echo cancellation for microphone array with dynamically changing beam forming |
US20150070188A1 (en) | 2013-09-09 | 2015-03-12 | Soil IQ, Inc. | Monitoring device and method of use |
US9763004B2 (en) | 2013-09-17 | 2017-09-12 | Alcatel Lucent | Systems and methods for audio conferencing |
CN104464739B (zh) | 2013-09-18 | 2017-08-11 | 华为技术有限公司 | 音频信号处理方法及装置、差分波束形成方法及装置 |
US9591404B1 (en) | 2013-09-27 | 2017-03-07 | Amazon Technologies, Inc. | Beamformer design using constrained convex optimization in three-dimensional space |
US20150097719A1 (en) | 2013-10-03 | 2015-04-09 | Sulon Technologies Inc. | System and method for active reference positioning in an augmented reality environment |
US9466317B2 (en) | 2013-10-11 | 2016-10-11 | Facebook, Inc. | Generating a reference audio fingerprint for an audio signal associated with an event |
EP2866465B1 (en) | 2013-10-25 | 2020-07-22 | Harman Becker Automotive Systems GmbH | Spherical microphone array |
US20150118960A1 (en) | 2013-10-28 | 2015-04-30 | Aliphcom | Wearable communication device |
US9215543B2 (en) | 2013-12-03 | 2015-12-15 | Cisco Technology, Inc. | Microphone mute/unmute notification |
USD727968S1 (en) | 2013-12-17 | 2015-04-28 | Panasonic Intellectual Property Management Co., Ltd. | Digital video disc player |
US20150185825A1 (en) | 2013-12-30 | 2015-07-02 | Daqri, Llc | Assigning a virtual user interface to a physical object |
USD718731S1 (en) | 2014-01-02 | 2014-12-02 | Samsung Electronics Co., Ltd. | Television receiver |
JP6289121B2 (ja) | 2014-01-23 | 2018-03-07 | キヤノン株式会社 | 音響信号処理装置、動画撮影装置およびそれらの制御方法 |
EP3105942B1 (en) | 2014-02-10 | 2018-07-25 | Bose Corporation | Conversation assistance system |
WO2015123658A1 (en) | 2014-02-14 | 2015-08-20 | Sonic Blocks, Inc. | Modular quick-connect a/v system and methods thereof |
JP6281336B2 (ja) | 2014-03-12 | 2018-02-21 | 沖電気工業株式会社 | 音声復号化装置及びプログラム |
US9226062B2 (en) | 2014-03-18 | 2015-12-29 | Cisco Technology, Inc. | Techniques to mitigate the effect of blocked sound at microphone arrays in a telepresence device |
US9516412B2 (en) | 2014-03-28 | 2016-12-06 | Panasonic Intellectual Property Management Co., Ltd. | Directivity control apparatus, directivity control method, storage medium and directivity control system |
US20150281832A1 (en) | 2014-03-28 | 2015-10-01 | Panasonic Intellectual Property Management Co., Ltd. | Sound processing apparatus, sound processing system and sound processing method |
US9432768B1 (en) | 2014-03-28 | 2016-08-30 | Amazon Technologies, Inc. | Beam forming for a wearable computer |
US20150281834A1 (en) | 2014-03-28 | 2015-10-01 | Funai Electric Co., Ltd. | Microphone device and microphone unit |
GB2519392B (en) | 2014-04-02 | 2016-02-24 | Imagination Tech Ltd | Auto-tuning of an acoustic echo canceller |
GB2521881B (en) | 2014-04-02 | 2016-02-10 | Imagination Tech Ltd | Auto-tuning of non-linear processor threshold |
US10182280B2 (en) | 2014-04-23 | 2019-01-15 | Panasonic Intellectual Property Management Co., Ltd. | Sound processing apparatus, sound processing system and sound processing method |
USD743939S1 (en) | 2014-04-28 | 2015-11-24 | Samsung Electronics Co., Ltd. | Speaker |
US9414153B2 (en) | 2014-05-08 | 2016-08-09 | Panasonic Intellectual Property Management Co., Ltd. | Directivity control apparatus, directivity control method, storage medium and directivity control system |
EP2942975A1 (en) | 2014-05-08 | 2015-11-11 | Panasonic Corporation | Directivity control apparatus, directivity control method, storage medium and directivity control system |
WO2015181727A2 (en) | 2014-05-26 | 2015-12-03 | Vladimir Sherman | Methods circuits devices systems and associated computer executable code for acquiring acoustic signals |
USD740279S1 (en) | 2014-05-29 | 2015-10-06 | Compal Electronics, Inc. | Chromebook with trapezoid shape |
DE102014217344A1 (de) | 2014-06-05 | 2015-12-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Lautsprechersystem |
CN104036784B (zh) | 2014-06-06 | 2017-03-08 | 华为技术有限公司 | 一种回声消除方法及装置 |
US9451362B2 (en) | 2014-06-11 | 2016-09-20 | Honeywell International Inc. | Adaptive beam forming devices, methods, and systems |
JP1525681S (zh) | 2014-06-18 | 2017-05-22 | ||
US9589556B2 (en) | 2014-06-19 | 2017-03-07 | Yang Gao | Energy adjustment of acoustic echo replica signal for speech enhancement |
USD737245S1 (en) | 2014-07-03 | 2015-08-25 | Wall Audio, Inc. | Planar loudspeaker |
USD754092S1 (en) | 2014-07-11 | 2016-04-19 | Harman International Industries, Incorporated | Portable loudspeaker |
JP6149818B2 (ja) | 2014-07-18 | 2017-06-21 | 沖電気工業株式会社 | 収音再生システム、収音再生装置、収音再生方法、収音再生プログラム、収音システム及び再生システム |
US9949033B2 (en) | 2014-07-23 | 2018-04-17 | The Australian National University | Planar sensor array |
US9762742B2 (en) | 2014-07-24 | 2017-09-12 | Conexant Systems, Llc | Robust acoustic echo cancellation for loosely paired devices based on semi-blind multichannel demixing |
JP6210458B2 (ja) | 2014-07-30 | 2017-10-11 | パナソニックIpマネジメント株式会社 | 故障検知システム及び故障検知方法 |
JP6446893B2 (ja) | 2014-07-31 | 2019-01-09 | 富士通株式会社 | エコー抑圧装置、エコー抑圧方法及びエコー抑圧用コンピュータプログラム |
US20160031700A1 (en) | 2014-08-01 | 2016-02-04 | Pixtronix, Inc. | Microelectromechanical microphone |
US9326060B2 (en) | 2014-08-04 | 2016-04-26 | Apple Inc. | Beamforming in varying sound pressure level |
JP6202277B2 (ja) | 2014-08-05 | 2017-09-27 | パナソニックIpマネジメント株式会社 | 音声処理システム及び音声処理方法 |
CN106576205B (zh) | 2014-08-13 | 2019-06-21 | 三菱电机株式会社 | 回声消除装置 |
US9940944B2 (en) | 2014-08-19 | 2018-04-10 | Qualcomm Incorporated | Smart mute for a communication device |
EP2988527A1 (en) | 2014-08-21 | 2016-02-24 | Patents Factory Ltd. Sp. z o.o. | System and method for detecting location of sound sources in a three-dimensional space |
WO2016033269A1 (en) | 2014-08-28 | 2016-03-03 | Analog Devices, Inc. | Audio processing using an intelligent microphone |
JP2016051038A (ja) | 2014-08-29 | 2016-04-11 | 株式会社Jvcケンウッド | ノイズゲート装置 |
US10061009B1 (en) | 2014-09-30 | 2018-08-28 | Apple Inc. | Robust confidence measure for beamformed acoustic beacon for device tracking and localization |
US20160100092A1 (en) | 2014-10-01 | 2016-04-07 | Fortemedia, Inc. | Object tracking device and tracking method thereof |
US9521057B2 (en) | 2014-10-14 | 2016-12-13 | Amazon Technologies, Inc. | Adaptive audio stream with latency compensation |
GB2527865B (en) | 2014-10-30 | 2016-12-14 | Imagination Tech Ltd | Controlling operational characteristics of an acoustic echo canceller |
GB2525947B (en) | 2014-10-31 | 2016-06-22 | Imagination Tech Ltd | Automatic tuning of a gain controller |
US20160150315A1 (en) | 2014-11-20 | 2016-05-26 | GM Global Technology Operations LLC | System and method for echo cancellation |
KR101990370B1 (ko) | 2014-11-26 | 2019-06-18 | 한화테크윈 주식회사 | 카메라 시스템 및 카메라 시스템 동작 방법 |
US9654868B2 (en) | 2014-12-05 | 2017-05-16 | Stages Llc | Multi-channel multi-domain source identification and tracking |
US9860635B2 (en) | 2014-12-15 | 2018-01-02 | Panasonic Intellectual Property Management Co., Ltd. | Microphone array, monitoring system, and sound pickup setting method |
CN105790806B (zh) | 2014-12-19 | 2020-08-07 | 株式会社Ntt都科摩 | 混合波束赋形技术中的公共信号传输方法及装置 |
CN105812598B (zh) | 2014-12-30 | 2019-04-30 | 展讯通信(上海)有限公司 | 一种降低回声的方法及装置 |
US9525934B2 (en) | 2014-12-31 | 2016-12-20 | Stmicroelectronics Asia Pacific Pte Ltd. | Steering vector estimation for minimum variance distortionless response (MVDR) beamforming circuits, systems, and methods |
USD754103S1 (en) | 2015-01-02 | 2016-04-19 | Harman International Industries, Incorporated | Loudspeaker |
JP2016146547A (ja) | 2015-02-06 | 2016-08-12 | パナソニックIpマネジメント株式会社 | 収音システム及び収音方法 |
US20160249132A1 (en) | 2015-02-23 | 2016-08-25 | Invensense, Inc. | Sound source localization using sensor fusion |
US20160275961A1 (en) | 2015-03-18 | 2016-09-22 | Qualcomm Technologies International, Ltd. | Structure for multi-microphone speech enhancement system |
CN106162427B (zh) | 2015-03-24 | 2019-09-17 | 青岛海信电器股份有限公司 | 一种声音获取元件的指向性调整方法和装置 |
US9716944B2 (en) | 2015-03-30 | 2017-07-25 | Microsoft Technology Licensing, Llc | Adjustable audio beamforming |
US9924224B2 (en) | 2015-04-03 | 2018-03-20 | The Nielsen Company (Us), Llc | Methods and apparatus to determine a state of a media presentation device |
US10567827B2 (en) | 2015-04-10 | 2020-02-18 | Sennheiser Electronic Gmbh & Co. Kg | Method of detecting and synchronizing audio and video signals and audio/video detection and synchronization system |
USD784299S1 (en) | 2015-04-30 | 2017-04-18 | Shure Acquisition Holdings, Inc. | Array microphone assembly |
US9554207B2 (en) | 2015-04-30 | 2017-01-24 | Shure Acquisition Holdings, Inc. | Offset cartridge microphones |
US9565493B2 (en) | 2015-04-30 | 2017-02-07 | Shure Acquisition Holdings, Inc. | Array microphone system and method of assembling the same |
US10602265B2 (en) | 2015-05-04 | 2020-03-24 | Rensselaer Polytechnic Institute | Coprime microphone array system |
US10028053B2 (en) | 2015-05-05 | 2018-07-17 | Wave Sciences, LLC | Portable computing device microphone array |
CN107534725B (zh) | 2015-05-19 | 2020-06-16 | 华为技术有限公司 | 一种语音信号处理方法及装置 |
USD801285S1 (en) | 2015-05-29 | 2017-10-31 | Optical Cable Corporation | Ceiling mount box |
US10412483B2 (en) | 2015-05-30 | 2019-09-10 | Audix Corporation | Multi-element shielded microphone and suspension system |
US10452339B2 (en) | 2015-06-05 | 2019-10-22 | Apple Inc. | Mechanism for retrieval of previously captured audio |
TWD179475S (zh) | 2015-07-14 | 2016-11-11 | 宏碁股份有限公司 | 筆記型電腦之部分 |
US10909384B2 (en) | 2015-07-14 | 2021-02-02 | Panasonic Intellectual Property Management Co., Ltd. | Monitoring system and monitoring method |
CN106403016B (zh) | 2015-07-30 | 2019-07-26 | Lg电子株式会社 | 空调机的室内机 |
EP3131311B1 (en) | 2015-08-14 | 2019-06-19 | Nokia Technologies Oy | Monitoring |
US20170064451A1 (en) | 2015-08-25 | 2017-03-02 | New York University | Ubiquitous sensing environment |
US9655001B2 (en) | 2015-09-24 | 2017-05-16 | Cisco Technology, Inc. | Cross mute for native radio channels |
US20180292079A1 (en) | 2015-10-07 | 2018-10-11 | Tony J. Branham | Lighted mirror with sound system |
US9961437B2 (en) | 2015-10-08 | 2018-05-01 | Signal Essence, LLC | Dome shaped microphone array with circularly distributed microphones |
USD787481S1 (en) | 2015-10-21 | 2017-05-23 | Cisco Technology, Inc. | Microphone support |
CN105355210B (zh) | 2015-10-30 | 2020-06-23 | 百度在线网络技术(北京)有限公司 | 用于远场语音识别的预处理方法和装置 |
KR102070965B1 (ko) | 2015-11-18 | 2020-01-29 | 후아웨이 테크놀러지 컴퍼니 리미티드 | 소리 신호를 강화하는 소리 신호 처리 장치 및 방법 |
US11064291B2 (en) | 2015-12-04 | 2021-07-13 | Sennheiser Electronic Gmbh & Co. Kg | Microphone array system |
US9894434B2 (en) | 2015-12-04 | 2018-02-13 | Sennheiser Electronic Gmbh & Co. Kg | Conference system with a microphone array system and a method of speech acquisition in a conference system |
US9479885B1 (en) | 2015-12-08 | 2016-10-25 | Motorola Mobility Llc | Methods and apparatuses for performing null steering of adaptive microphone array |
US9641935B1 (en) | 2015-12-09 | 2017-05-02 | Motorola Mobility Llc | Methods and apparatuses for performing adaptive equalization of microphone arrays |
US9479627B1 (en) | 2015-12-29 | 2016-10-25 | Gn Audio A/S | Desktop speakerphone |
USD788073S1 (en) | 2015-12-29 | 2017-05-30 | Sdi Technologies, Inc. | Mono bluetooth speaker |
CN105548998B (zh) | 2016-02-02 | 2018-03-30 | 北京地平线机器人技术研发有限公司 | 基于麦克阵列的声音定位装置和方法 |
US9721582B1 (en) | 2016-02-03 | 2017-08-01 | Google Inc. | Globally optimized least-squares post-filtering for speech enhancement |
JP6574529B2 (ja) | 2016-02-04 | 2019-09-11 | ゾン シンシァォZENG Xinxiao | 音声通信システム及び方法 |
US10537300B2 (en) | 2016-04-25 | 2020-01-21 | Wisconsin Alumni Research Foundation | Head mounted microphone array for tinnitus diagnosis |
US9851938B2 (en) | 2016-04-26 | 2017-12-26 | Analog Devices, Inc. | Microphone arrays and communication systems for directional reception |
USD819607S1 (en) | 2016-04-26 | 2018-06-05 | Samsung Electronics Co., Ltd. | Microphone |
EP3253075B1 (en) | 2016-05-30 | 2019-03-20 | Oticon A/s | A hearing aid comprising a beam former filtering unit comprising a smoothing unit |
GB201609784D0 (en) | 2016-06-03 | 2016-07-20 | Craven Peter G And Travis Christopher | Microphone array providing improved horizontal directivity |
US9659576B1 (en) | 2016-06-13 | 2017-05-23 | Biamp Systems Corporation | Beam forming and acoustic echo cancellation with mutual adaptation control |
ITUA20164622A1 (it) | 2016-06-23 | 2017-12-23 | St Microelectronics Srl | Procedimento di beamforming basato su matrici di microfoni e relativo apparato |
EP3488439B1 (en) | 2016-07-22 | 2021-08-11 | Dolby Laboratories Licensing Corporation | Network-based processing and distribution of multimedia content of a live musical performance |
USD841589S1 (en) | 2016-08-03 | 2019-02-26 | Gedia Gebrueder Dingerkus Gmbh | Housings for electric conductors |
CN106251857B (zh) | 2016-08-16 | 2019-08-20 | 青岛歌尔声学科技有限公司 | 声源方向判断装置、方法及麦克风指向性调节系统、方法 |
JP6548619B2 (ja) | 2016-08-31 | 2019-07-24 | ミネベアミツミ株式会社 | モータ制御装置および脱調状態検出方法 |
US9628596B1 (en) | 2016-09-09 | 2017-04-18 | Sorenson Ip Holdings, Llc | Electronic device including a directional microphone |
US10454794B2 (en) | 2016-09-20 | 2019-10-22 | Cisco Technology, Inc. | 3D wireless network monitoring using virtual reality and augmented reality |
US9794720B1 (en) | 2016-09-22 | 2017-10-17 | Sonos, Inc. | Acoustic position measurement |
JP1580363S (zh) | 2016-09-27 | 2017-07-03 | ||
US10820097B2 (en) | 2016-09-29 | 2020-10-27 | Dolby Laboratories Licensing Corporation | Method, systems and apparatus for determining audio representation(s) of one or more audio sources |
US10475471B2 (en) | 2016-10-11 | 2019-11-12 | Cirrus Logic, Inc. | Detection of acoustic impulse events in voice applications using a neural network |
US9930448B1 (en) | 2016-11-09 | 2018-03-27 | Northwestern Polytechnical University | Concentric circular differential microphone arrays and associated beamforming |
US9980042B1 (en) | 2016-11-18 | 2018-05-22 | Stages Llc | Beamformer direction of arrival and orientation analysis system |
KR20190085924A (ko) | 2016-11-21 | 2019-07-19 | 하만 베커 오토모티브 시스템즈 게엠베하 | 빔 조향 |
GB2557219A (en) | 2016-11-30 | 2018-06-20 | Nokia Technologies Oy | Distributed audio capture and mixing controlling |
USD811393S1 (en) | 2016-12-28 | 2018-02-27 | Samsung Display Co., Ltd. | Display device |
EP3563562B1 (en) | 2016-12-30 | 2022-10-12 | Harman Becker Automotive Systems GmbH | Acoustic echo canceling |
US10552014B2 (en) | 2017-01-10 | 2020-02-04 | Cast Group Of Companies Inc. | Systems and methods for tracking and interacting with zones in 3D space |
US10021515B1 (en) | 2017-01-12 | 2018-07-10 | Oracle International Corporation | Method and system for location estimation |
US10097920B2 (en) | 2017-01-13 | 2018-10-09 | Bose Corporation | Capturing wide-band audio using microphone arrays and passive directional acoustic elements |
US10367948B2 (en) | 2017-01-13 | 2019-07-30 | Shure Acquisition Holdings, Inc. | Post-mixing acoustic echo cancellation systems and methods |
CN106851036B (zh) | 2017-01-20 | 2019-08-30 | 广州广哈通信股份有限公司 | 一种共线语音会议分散混音系统 |
WO2018140444A1 (en) | 2017-01-26 | 2018-08-02 | Walmart Apollo, Llc | Shopping cart and associated systems and methods |
KR102377356B1 (ko) | 2017-01-27 | 2022-03-21 | 슈어 애쿼지션 홀딩스, 인코포레이티드 | 어레이 마이크로폰 모듈 및 시스템 |
US10389885B2 (en) | 2017-02-01 | 2019-08-20 | Cisco Technology, Inc. | Full-duplex adaptive echo cancellation in a conference endpoint |
CN110235428B (zh) | 2017-02-02 | 2022-02-25 | 伯斯有限公司 | 会议室音频设置 |
US10366702B2 (en) | 2017-02-08 | 2019-07-30 | Logitech Europe, S.A. | Direction detection device for acquiring and processing audible input |
JP6599389B2 (ja) | 2017-03-08 | 2019-10-30 | ヤンマー株式会社 | 防振装置及び防振エンジン |
JP7163300B2 (ja) | 2017-03-09 | 2022-10-31 | アバネラ コーポレイション | リアルタイム音響プロセッサ |
USD860319S1 (en) | 2017-04-21 | 2019-09-17 | Any Pte. Ltd | Electronic display unit |
US20180313558A1 (en) | 2017-04-27 | 2018-11-01 | Cisco Technology, Inc. | Smart ceiling and floor tiles |
CN107221336B (zh) | 2017-05-13 | 2020-08-21 | 深圳海岸语音技术有限公司 | 一种增强目标语音的装置及其方法 |
US10165386B2 (en) | 2017-05-16 | 2018-12-25 | Nokia Technologies Oy | VR audio superzoom |
US10971169B2 (en) | 2017-05-19 | 2021-04-06 | Audio-Technica Corporation | Sound signal processing device |
US10153744B1 (en) | 2017-08-02 | 2018-12-11 | 2236008 Ontario Inc. | Automatically tuning an audio compressor to prevent distortion |
US11798544B2 (en) | 2017-08-07 | 2023-10-24 | Polycom, Llc | Replying to a spoken command |
KR102478951B1 (ko) | 2017-09-04 | 2022-12-20 | 삼성전자주식회사 | 비선형 특성을 갖는 오디오 필터를 이용하여 오디오 신호를 처리하는 방법 및 장치 |
US9966059B1 (en) | 2017-09-06 | 2018-05-08 | Amazon Technologies, Inc. | Reconfigurale fixed beam former using given microphone array |
DE112017007800T5 (de) | 2017-09-07 | 2020-06-25 | Mitsubishi Electric Corporation | Störgeräuscheliminierungseinrichtung und Störgeräuscheliminierungsverfahren |
USD883952S1 (en) | 2017-09-11 | 2020-05-12 | Clean Energy Labs, Llc | Audio speaker |
EP3688351B1 (en) | 2017-09-27 | 2023-03-15 | Engineered Controls International, LLC | Combination regulator valve |
USD888020S1 (en) | 2017-10-23 | 2020-06-23 | Raven Technology (Beijing) Co., Ltd. | Speaker cover |
US20190166424A1 (en) | 2017-11-28 | 2019-05-30 | Invensense, Inc. | Microphone mesh network |
USD860997S1 (en) | 2017-12-11 | 2019-09-24 | Crestron Electronics, Inc. | Lid and bezel of flip top unit |
EP3499915B1 (en) | 2017-12-13 | 2023-06-21 | Oticon A/s | A hearing device and a binaural hearing system comprising a binaural noise reduction system |
CN108172235B (zh) | 2017-12-26 | 2021-05-14 | 南京信息工程大学 | 基于维纳后置滤波的ls波束形成混响抑制方法 |
US10979805B2 (en) | 2018-01-04 | 2021-04-13 | Stmicroelectronics, Inc. | Microphone array auto-directive adaptive wideband beamforming using orientation information from MEMS sensors |
USD864136S1 (en) | 2018-01-05 | 2019-10-22 | Samsung Electronics Co., Ltd. | Television receiver |
US10720173B2 (en) | 2018-02-21 | 2020-07-21 | Bose Corporation | Voice capture processing modified by back end audio processing state |
JP7022929B2 (ja) | 2018-02-26 | 2022-02-21 | パナソニックIpマネジメント株式会社 | ワイヤレスマイクシステム、受信機及び無線同期方法 |
USD857873S1 (en) | 2018-03-02 | 2019-08-27 | Panasonic Intellectual Property Management Co., Ltd. | Ceiling ventilation fan |
US10566008B2 (en) | 2018-03-02 | 2020-02-18 | Cirrus Logic, Inc. | Method and apparatus for acoustic echo suppression |
US20190297422A1 (en) * | 2018-03-20 | 2019-09-26 | 3Dio, Llc | Binaural recording device with directional enhancement |
US20190295540A1 (en) | 2018-03-23 | 2019-09-26 | Cirrus Logic International Semiconductor Ltd. | Voice trigger validator |
CN208190895U (zh) | 2018-03-23 | 2018-12-04 | 阿里巴巴集团控股有限公司 | 拾音模组、电子设备及贩卖机 |
CN108510987B (zh) | 2018-03-26 | 2020-10-23 | 北京小米移动软件有限公司 | 语音处理方法及装置 |
EP3553968A1 (en) | 2018-04-13 | 2019-10-16 | Peraso Technologies Inc. | Single-carrier wideband beamforming method and system |
US11494158B2 (en) | 2018-05-31 | 2022-11-08 | Shure Acquisition Holdings, Inc. | Augmented reality microphone pick-up pattern visualization |
CN112334981B (zh) | 2018-05-31 | 2024-08-13 | 舒尔获得控股公司 | 用于自动混合的智能语音启动的系统及方法 |
EP3804356A1 (en) | 2018-06-01 | 2021-04-14 | Shure Acquisition Holdings, Inc. | Pattern-forming microphone array |
US11297423B2 (en) | 2018-06-15 | 2022-04-05 | Shure Acquisition Holdings, Inc. | Endfire linear array microphone |
WO2019240940A1 (en) | 2018-06-15 | 2019-12-19 | Shure Acquisition Holdings, Inc. | Systems and methods for integrated conferencing platform |
US10210882B1 (en) | 2018-06-25 | 2019-02-19 | Biamp Systems, LLC | Microphone array with automated adaptive beam tracking |
EP3588982B1 (en) | 2018-06-25 | 2022-07-13 | Oticon A/s | A hearing device comprising a feedback reduction system |
CN109087664B (zh) | 2018-08-22 | 2022-09-02 | 中国科学技术大学 | 语音增强方法 |
WO2020061353A1 (en) | 2018-09-20 | 2020-03-26 | Shure Acquisition Holdings, Inc. | Adjustable lobe shape for array microphones |
US11109133B2 (en) | 2018-09-21 | 2021-08-31 | Shure Acquisition Holdings, Inc. | Array microphone module and system |
US11218802B1 (en) | 2018-09-25 | 2022-01-04 | Amazon Technologies, Inc. | Beamformer rotation |
EP3629602A1 (en) | 2018-09-27 | 2020-04-01 | Oticon A/s | A hearing device and a hearing system comprising a multitude of adaptive two channel beamformers |
TWI837180B (zh) | 2018-10-18 | 2024-04-01 | 日商索尼半導體解決方案公司 | 通信系統、傳送裝置及接收裝置 |
JP7334406B2 (ja) | 2018-10-24 | 2023-08-29 | ヤマハ株式会社 | アレイマイクロフォンおよび収音方法 |
US10972835B2 (en) | 2018-11-01 | 2021-04-06 | Sennheiser Electronic Gmbh & Co. Kg | Conference system with a microphone array system and a method of speech acquisition in a conference system |
US10887467B2 (en) | 2018-11-20 | 2021-01-05 | Shure Acquisition Holdings, Inc. | System and method for distributed call processing and audio reinforcement in conferencing environments |
CN109727604B (zh) | 2018-12-14 | 2023-11-10 | 上海蔚来汽车有限公司 | 用于语音识别前端的频域回声消除方法及计算机储存介质 |
US10959018B1 (en) | 2019-01-18 | 2021-03-23 | Amazon Technologies, Inc. | Method for autonomous loudspeaker room adaptation |
CN109862200B (zh) | 2019-02-22 | 2021-02-12 | 北京达佳互联信息技术有限公司 | 语音处理方法、装置、电子设备及存储介质 |
US11457309B2 (en) | 2019-02-27 | 2022-09-27 | Crestron Electronics, Inc. | Millimeter wave sensor used to optimize performance of a beamforming microphone array |
CN110010147B (zh) | 2019-03-15 | 2021-07-27 | 厦门大学 | 一种麦克风阵列语音增强的方法和系统 |
JP7341685B2 (ja) | 2019-03-19 | 2023-09-11 | キヤノン株式会社 | 電子機器、電子機器の制御方法、プログラム、及び、記憶媒体 |
TW202044236A (zh) | 2019-03-21 | 2020-12-01 | 美商舒爾獲得控股公司 | 具有抑制功能的波束形成麥克風瓣之自動對焦、區域內自動對焦、及自動配置 |
EP3942842A1 (en) | 2019-03-21 | 2022-01-26 | Shure Acquisition Holdings, Inc. | Housings and associated design features for ceiling array microphones |
US11558693B2 (en) | 2019-03-21 | 2023-01-17 | Shure Acquisition Holdings, Inc. | Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality |
USD924189S1 (en) | 2019-04-29 | 2021-07-06 | Lg Electronics Inc. | Television receiver |
USD900072S1 (en) | 2019-05-15 | 2020-10-27 | Shure Acquisition Holdings, Inc. | Housing for a ceiling array microphone |
USD900074S1 (en) | 2019-05-15 | 2020-10-27 | Shure Acquisition Holdings, Inc. | Housing for a ceiling array microphone |
USD900073S1 (en) | 2019-05-15 | 2020-10-27 | Shure Acquisition Holdings, Inc. | Housing for a ceiling array microphone |
USD900071S1 (en) | 2019-05-15 | 2020-10-27 | Shure Acquisition Holdings, Inc. | Housing for a ceiling array microphone |
USD900070S1 (en) | 2019-05-15 | 2020-10-27 | Shure Acquisition Holdings, Inc. | Housing for a ceiling array microphone |
US11127414B2 (en) | 2019-07-09 | 2021-09-21 | Blackberry Limited | System and method for reducing distortion and echo leakage in hands-free communication |
US10984815B1 (en) | 2019-09-27 | 2021-04-20 | Cypress Semiconductor Corporation | Techniques for removing non-linear echo in acoustic echo cancellers |
KR102647154B1 (ko) | 2019-12-31 | 2024-03-14 | 삼성전자주식회사 | 디스플레이 장치 |
JP1760160S (ja) | 2022-10-18 | 2023-12-25 | 光ファイバ | |
JP1752403S (ja) | 2022-12-19 | 2023-09-05 | フライパン | |
JP1779748S (ja) | 2024-01-09 | 2024-09-12 | 壁直付け灯 |
-
2019
- 2019-05-10 EP EP19727213.1A patent/EP3804356A1/en active Pending
- 2019-05-10 US US16/409,239 patent/US11523212B2/en active Active
- 2019-05-10 WO PCT/US2019/031833 patent/WO2019231632A1/en unknown
- 2019-05-10 CN CN201980043283.9A patent/CN112335261B/zh active Active
- 2019-05-30 TW TW108118668A patent/TW202005415A/zh unknown
-
2022
- 2022-10-26 US US18/049,900 patent/US11800281B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US11800281B2 (en) | 2023-10-24 |
US20230063105A1 (en) | 2023-03-02 |
WO2019231632A1 (en) | 2019-12-05 |
US20190373362A1 (en) | 2019-12-05 |
US11523212B2 (en) | 2022-12-06 |
EP3804356A1 (en) | 2021-04-14 |
CN112335261B (zh) | 2023-07-18 |
CN112335261A (zh) | 2021-02-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TW202005415A (zh) | 圖案形成麥克風陣列 | |
US12063473B2 (en) | Array microphone module and system | |
US11800280B2 (en) | Steerable speaker array, system and method for the same | |
TWI814834B (zh) | 端射線性陣列麥克風 | |
AU2022202279B2 (en) | Array microphone system and method of assembling the same | |
US11109133B2 (en) | Array microphone module and system | |
US8340315B2 (en) | Assembly, system and method for acoustic transducers | |
US11750972B2 (en) | One-dimensional array microphone with improved directivity | |
US20080219485A1 (en) | Apparatus, System and Method for Acoustic Signals | |
US12028678B2 (en) | Proximity microphone | |
US20240323596A1 (en) | Proximity microphone |