201026099 六、發明說明： 【發明所屬之技術領域】 本發明係有關P種噪音處理聲學傳感裝置 傳感裝置 式消噪模式與後饋式料模式之間切換的噪音處理』 【先前技術】 噪音所帶給人類在聽覺上的干擾，不僅容易產 情，長誠於噪音㈣境下，甚至會造錢力永久㈣破=因 =近年來胁耻噪音的猶鹤__新，射在耳機領域 當中’早期是藉由賴上的改進，選賴音效紐好的耳殼或耳 罩’通常這樣的耳機能夠隔離800Hz以上的噪音，但是對於8咖 町的料，_是對於低_音隔音效果秘，故此類慣稱為 「被動消噪」的技術始終無法完整地解決噪音的問題；緣因於此， 近期被廣泛地提出的「主動消噪」之電子式消噪技術，即是為了 改善「被動㈣」之不足，而此「絲料」技術目前可分為以 下兩種：前饋式消噪技術(Feed_Forward)及後饋式消噪技 (Feed-Back)。 、 請參閱第1A _示，為·式料耳機〗之結構示意圖。耳 機1中配置-麥克風10、一消噪電路n及一揚聲器12，揚聲哭 12係朝向使用者之耳道，麥克風1G接收外界噪音後，經由消噪^ 路產生一個反向噪音訊號來抵消耳機丨中聽到的噪音。此實 式的優點是麥克風1G所接收乃純噪音，並不會接收揚聲器12輕 201026099 出的聲日’所以形成—侧迴路系統n 盪或迴音，故可社地_電魅料賴2路的振 耳殼並在耳如乡:欠反 ^找’㈣音在經過 …必隹， 具大小和相位已經發生變化，來古® 10所採本到的臂音與耳殼内之噪 克風 的方向性很強，所錄難藉電_ν ^ ’力吐綠喿音 的消噪要求。 桃献來自不同方向的聲音 請參_m_示，為_式柄 ❹ 機2中亦配置-麥克風2G、—消雜路21及—揚 器22係朝向使用者之χ、# 22，％聲 Η，因絲古Γ 克風2〇設置在揚聲器22與耳道之 -歧20在耳殼内所接收到的嗓音與人耳聽到的嗓立一 致’且經由消嗓電路21將哮立、、声、士 ”曰 哭22發聲，^ 1 4纽Α位變換後再驅動揚聲 ^ H域_路㈣之設計，麥姐 Ϊ感故信號f聲音信號疊加後可產生高=== "、^至人耳％所聽到的噪音最小；輕;娜式消啐耳 ==噪效果’然而由於麥克風2。設置在== :〜、輸出轉響應曲線會在高頻的範圍產生共振衰減，對於- 聽音樂的使用者而言，加人消噪功能的耳機反而使 钎原本聲日輪㈣效果打折，因此其效能也未臻理想。 【發明内容】 .有L於上轉題’本㈣之目的在於提供—健合前饋式制 噪技術及後饋式㈣技術之聲學傳感器，而得以藉由兩種不同 制噪技術的互補，而達截長補短之效。 緣是，為達上述目的，本發明聲學傳感裝置包括—本體，一 201026099 揚聲器、—麥克風及-訊號處理器。本體具有n-出音Q 及一入音口，腔室與出音口相連通，揚聲器設置在腔室内並得將 其產生的聲音喊自^音至外界，麥克風設置在本體鄰近 於揚聲器之位置，其可選擇性地與腔室或人音口連通，訊號處理 器則是同時電性連接於揚聲器及麥克風，當麥克風與腔室連通 時’麥克風接收腔室内聲音訊號並傳送至訊號處理器，且訊號處 理器乃針對被定義為噪音之聲音訊號輸出一反相訊號至揚聲器义 反之田麥克風與入音口連通而不再與腔室連通時，麥克風改為 ，收外界聲音城轉駐峨處嗎，且喊處理器乃針對被 足義為策音之聲音訊號輸出一反相訊號至揚聲器。 由於本發崎學傳歧置之麥克縣可選雜地連通於腔室 轉收揚聲ϋ之聲音碱，献連通於外私触外界之聲音訊 號’、在接收外界聲音訊號時係得與訊號處理器形成一前饋式消澡 拉式’而在概縣ϋ聲音猶時係得與峨處理_成一後饋 式㈣模式，耻，無論是絲者韻費者，可祕生產時或使 用㈣行依據所需要的聲音表現來決定調整切換前饋模式或後饋 【實施方式】 二下將參照相_式’酬依據本發日峨佳實關之一種聲 予得感裝置。 聲學傳感裝置之 請參照第2圖所示，為本發明第—實施例之 201026099 .=面不意圖。圖中顯示聲學傳感裝置3係可為-耳機，盆包括有 ’―本㈣、-揚勒40、-麥克風5G及—峨處理⑽；本體 〕H .31'_出音σ32及—人音口33’1腔室幻與出音 二：為相連通’揚聲器4G設置在腔室31内，而麥克風％設置 鄰近揚聲器4Q位置之—容置空間別當中，並且麥克風 擇性地與腔室31或人音口 33相連通，訊號處理器6〇電性 ，於揚聲器40及麥克風5σ，當麥克風5〇與腔室％連通時，麥 ^ 5〇接收腔.室31内之聲音訊號以傳送錢號處媽，且訊 鱗被定義為噪音之聲音職翻—反她號至揚 h 士0 ’反之，當麥克風5G與人音σ 33連通，而不再與腔室Μ 連通時’麥克風5〇改為接收外界之聲音訊號以傳送至訊號處理器 .且輯處理器6〇乃針對被絲㈣音之聲音訊 訊號至揚聲器4〇。 汉相 /者’上述本體30另具有一導音管35，且導音管％ 一端係 連通於腔室31，另一端即為出音口 32，在導音管％之出音口％ 歧置有-阻尼件36以阻絕沙塵的進入，而導音管％外則套設 有一耳塞件37 ’耳塞件37係·鄕性之麵以製成，方便使用又 者配載聲學傳感裝置3時，得以藉由耳塞件37塞入至耳道當中。 、=外’在本實施例當中，控制麥克風5〇選擇性地與腔室幻 或入θ 口 33連通的技術，乃是透過設置在腔室31與入音口幻之 間的—開關70所達成，且開關7〇上設置有一第—通道^及 二通道72 ’當移動開關70至—第一位置時’第—通㈣係與腔 201026099 室31及容置空間34連通，並使得麥克風5〇得以接收腔室幻内 之聲音訊號，而當移動開關70至一第二位置時，第二通道Μ係 與入音π 33及容置㈣34連通，並使得麥克風Μ得以接收入音 口 33之聲音訊號。 曰201026099 VI. Description of the Invention: [Technical Field] The present invention relates to noise processing for switching between a noise canceling mode and a feedforward material mode of a P-type noise processing acoustic sensing device. [Prior Art] Noise The human hearing disturbance is not only easy to produce, but also sincerely in the noise (4), and even make money forever (four) broken = due to = recent shameful noise of the crane __ new, shot in the field of headphones Among them, 'early is improved by the improvement, choose the earphones or earmuffs with good sound effects. Usually such earphones can isolate noise above 800Hz, but for 8 cafés, _ is for low _ sound insulation effect This is why the technology known as "passive denoising" has not been able to completely solve the noise problem. For this reason, the "active denoising" electronic denoising technology that has been widely proposed in the near future is to improve The lack of "passive (four)", and this "wire" technology can be divided into the following two types: feed-forward denoising technology (Feed_Forward) and feed-back denoising technology (Feed-Back). Please refer to the structure of the 1A _, which is the structure of the headset. The earphone 1 is configured with a microphone 10, a noise canceling circuit n and a speaker 12, and the speaker 12 is directed toward the ear canal of the user. After receiving the external noise, the microphone 1G generates a reverse noise signal to cancel the noise signal. The noise heard in the headset. The advantage of this real type is that the microphone 1G receives pure noise, and does not receive the sound of the speaker 12 light 201026099. So it forms a side loop system n sway or echo, so it can be _ _ _ The ear shell is in the ear like a town: owe to the opposite ^ find '(four) sound in the passage of ... must be, the size and phase have changed, come to the ancient | 10 to the arm sound and the noise in the ear shell The direction is very strong, and it is difficult to record the _ν ^ 'force to suppress the noise of the green voice. Peach offers sounds from different directions, please refer to _m_, for _-style handles, machine 2 is also configured - microphone 2G, - elimination circuit 21 and - lifter 22 are facing the user, # 22, % sound Η 因 因 因 因 因 因 因 因 因 因 因 因 因 因 因 因 因 因 因 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器 扬声器Sound, gentleman" crying 22 voices, ^ 1 4 Newton position transformation and then drive the sound ^ H domain _ road (four) design, Mai sister Ϊ feeling signal f signal superimposed can produce high === " ^ The noise heard by the human ear is the smallest; light; Na-style eliminates the ear == noise effect' However, due to the microphone 2. Set at ==: ~, the output-transfer response curve will produce resonance attenuation in the high-frequency range, for - For the user who listens to music, the earphone with the noise canceling function makes the original sound of the original sound wheel (4) discounted, so its performance is not satisfactory. [Summary of the Invention] There is a purpose of L in the above question (4) It is provided with a hybrid feedforward noise-making technology and a feed-forward (four) technology acoustic sensor, which can be obtained by two different noise-making techniques. In order to achieve the above objective, the acoustic sensing device of the present invention comprises a body, a 201026099 speaker, a microphone and a signal processor. The body has an n-outer Q and An input port, the chamber is connected to the sound outlet, the speaker is disposed in the chamber and the sound generated by the speaker is shouted from the sound to the outside, and the microphone is disposed at a position adjacent to the speaker, which is selectively engageable with the cavity The sound is connected to the speaker or the microphone. When the microphone is connected to the chamber, the microphone receives the sound signal from the chamber and transmits it to the signal processor, and the signal processor is Output an inverting signal to the speaker for the noise signal. Otherwise, when the microphone is connected to the sound port and no longer communicates with the chamber, the microphone is changed to the external sound city, and the processor is targeted. The sound signal of the sound of the sound is outputted to the speaker by the sound signal. Because of this sound, the microphone of the county can be connected to the sound of the chamber. It is connected to the external voice that touches the outside world, and when it receives the external sound signal, it has to form a feed-forward-type shower-type pull with the signal processor, and in the sound of the county, the sound is still handled and processed. Feed-forward (four) mode, shame, whether it is the silker's rhyme, the secret production or use (four) line according to the required sound performance to determine the adjustment feedforward mode or feed-back [implementation] two will refer to the phase _ The type of compensation is based on a sound-sensing device of the present day. The acoustic sensing device is shown in Figure 2, which is the first embodiment of the present invention. The acoustic sensing device 3 can be an earphone, and the basin includes 'this (four), - yangle 40, - microphone 5G and - 峨 processing (10); body] H. 31'_ sound σ32 and - human voice port 33' 1 chamber illusion and sound 2: for the connected 'speaker 4G is set in the chamber 31, and the microphone % is set adjacent to the position of the speaker 4Q - the accommodating space, and the microphone is selectively associated with the chamber 31 or the human voice Port 33 is connected, signal processor 6 is electrically connected to speaker 40 and microphone 5σ, when the microphone 5〇 is connected to the chamber%, the microphone 5 receives the sound signal in the chamber 31 to transmit the money to the mother, and the scale is defined as the voice of the voice. h士0', on the other hand, when the microphone 5G is connected to the human voice σ 33 and is no longer connected to the chamber ', the microphone 5 〇 is changed to receive the external sound signal for transmission to the signal processor. For the sound signal of the silk (four) sound to the speaker 4 〇. The main body 30 has a sound guiding tube 35, and one end of the sound guiding tube is connected to the chamber 31, and the other end is the sound outlet 32, and the sound port of the sound guiding tube is dislocated. The damper member 36 is provided to block the entry of the dust, and the outer portion of the sound guide tube is sleeved with an earplug member 37. The earplug member 37 is made of a sturdy surface for convenient use and the acoustic sensing device is loaded. At the time, it can be inserted into the ear canal by the earplug member 37. In the present embodiment, the technique of controlling the microphone 5 〇 to selectively communicate with the chamber phantom or the θ port 33 is through a switch 70 disposed between the chamber 31 and the entrance oscillating phantom. Achieved, and the switch 7 is provided with a first channel ^ and a second channel 72 'when the switch 70 is moved to the first position, the first - pass (four) system is connected with the cavity 201026099 chamber 31 and the accommodating space 34, and the microphone 5 is made The 〇 can receive the sound signal in the chamber, and when the switch 70 is moved to the second position, the second channel is connected to the input π 33 and the accommodating (four) 34, and the microphone Μ can be received into the sound port 33. Sound signal.曰
請蒼照第3 ®及第4圖所示，為本發明第一實施例之聲學傳 感裳置開關位於第-位置時之示意本發明第—實施例之=學 傳感裝置開關位於第二位置時之示意圖。在第3圖當中，開關％ 在第-通道7丨的_設置有—對第—接齡A，而在第二=乃 的兩側亦紅有-對第二接聽3，另外，本體3Q在容置空間％ 連通至腔室31的路#兩_對應於第—接點組a而設置有—對第 球點組C，在容置空間34連通至人音口 33的路徑兩側則對庫 於弟-接點組B而設置有—對第四接點組D，第三接點组C 性連接至訊號處理器60之—第五接點E，第四接點組D則電性連 接至訊號處理器6〇之一第六接點卩。 當開關70移動至使第-通道71與腔室31及容置空間％ ^ 口 33非為連通，此時麥克風5 二接收腔至31中由縣g 4Q所版聲音訊號也妇 情謂的「後饋切噪」，此時第—接點組A與第： =c電性接觸’且使得訊號處理器6〇之第五接點e接受到_ 電《 ’而驅動訊號處理器6〇内部電路 抵挪噪音；反之，如第4圖所示，當開關7〇移動至使第二 201026099 33及容置空間34連通時，將使得容置空間糾 號，L·、^為物’此時麥克風5Q乃是直接接收外界的聲音訊 "^请。呆技術當中所謂的「前饋式消噪」，此時第二接點 組B與第四接點組D電性接觸，且使得訊號處理器6〇之第六接 點接收到另-電訊號，而驅動訊號處理器⑼内部電路的運作， 亚進而針對外界聲音訊號當中被定義為噪音的部份，再產生一反 向聲波以抵消掉噪音。 承^上所述’本發贿學傳錄置3藉由賴7〇的移動， 即可在别饋式消喊後饋式消嗓兩種模式下切換，而得以在不同 的聲音品質要求下自行調整至所需求的狀態。 "月麥’日’?、第5圖所示，為本發明第二實施例之聲學傳感裝置之 剖面不意®。此實施顺前述實補之差異處，係在於此實施例 本虹30之谷置空間34有足夠的寬度讓麥克風5〇在裡面滑移，而 在腔室31與入音口 33之間係自本體30上延伸設有一擋塊38，由 ®於麥克風5〇收音面朝上，當圖中所示麥克風％移至容置空間34 的左邊日可，因為擔塊38阻撞了麥克風5〇與腔室31的連通，因此 僅能接收外界的聲音訊號，此時聲學傳感裝置3係呈前饋式消嗓 模式’反之’當麥克風5〇移至容置空間34的右邊時，因為擋塊 38阻擋了麥克風5〇與入音口 33的連通，因此僅能接收腔室31 内的聲音訊號’此時聲學傳感裝置3係呈後饋式消噪模式。 此實施例藉由移動麥克風50即可達到在前饋式消噪或後饋式 消17呆之間切換的技;街’然而移動麥克風50以與訊號處理器6〇電 201026099 性接觸亚购H係可參考第3圖及第4圖之設計，其乃為 熟悉包路以者所能輕易配合修改，故在此即不另以圖式或文字 贅述之。 請蒼照第6 5)所示，為本發㈣三實施例之聲學傳感裝置之 剖面示意目。此實施倾歧實闕之差域，餘於此實施例 中主體30延伸設有一軸39以供一承載件8〇拖設，而承載件肋 上係設置妓少-個凹槽81以供容置麥克風％，另外，承載件 80乃是透過一輛承82以樞設於主體3〇。 當承載件⑽轉動至如财所示軸％的左邊時，表示麥克風 5〇僅與外錢通並魏外界的聲音峨，此萌學侃裝置3係 呈前饋式消噪模式；反之，若承餅8Q轉動至轴％的右邊時， 表示麥克風50僅與腔室31連通並接收揚聲器4〇的聲音訊號，此 時聲學傳感裝置3係呈後饋式消噪模式。 此實施例藉由轉動承載件8〇而使麥克風％連通於外界或腔 室31 ’如此即可達到在_式㈣或後賦_之_換的技 術，然而移動麥克風50以與訊號處理器6〇電性接觸並驅動之關 ，，係可參考第3圖及第4圖之設計，其乃為熟悉電路設計者所 能輕易配合修改’故在此即不另以圖式或文字賢述之。 最後在此必須說明的是，上述聲學傳感錢3當中的揚聲器 4〇係舉例為細式揚聲器’然將之魏為動鐵式揚聲器亦不影響 本發明所能達成之功效；另外，上述訊號處_ 6q在第2、5、6 圖當中皆設置在本體3〇内緊鄰揚聲器4〇，然訊號處理器6〇亦可 201026099 依k甩者之未而改設計於本體3〇外，惟此改變尚不致影響其對 消。喿技術之處理。 ❹ 八一 C本备明聲學傳感裝置之麥克風係可選擇性地連通 糾工至以接收縣器之聲音訊號，歧連通於外界以接收外界之 聲曰,H、在接收外界聲音訊號時係得與訊號處理器形成一前饋 式消噪模式’而在魏揚聲_音訊號時係得與賴處理器形成 一後饋式消嗓模式’因此，無論是產製者或消費者，可以在生產 ==自行依據所需要的聲音表現來決定調整切換前饋模式 或後職式’修為了秋高織生共振衰私軌時，係得選 擇將聲#縣裝㈣縣前献料模^。 …' 以上所述僅為舉繼，而非為限繼者 之精神盥範备，而斜甘了未脫離本發明 =乾“封其進行之等效修改或變 之申請專利範圍中。 匕3於後附 ❹ 【圖式簡單說明】 第1A圖為本發明第—較倍實施例之剖面示意圖； f 1β圖為本發明第二較佳實施例之剖面示意圖； +第2圖為本發明第—實關之聲學傳歧置之剖面示 弟3圖為本發明第—實 …、圖’ 之示意圖； 予傳部m位於第_位置時 第4圖為本發明第_實施例之聲學傳感裝 之示意圖； 置開闕位於第 二位置時 11 201026099 第5圖為本發明第二實施例之聲學傳感裝置之剖面示意圖；以及 第6圖為本發明第三實施例之聲學傳感裝置之剖面示意圖。 【主要元件符號說明】 1 耳機 10 麥克風 11 消1桑電路 12 揚聲器 2 耳機 20 麥克風 21 消噪電路 22 揚聲器 3 聲學傳感裝置 30 本體 31 腔室 32 出音口 33 入音口 34 容置空間 35 導音管 36 阻尼件 37 耳塞件 38 擋塊 39 轴 40 揚聲器 50 麥克風 60 訊號處理器 70 開關 71 第一通道 72 第二通道 80 承載件 81 凹槽 82 轴承 A 第一接點組 B 第二接點組 C 第三接點組 D 第四接點組 E 第五接點 F 第六接點 12Please refer to FIG. 3 and FIG. 4, which is a schematic diagram of the first embodiment of the present invention when the acoustic sensing skirt switch is in the first position. Schematic diagram of location. In Fig. 3, the switch % is set in the _ of the first channel 7 — with the pair - the first age, and the second side is also red - the second answer 3, in addition, the body 3Q is The accommodating space % is connected to the chamber 31. The two _ corresponding to the first contact group a are provided with the pair of the ball point group C, and the two sides of the path connecting the accommodating space 34 to the human sound port 33 are The library is connected to the contact group B with the fourth contact group D, the third contact group C is connected to the fifth terminal E of the signal processor 60, and the fourth contact group D is electrically Connected to one of the sixth contacts of the signal processor 6〇. When the switch 70 is moved so that the first channel 71 is not in communication with the chamber 31 and the accommodating space %^ port 33, at this time, the microphone 5 receives the cavity signal from the county g 4Q version of the sound channel to the woman. Feedback noise-cutting, at this time, the first contact group A and the ::c are in electrical contact' and the fifth contact e of the signal processor 6〇 receives the _ electric "' and drives the signal processor 6〇 internally The circuit resists the noise; otherwise, as shown in FIG. 4, when the switch 7〇 is moved to connect the second 201026099 33 and the accommodating space 34, the accommodating space is corrected, and L·, ^ is the object' The microphone 5Q is the voice that directly receives the outside world. In the technology, the so-called "feedforward denoising", at this time, the second contact group B is in electrical contact with the fourth contact group D, and the sixth contact of the signal processor 6〇 receives another electric signal. And the operation of the internal circuit of the driving signal processor (9), and then the portion of the external sound signal defined as noise, and then generate a reverse sound wave to offset the noise. According to the above-mentioned 'British Bribery Recording 3', by the movement of Lai 7〇, you can switch between the two modes of the feed-feeding and the feed-back mode, and the different sound quality requirements can be Adjust to the desired state by yourself. "Maymai'Day', Figure 5 is a cross-sectional view of the acoustic sensing device of the second embodiment of the present invention. The difference between this implementation and the actual compensation is that the valley space 34 of the present embodiment 30 has sufficient width to allow the microphone 5 to slide inside, and between the chamber 31 and the sound inlet 33. A stopper 38 is extended on the main body 30, and the microphone 5 is turned upside down. When the microphone % shown in the figure is moved to the left side of the accommodating space 34, the load block 38 blocks the microphone 5 〇 The communication of the chamber 31 can only receive the external sound signal. At this time, the acoustic sensing device 3 is in the feedforward mode of elimination, and vice versa, when the microphone 5 is moved to the right of the accommodating space 34, because the stopper 38 blocks the communication between the microphone 5 and the sound inlet 33, so that only the sound signal in the chamber 31 can be received. At this time, the acoustic sensing device 3 is in a feed-back mode. In this embodiment, by moving the microphone 50, the technique of switching between feedforward denoising or feedforward cancellation can be achieved; however, the mobile microphone 50 is in contact with the signal processor 6 20102099. Reference can be made to the design of Figures 3 and 4, which can be easily adapted to the familiarity of the road, so it is not described here in the form of a drawing or a text. Please refer to the section of the acoustic sensing device of the fourth embodiment of the present invention as shown in Fig. 6 5). In this embodiment, the main body 30 is extended with a shaft 39 for dragging a carrier member 8b, and the carrier rib is provided with a plurality of recesses 81 for the capacity. The microphone is set to %. In addition, the carrier 80 is pivotally mounted to the main body 3 through a carrier 82. When the carrier (10) is rotated to the left of the axis % as indicated by the money, it means that the microphone 5 is only connected to the external money and the external sound is 峨, and the device 3 is in a feedforward denoising mode; When the socket 8Q is rotated to the right of the shaft %, it indicates that the microphone 50 is only in communication with the chamber 31 and receives the sound signal of the speaker 4, and the acoustic sensing device 3 is in a feed-back mode. In this embodiment, the microphone is connected to the outside or the chamber 31 by rotating the carrier 8 如此 so that the technique of changing the _ (4) or the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ For the electrical contact and drive, please refer to the design of Figure 3 and Figure 4, which is familiar to the circuit designer can easily adapt to the modification, so there is no other pattern or text here. . Finally, it must be noted that the speaker 4 in the above acoustic sensing money 3 is exemplified as a fine speaker. However, the Wei iron moving speaker does not affect the effects of the present invention; In the second, fifth, and sixth figures, the 6q is placed in the body 3〇 next to the speaker 4〇, but the signal processor 6〇 can also be designed in the body 3〇 according to the other, but only The change has not affected its cancellation.喿 Technology processing.八 Bayi C This microphone of the acoustic sensing device can selectively connect to the operator to receive the sound signal of the county, and communicate with the outside world to receive the external sound. H, when receiving the external sound signal It has to form a feedforward denoising mode with the signal processor, and in the Weiyang sound_audio signal, it forms a feed-back mode with the Lai processor. Therefore, whether it is the producer or the consumer, it can be produced. == According to the required sound performance, it is decided to adjust the switching feedforward mode or the post-employment type. ...' The above is only a continuation, not a spirit of the limiter, and it is not in the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a cross-sectional view showing a first embodiment of the present invention; FIG. 1A is a schematic cross-sectional view showing a second preferred embodiment of the present invention; - The schematic diagram of the acoustic transmission of the Guanguan is shown in Fig. 3, which is a schematic diagram of the first embodiment of the present invention; the fourth embodiment of the present invention is the acoustic sensing of the first embodiment of the present invention. FIG. 5 is a schematic cross-sectional view of an acoustic sensing device according to a second embodiment of the present invention; and FIG. 6 is an acoustic sensing device according to a third embodiment of the present invention. Schematic diagram of the cross section. [Main component symbol description] 1 Headphones 10 Microphone 11 Elimination 1 sang circuit 12 Speaker 2 Headphone 20 Microphone 21 Noise eliminator circuit 22 Speaker 3 Acoustic sensor device 30 Body 31 Chamber 32 Sound port 33 Input port 34 Capacity Space 35 sound tube 36 Damping member 37 Earbuds 38 Stopper 39 Axis 40 Speaker 50 Microphone 60 Signal processor 70 Switch 71 First channel 72 Second channel 80 Carrier 81 Groove 82 Bearing A First contact group B Second contact group C Third contact group D fourth contact group E fifth contact F sixth contact 12