13001851300185
九、發明說明： 【發明所屬之技術領域】 本發明係關於一種保護聽力的系統、方法及聲音輸出裝置，尤其 係關於一種通過限制聲音能量值從而保護聽力的系統、方法及具有聽 力保護功能的聲音輸出裝置。 【先前技術】 隨著數位產品的發展，手持音頻播放設備得到廣泛應用，具有音 頻播放功能的手持設備包括收音機、MP3、PDA、手機等。為了在欣 賞音樂或廣播節目時不影響別人，用戶通常使用耳機收聽。在欣賞音 樂的過程中，用戶時常需要進行下列操作：播放、停止播放、上一首' 下一首及調節音量，然而，用戶直接在音頻重放設備上進行操作不夠 方便，線控耳機解決了上述問題。 當欣員快節奏音樂例如搖滾音樂時，用戶往往將音量調到很大； 另外，當裱境音量报大時，例如地鐵中，用戶為了能夠聽到渴望的聲 音錢也會將音量糊彳艮大。然而，用戶都存在—個聽力生理極限， 即響=不適級(Loudness Discomfort Level，LDL)，如果用戶的耳朵長時 間暴露f超過該響度不適級的環境下，齡對顧戶的聽力造成傷 害。目前市場上的線控耳機尚不具備聽力保護的功能。 【發明内容】 处旦有釔於此’有必要提供一種聽力保護系統，當一段時間内的音頻 達”’控制音量的變化’從而保護聽力。該聽力保護系 里官理單元接收—聲音峨源輸出的數位聲音訊號，其包 十叙，組，如用一預定的取樣頻率對該數位聲音訊號進行取樣， 纖娜价錄計算一預 一預外处旦μ 士9值，及一聽力保護模組，當該聲音能量值達到 括一n聽力保護訊號。其中，該聽力保護系統還包 值。該:心S ’接收並響應該聽力保護訊號，自動調低當前增益 訊還可替換為—警示單元，接收並響應該聽力保護 «產生視覺或聽覺的警示訊號。 6 1300185IX. Description of the Invention: The present invention relates to a system, method and sound output device for protecting hearing, and more particularly to a system, method and hearing protection function for protecting hearing by limiting the value of sound energy. Sound output device. [Prior Art] With the development of digital products, handheld audio playback devices have been widely used, and handheld devices with audio playback functions include radios, MP3s, PDAs, mobile phones, and the like. In order to enjoy music or radio programs without affecting others, users usually use headphones to listen. In the process of enjoying music, users often need to do the following operations: play, stop playing, the previous 'next and adjust the volume, however, the user is not convenient to operate directly on the audio playback device, the wire headset is solved. The above question. When it comes to fast-paced music such as rock music, users tend to turn the volume up; in addition, when the volume of the dim is large, such as in the subway, the user will also make the volume louder in order to hear the desired voice. . However, the user has a hearing physiological limit, that is, Loudness Discomfort Level (LDL), and if the user's ear long-term exposure f exceeds the loudness of the discomfort level, the age is harmful to the hearing of the household. The wire-controlled headphones currently on the market do not yet have the function of hearing protection. [Summary of the Invention] It is necessary to provide a hearing protection system that protects the hearing when the audio reaches "the volume change" for a period of time. The hearing protection system is received by the official unit - the sound source The digital audio signal is outputted, and the digital audio signal is sampled by using a predetermined sampling frequency, and the fiber price is calculated as a pre-external value, and a hearing protection mode. The group, when the sound energy value reaches a hearing protection signal, wherein the hearing protection system also includes a value. The heart S 'receives and responds to the hearing protection signal, automatically lowers the current gain signal and can also be replaced with - warning Unit that receives and responds to the hearing protection « produces a visual or audible warning signal. 6 1300185
有鑑於此’還有必要提供一種具有聽力保護功能的聲音輸出裝 置，當-段時間内的音頻能量值達到預定值，控制音量的變化，從而 保^力二該革曰，出裝置包括一介面單元、一數位類比轉換器、一 音篁了理單^及-聲音傳感器。該介面單元接收_聲音減源輸出的 數位聲音城。該數蝴比轉換器將該數位聲音訊號轉換為類比聲音 λ號。該聲音佩讀ά麵比聲音峨對應的聲音。該音量管理單 =包括-取樣板組’ _—預定的取樣鮮對該介面單元接收的數位 聲音訊號進^樣，概振幅值；-計算做，縣複數振幅值 作為-參數计异-預設時間段内的聲音能量值；及一聽力保護模組， 當該聲音能量值達到-預設能量值時，產生一聽力保護訊號。其中， 該聲音輸出裝置還包括-音量控制單元，減並響應該聽力保護訊 號’自動調低當前增益值，並藉由概後的增益做大錄位類比轉 換器轉換後的舰聲音訊號。該音量控解元還可#換為一警示單 兀’接收並響應雜力賴峨，產生視覺或聽覺畴示訊號。 处1鑑於此，還有必要提供一種聽力保護方法，當一段時間内的音 頻能1值達到預定值，控制音量賴化，從而賴聽力。該聽力保護 方法包括下列步驟··接收—聲音訊號源輸出的數位聲音訊號；採用一 預定的取樣鮮_數位聲音碱進行取樣，獲取複數振幅值；將該 幅值作為-參數計算—預設時間段觸聲音能量值；及當該聲 音能Ϊ值達到一預設能量值時，產生一聽力保護訊號。其中，該聽力 ，護方法還包括步驟：減並響應繩力紐訊號，自_低當前增 ;，。上述調低增益值的步驟可替換為下一步驟··接收並響應該聽力 保護訊號，產生視覺或聽覺的警示訊號。 &相較於現有技術，應用該聽力保護的系統、方法及具有聽力保護 =的聲音輸出裝置，計算—預設時間段狀音頻能量值，當該音頻 ΐίΐ達到—預設的音頻能量值時，則自動調低音量或產生視覺1聽 見、g示‘號，從而達到保護用戶聽力的目的。下面將結合附 發明的實施方式進行說明。 7 1300185 【實施方式】 =圖是本發明的實施方式中具有聽力保護魏的聲音輸出裝置 的架構^。該聲音輸出裝置1G包括—介面單元聽力保護系統 ^聲音傳感器μ及-數位類比轉換器ls。該聲音輸錄置1〇通 ^二面單元12接收-聲音訊號源u輸出的數位聲音訊號，並分別 =數位聲音訊號發送到該聽力保統13及該數位類比轉換器Μ; ^夾ΐ聲音減源11可為音頻魏裝置、無軌鶴放裝置、電視 2或二克鱗。職力倾祕13計算概鱗音訊制音頻能量 Ξ音雜該制_預設能量辦自_低音量或產生視覺或 t的警祕號’賴咖戶聽力免受傷害。該數鋪哺換器15將 聲音減讎細比聲音訊號^然後該聲音傳感器14在調低後 的曰塁下輸出該類比聲音訊號對應的聲音。其中，該聲音傳感器14可 為一耳機或一揚聲器。 第二®是本發第-實施方式巾具有聽力保護功能的聲音輸出 裝置的方顧。該聽力保㈣統13包括—處理單元17及—音量控制 單元18 ;該處理單元17包括一音量管理單元16。該聲音輸出裝置工1〇 通過該?面單元I2接收該聲音訊號源U輸出的數位聲音訊號，並將 该數位聲，，號f別發送到該音量控制單元18及該數位類比轉換器 15。該音ϊ官理單το 16，制—預定的取樣鮮f對該數位聲音訊號 進行取樣，獲取複數振幅值mi;獲得該音量㈣單元18的當前增益值 V ;然後根據复數振幅值mi及該當前增益值v，應用一數學算法週 期性地計算-預設時間段T _音頻能量值Q; t該音頻能量值Q達 到-預設能量值K時，向該音量㈣單元18發送_聽力保護訊號；其 中，該預設能量值K可由用戶手動設定，或由設計人員預歧定；例 如，該預設能量值K可為用戶耳朵能夠承受的最大音頻能量值q。另 外，計算該音頻能量值的數學算法可為：0={[Σ(π1ί* v)2/n]1/2}*t (其中，i從1到N)，Q表示該音頻能量值，τ表示該預設時間段，N 表示該預設時間段T内獲取該數位聲音訊號的振幅值加的數目，v表 示當前增益值。該數位類比轉換器15將該介面單元12接收到的數位 8 1300185 聲音訊號轉換為類比聲音訊號。該音量控制單元18，響應該聽力保護 訊號自動調低增益值，並根據調低後的增益值放大該數位類比轉換器 15轉換後的類比聲音訊號；其中，調低增益值的方法可為一次性大幅 度地調低到一適當的增益值，也可小幅度地逐步調整。該聲音傳感器 14輸出該類比聲音訊號對應的聲音。 為了補償不同用戶聽覺靈敏度的差異，本實施方式也可允許用戶 手動調整或選擇該預設能量值K。例如，如果用戶的聽覺靈敏度較低， 便可以將該預設能量值K調高些；而如果用戶的聽覺靈敏度較高，便 可以將該預設能量值K調低些。另外，為了適應用戶在不同時間段内 聽覺靈敏度的變化，本實施方式也可根據當前時間所屬的時間段自動 ® 調整或設定該預設能量值K。例如，早上用戶的聽覺靈敏度較高，可 以將該預設能量值K自動調低；而中午用戶的聽覺靈敏度較低，則可 以將該預設能量值K自動調高。該時間段的設置可由設計人員預先設 定，也可由用戶設定。由此，該處理單元17還提供一時鐘單元19，該 音量管理單元16從該時鐘單元19獲取當前時間並確定該時間所屬的 時間段，然後根據當前時間所屬的時間段調整該預設能量值κ。用戶 可根據需要啟動及關閉上述自動調整或選擇該預設能量值κ的功能。 自動調整該預設能量值κ的方法具體可為，該音量管理單元16設 定一預設時間段的預設能量值κ作為標準，例如，設定中午η點到 翁 13點間的預設能量值κ為90分貝等。在比較聲音能量值與預設能量 值Κ以前’首先確定當前時間所屬的時間段，然後根據該時間段與預 設時間段的差值調整預設能量值κ。 設定該預設能量值κ的方法具體可為，該音量管理單元16設置複 數時間段對應的預設能量值Κ，在比較聲音能量值與預設能量值κ以 前，首先確定當前時間所屬的時間段，然後選擇該時間段對應的預設 能量值Κ。 ~ 〇Χ 第三圖是本發明的第一實施方式中音量管理單元的模組圖。該音 量管理單元16包括一取樣模組20、一增益獲得模組21、一計算模組 22及一聽力保護模組23。該取樣模組20，接收該聲音訊號源u輸出 1300185 的數位聲音峨，_上述職的取樣解f，缝位聲音峨進行取 樣’獲取1設時間段τ内的複數振幅值mi。—增 =音量控7元18的當前增益值V。該計算模組22，根_複』 巾田值ri該當别增益值v，應用上述數學算法計算該預設時間段τ内 日此里值Q。該聽力保護模組23，當該聲音能量值Q達到一預設 月bl值K時’產生一聽力保護訊號，並將該聽力保護訊號發送到該音 量控制單元18。 該H管理單元16還包括一基準調整模組24，該基準調整模組 24f取當前時間並確定該時間所屬的時間段。該聽力保麵組23根據 當别時間所屬的時間段調整或選擇該預設能量值K。 0第四圖是本發明的第一實施方式中聽力保護方法的流程圖。該介 面單元12從該聲音訊號源η接收一數位聲音訊號，並將該數位聲音 訊號分別輸送到該數位類比轉換器15及該音量管理單元16(步驟 S30)。該音量管理單元16，採用上述預定的取樣頻率f對該數位聲音 訊號進行取樣，獲取複數振幅值W(步驟S31);獲得該音量控制單元 18的當刚增盈值v(步驟S32);然後根據該複數振幅值w及該當前增 益值V，應用上述數學算法計算該預設時間段τ内的音頻能量值Q(步 驟S33);並判斷該音頻能量值q是否達到該預設能量值κ(步驟S34); 當該音頻能量值Q未達到該預設能量值K時，流程返回步驟S3i ;而 當該音頻能量值Q達到該預設能量值K時，該音量管理單元16生成 一聽力保護訊號(步驟S35)。該該數位類比轉換器15將該數位聲音訊 號轉換為類比聲音訊號(步驟S36)。該音量控制單元18接收該音量管 理單元16發送的聽力保護訊號，響應該聽力保護訊號從而調低增益 值’並根據調低後的增益值放大該類比聲音訊號(步驟S37)。該聲音傳 感器14輸出該類比聲音訊號對應的聲音(步驟S38)。 第五圖是本發明的第一實施方式中確定預設能量值K的流程圖。 執行步驟S33以後，該處理單元π確定是否啟動了根據時間段調整預 設能量值K的功能(步驟S40)。如果沒有啟動根據時間段調整預設能量 值K的功能，流程轉到步驟S34 ;如果啟動了根據時間段調整預設能 1300185 確定哕愿該日里官理單元16從該時鐘單元19獲取當前時間並 ^ ^ θ的時間段(步驟S41)。然後根據當前時間所屬的時間 & ’調整，設能量值K，接著執行上述步驟伽。 立#發明第二實施方式中具有聽力保護功能的聲 ill二二立第二實施方式與第二圖所示的第一實施方式不 二將艟二曰二控，早疋18替換為一警示單元60，該數位類比轉換器 Μ *1/舰聲音訊號直接輸送到鱗音傳感11 14。該警示單元 _力峨，f出視細_麵碱，用以提 Γ ·· # -曰里。該警不單元60可為一發光二極體（LED， (LCD/liquid-crystal display)^ _ 此卿）及其他能夠發出視覺警示訊號 不早以〇還可為_聽覺警示裝置如蜂鳴器，用以發出聽 覺警不訊號。 該立ίί理施，與第二圖所示的第—實施方式不同還在於， =早二*_木用—預定的取樣鮮f對該數位聲音訊號進行 ，’又取複數振幅值mi ;然後根據該複數振幅 法週期性地計算-預設時間段τ _音頻能纽 j 元16確定該音頻能量值Q達到一預設能量值κ時，盆‘二= 示單元6_並響應該聽力保護訊號’ 么出視見抓見的巧訊號。其巾，計算該 為如卵細]，撕他_，Q表=數·^ 了 T表示娜_段，N表示娜_段τ崎 f 的振幅值mi的數目。 扣车曰Λ就 綜上所述，本發明所提出的—種保護聽力的系統 出裝置確實可符合剌專與件，纽法提出專财請 述者僅為^發明的-種保護聽力的系統、方法及聲音輸出裝置= 實施例，舉凡熟悉本案技藝的人士，在參照本發明精神4的等 飾或變化，皆應包含於以下的申請專利範圍内。 Λ夕 11 糊185 【圖式簡單說明】 裝置的模組圖 中本發明的音量管理單元的模組圖。 =四圖疋第—實施方式中本發_聽力保護方法的流程圖。 ί五，，第-實施方式中確定預設能量值的流程圖。In view of this, it is also necessary to provide a sound output device with hearing protection function, when the audio energy value reaches a predetermined value during a period of time, the volume is changed, thereby ensuring the force, and the device includes an interface. The unit, a digital analog converter, a sound amplifier, and a sound sensor. The interface unit receives the digital sound city of the sound reduction source output. The digital ratio converter converts the digital sound signal into an analog sound λ number. The sound is read by the sound corresponding to the sound 峨. The volume management sheet=including-sampling board group _-predetermined sampling freshly receives the digital sound signal received by the interface unit, the amplitude value is averaged; the calculation is done, the county complex amplitude value is used as the parameter-counting-preset The sound energy value in the time period; and a hearing protection module, when the sound energy value reaches the preset energy value, a hearing protection signal is generated. The sound output device further includes a volume control unit that automatically reduces the current gain value in response to the hearing protection signal and performs a ship sound signal converted by the large-record analog converter by the approximate gain. The volume control unit can also be replaced by a warning list 兀' to receive and respond to the hybrid, generating a visual or audible signal. In view of this, it is also necessary to provide a hearing protection method, when the value of the audio energy 1 reaches a predetermined value for a period of time, the volume is controlled to be dependent on the hearing. The hearing protection method comprises the following steps: receiving - a digital sound signal output by the sound signal source; sampling with a predetermined sampling fresh_digit sound base to obtain a complex amplitude value; calculating the amplitude as a - parameter - preset time The segment touches the sound energy value; and when the sound can depreciate to a predetermined energy value, a hearing protection signal is generated. Wherein, the hearing and protection method further comprises the steps of: reducing and responding to the rope force signal, from _low current increase; The step of lowering the gain value may be replaced by the next step of receiving and responding to the hearing protection signal to generate a visual or audible warning signal. & Compared with the prior art, the system and method for hearing protection and the sound output device with hearing protection= are used to calculate a preset time-stage audio energy value when the audio ΐ ΐ reaches a preset audio energy value. , then automatically adjust the low volume or produce a visual 1 hear, g show 'number, so as to achieve the purpose of protecting the user's hearing. The following description will be made in conjunction with the embodiments of the invention. 7 1300185 [Embodiment] The figure is a structure of a sound output device having hearing protection in the embodiment of the present invention. The sound output device 1G includes an interface unit hearing protection system, a sound sensor μ, and a digital analog converter ls. The sound input and output unit 2 receives the digital sound signal outputted by the sound signal source u, and sends a digital sound signal to the hearing protection system 13 and the digital analog converter respectively; The source 11 can be an audio device, a trackless crane device, a television 2 or a 2 gram scale. The power of the secret 13 calculation of the scale of the audio system audio energy Ξ 杂 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The number of feeders 15 reduces the sound to a finer sound signal. Then the sound sensor 14 outputs the sound corresponding to the analog sound signal under the lowered height. The sound sensor 14 can be an earphone or a speaker. The second® is a method of the sound output device having the hearing protection function of the first embodiment of the present invention. The hearing protection system (4) includes a processing unit 17 and a volume control unit 18; the processing unit 17 includes a volume management unit 16. The sound output device receives the digital sound signal output by the sound signal source U through the surface unit I2, and transmits the digital sound, the number f, to the volume control unit 18 and the digital analog converter 15. The sound ϊ 理 τ τ 16, 预定 预定 预定 预定 预定 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The current gain value v is periodically calculated using a mathematical algorithm - a preset time period T _ audio energy value Q; t when the audio energy value Q reaches a preset energy value K, the _ hearing protection is sent to the volume (four) unit 18 The signal; wherein the preset energy value K can be manually set by the user or pre-discriminated by the designer; for example, the preset energy value K can be the maximum audio energy value q that the user's ear can bear. In addition, the mathematical algorithm for calculating the audio energy value may be: 0={[Σ(π1ί* v)2/n]1/2}*t (where i is from 1 to N), and Q represents the audio energy value, τ represents the preset time period, N represents the number of amplitude values obtained by acquiring the digital sound signal in the preset time period T, and v represents the current gain value. The digital analog converter 15 converts the digital 8 1300185 audio signal received by the interface unit 12 into an analog sound signal. The volume control unit 18 automatically lowers the gain value in response to the hearing protection signal, and amplifies the analog audio signal converted by the digital analog converter 15 according to the adjusted gain value; wherein the method of lowering the gain value may be once The performance is greatly reduced to an appropriate gain value, and can be adjusted step by step. The sound sensor 14 outputs a sound corresponding to the analog sound signal. In order to compensate for the difference in hearing sensitivity of different users, the present embodiment may also allow the user to manually adjust or select the preset energy value K. For example, if the user's hearing sensitivity is low, the preset energy value K can be adjusted higher; and if the user's hearing sensitivity is higher, the preset energy value K can be lowered. In addition, in order to adapt to the change of the auditory sensitivity of the user in different time periods, the embodiment may also automatically adjust or set the preset energy value K according to the time period to which the current time belongs. For example, in the morning, the user's hearing sensitivity is high, and the preset energy value K can be automatically turned down; and if the user's hearing sensitivity is low at noon, the preset energy value K can be automatically increased. The setting of this time period can be preset by the designer or set by the user. Thus, the processing unit 17 further provides a clock unit 19, which acquires the current time from the clock unit 19 and determines the time period to which the time belongs, and then adjusts the preset energy value according to the time period to which the current time belongs. κ. The user can activate and deactivate the above automatic adjustment or select the preset energy value κ as needed. Specifically, the method for automatically adjusting the preset energy value κ may be that the volume management unit 16 sets a preset energy value κ of a preset time period as a standard, for example, setting a preset energy value between the noon η point and the Weng 13 point. κ is 90 decibels and so on. Before comparing the sound energy value with the preset energy value ’, the time period to which the current time belongs is first determined, and then the preset energy value κ is adjusted according to the difference between the time period and the preset time period. Specifically, the method for setting the preset energy value κ may be: the volume management unit 16 sets a preset energy value 对应 corresponding to the plurality of time periods, and first determines the time to which the current time belongs before comparing the sound energy value with the preset energy value κ. Segment, and then select the preset energy value Κ corresponding to the time period. ~ 〇Χ The third figure is a block diagram of the volume management unit in the first embodiment of the present invention. The volume management unit 16 includes a sampling module 20, a gain obtaining module 21, a computing module 22, and a hearing protection module 23. The sampling module 20 receives the digital sound 输出 of the audio signal source u output 1300185, the sampling solution f of the above-mentioned position, and the sampling sound 峨 is sampled to obtain the complex amplitude value mi within the set time period τ. - Increase = volume control current gain value V of 7 yuan 18. The calculation module 22, the root_combination field value ri, the other gain value v, applies the above mathematical algorithm to calculate the value Q in the preset time period τ. The hearing protection module 23 generates a hearing protection signal when the sound energy value Q reaches a predetermined monthly bl value K, and transmits the hearing protection signal to the volume control unit 18. The H management unit 16 further includes a reference adjustment module 24 that takes the current time and determines the time period to which the time belongs. The hearing face group 23 adjusts or selects the preset energy value K according to the time period to which the time belongs. The fourth figure is a flowchart of the hearing protection method in the first embodiment of the present invention. The interface unit 12 receives a digital audio signal from the audio signal source η, and supplies the digital audio signal to the digital analog converter 15 and the volume management unit 16 (step S30). The volume management unit 16 samples the digital audio signal by using the predetermined sampling frequency f to obtain a complex amplitude value W (step S31); obtains the immediately increased value v of the volume control unit 18 (step S32); And calculating, according to the complex amplitude value w and the current gain value V, the audio energy value Q in the preset time period τ by using the above mathematical algorithm (step S33); and determining whether the audio energy value q reaches the preset energy value κ (Step S34); when the audio energy value Q does not reach the preset energy value K, the flow returns to step S3i; and when the audio energy value Q reaches the preset energy value K, the volume management unit 16 generates a hearing The protection signal (step S35). The digital analog converter 15 converts the digital audio signal into an analog audio signal (step S36). The volume control unit 18 receives the hearing protection signal transmitted by the volume management unit 16, and in response to the hearing protection signal, lowers the gain value' and amplifies the analog sound signal according to the adjusted gain value (step S37). The sound sensor 14 outputs the sound corresponding to the analog sound signal (step S38). The fifth figure is a flow chart for determining the preset energy value K in the first embodiment of the present invention. After performing step S33, the processing unit π determines whether or not the function of adjusting the preset energy value K according to the time period is started (step S40). If the function of adjusting the preset energy value K according to the time period is not activated, the process goes to step S34; if the preset time can be adjusted according to the time period 1300185, it is determined that the official time unit 16 obtains the current time from the clock unit 19 And the time period of ^^ θ (step S41). Then, according to the time & 'adjustment of the current time, the energy value K is set, and then the above steps are performed. In the second embodiment, the second embodiment of the sound protection function having the hearing protection function and the first embodiment shown in the second figure are the second embodiment, and the early warning unit 18 is replaced by a warning unit. 60, the digital analog converter Μ * 1 ship sound signal is directly sent to the scale sensor 11 14 . The warning unit _ force 峨, f look at the fine _ surface alkali, used to mention · ·· # -曰里. The alarm unit 60 can be a light-emitting diode (LED, (LCD/liquid-crystal display) ^ _ this Qing) and other capable of issuing a visual warning signal not too early, and can also be an audible warning device such as a buzzer To emit an audible alarm. The difference between the embodiment and the first embodiment shown in the second figure is that: = 2 early = * wood - predetermined sampling f is performed on the digital sound signal, 'takes the complex amplitude value mi; then According to the complex amplitude method, periodically calculating - the preset time period τ _ audio energy j j element 16 determines that the audio energy value Q reaches a predetermined energy value κ, the basin '2 = the unit 6_ and responds to the hearing protection The signal 'when you see the secret signal. For the towel, calculate the number as the egg size, tear it _, Q table = number · ^ T denotes the na _ segment, and N denotes the number of amplitude values mi of the _ segment τ 崎 f. In summary, the system for protecting hearings proposed by the present invention can indeed conform to the 剌 与 与 , , , , , 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽 纽METHODS AND AUDIO OUTPUT DEVICES 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Λ夕 11 Paste 185 [Simple diagram of the diagram] Module diagram of the device The module diagram of the volume management unit of the present invention. = Fig. 4 is a flow chart of the present invention _ hearing protection method in the embodiment. Ί5, a flowchart of determining a preset energy value in the first embodiment.
裝置的模組圖 【主要元件符號說明】 聲音輸出裝置 聲音訊號源 10 介面單元 11 聽力保護系统 12 聲音傳感器 13 數位類比轉換号 14 音量管理單元 15 處理單元 16 音量控制單元 17 時鐘單元 18 取樣模組 19 增益獲得模I且 20 計算模組 21 聽力保遵模系且 22 基準調整楔誕 23 警示單元 24 60 圖ί第一實施方式中本發明的具有聽力出 『疋第二實施方式中本發明的具有聽力保護功能的音頻輪出 12Module diagram of the device [Key component symbol description] Sound output device Sound signal source 10 Interface unit 11 Hearing protection system 12 Sound sensor 13 Digital analog conversion number 14 Volume management unit 15 Processing unit 16 Volume control unit 17 Clock unit 18 Sampling module 19 gain acquisition mode I and 20 calculation module 21 hearing protection system and 22 reference adjustment wedge 23 warning unit 24 60 Figure 1 The first embodiment of the present invention has the hearing "疋 the second embodiment of the present invention Audio-protected audio turn-out 12