JP2008103851A5 - - Google Patents

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JP2008103851A5
JP2008103851A5 JP2006282935A JP2006282935A JP2008103851A5 JP 2008103851 A5 JP2008103851 A5 JP 2008103851A5 JP 2006282935 A JP2006282935 A JP 2006282935A JP 2006282935 A JP2006282935 A JP 2006282935A JP 2008103851 A5 JP2008103851 A5 JP 2008103851A5
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Japan
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sound
masking
signal
audio
speaker units
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JP2006282935A
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Japanese (ja)
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JP2008103851A (en
JP4919021B2 (en
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Claims (5)

複数のスピーカユニットを配列して成るスピーカアレイと、
複数の音声信号を前記複数のスピーカユニットに対して分配し、これらのスピーカユニットから放音する各音声信号の放音タイミングを制御して、前記スピーカアレイからそれぞれ異なる方向に指向性を有する音声ビームを放音させる音声信号処理手段と、
各音声ビームについて、他方向に放音されている音声ビームをマスクするマスキング音声信号を出力するマスキング音声出力手段と、
を備えた音声出力装置。 A speaker array formed by arranging a plurality of speaker units;
A plurality of sound signals are distributed to the plurality of speaker units, sound emission timings of the sound signals emitted from these speaker units are controlled, and sound beams having directivity in different directions from the speaker array. Audio signal processing means for emitting sound,
For each sound beam, a masking sound output means for outputting a masking sound signal for masking the sound beam emitted in the other direction;
An audio output device comprising: 前記音声信号処理手段は、前記マスキング音声出力手段が出力したマスキング音声信号を、前記スピーカアレイの複数のスピーカユニットに対して分配し、これらのスピーカユニットから放音するマスキング音声の放音タイミングを制御して、マスキング音声ビームとして放音させることを特徴とする請求項１に記載の音声出力装置。  The sound signal processing means distributes the masking sound signal output from the masking sound output means to a plurality of speaker units of the speaker array, and controls sound emission timing of the masking sound emitted from these speaker units. The sound output apparatus according to claim 1, wherein a sound is emitted as a masking sound beam. 前記マスキング音声出力手段は、各音声ビームに含まれる周波数帯域を通過させるフィルタリング処理を行うフィルタ手段を備えた請求項１または２に記載の音声出力装置。 The voice output apparatus according to claim 1, wherein the masking voice output unit includes a filter unit that performs a filtering process of passing a frequency band included in each voice beam . 前記複数の音声信号を加算した加算音声信号の信号レベルを検出する信号レベル検出手段と、  Signal level detection means for detecting a signal level of an added audio signal obtained by adding the plurality of audio signals;
前記加算音声信号の信号レベルに応じて設定した増幅率で、前記フィルタリング処理を行ったマスキング音声信号を増幅する増幅手段と、  Amplifying means for amplifying the masking sound signal subjected to the filtering process at an amplification factor set according to the signal level of the added sound signal;
を備えた請求項３に記載の音声出力装置。  The audio output device according to claim 3, further comprising: 前記加算音声信号の信号レベルの変動状態に応じて前記増幅手段の時定数を変更する時定数設定手段を備えた請求項４に記載の音声出力装置。 5. The audio output device according to claim 4 , further comprising time constant setting means for changing a time constant of the amplification means in accordance with a fluctuation state of a signal level of the added audio signal.
JP2006282935A 2006-10-17 2006-10-17 Audio output device Active JP4919021B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006282935A JP4919021B2 (en) 2006-10-17 2006-10-17 Audio output device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006282935A JP4919021B2 (en) 2006-10-17 2006-10-17 Audio output device

Related Child Applications (1)

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JP2010171778A Division JP2010266895A (en) 2010-07-30 2010-07-30 Voice output device

Publications (3)

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JP2008103851A JP2008103851A (en) 2008-05-01
JP2008103851A5 true JP2008103851A5 (en) 2010-09-16
JP4919021B2 JP4919021B2 (en) 2012-04-18

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Family Applications (1)

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JP2006282935A Active JP4919021B2 (en) 2006-10-17 2006-10-17 Audio output device

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WO2009156928A1 (en) * 2008-06-25 2009-12-30 Koninklijke Philips Electronics N.V. Sound masking system and method of operation therefor
US20110096941A1 (en) * 2009-10-28 2011-04-28 Alcatel-Lucent Usa, Incorporated Self-steering directional loudspeakers and a method of operation thereof
JP2011211266A (en) * 2010-03-29 2011-10-20 Hitachi Omron Terminal Solutions Corp Speaker array device
JP5662712B2 (en) * 2010-06-25 2015-02-04 日本板硝子環境アメニティ株式会社 Voice changing device, voice changing method and voice information secret talk system
JP5644278B2 (en) * 2010-09-02 2014-12-24 ヤマハ株式会社 Maska sound generator and program
JP2012093705A (en) * 2010-09-28 2012-05-17 Yamaha Corp Speech output device
JP5598211B2 (en) * 2010-09-29 2014-10-01 ヤマハ株式会社 Maska sound output control device
JP5644382B2 (en) * 2010-11-05 2014-12-24 ヤマハ株式会社 Audio processing device
JP5955340B2 (en) 2011-12-26 2016-07-20 日本板硝子環境アメニティ株式会社 Acoustic system
US10448161B2 (en) 2012-04-02 2019-10-15 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for gestural manipulation of a sound field
KR102666664B1 (en) 2017-09-07 2024-05-17 필립모리스 프로덕츠 에스.에이. Aerosol-generating devices and associated user interfaces and methods for use with different substrates
KR102466134B1 (en) * 2018-06-26 2022-11-10 엘지디스플레이 주식회사 Display apparatus
EP3839941A4 (en) * 2018-08-13 2021-10-06 Sony Group Corporation Signal processing device and method, and program
US10418019B1 (en) * 2019-03-22 2019-09-17 GM Global Technology Operations LLC Method and system to mask occupant sounds in a ride sharing environment
JPWO2023203756A1 (en) * 2022-04-22 2023-10-26

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JP2523367B2 (en) * 1989-03-03 1996-08-07 日本電信電話株式会社 Audio playback method
JPH06175666A (en) * 1992-12-04 1994-06-24 Daiken Trade & Ind Co Ltd Partition and room structure for masking
JP3719690B2 (en) * 1995-12-20 2005-11-24 富士通テン株式会社 In-vehicle audio equipment
JPH1127604A (en) * 1997-07-01 1999-01-29 Sanyo Electric Co Ltd Audio reproducing device
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JP2005173137A (en) * 2003-12-10 2005-06-30 Yamaha Corp Karaoke machine
JP4349123B2 (en) * 2003-12-25 2009-10-21 ヤマハ株式会社 Audio output device

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