1321961 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種聽力保護的方法及系統，特別涉及一 •種應用於音頻播放時的聽力保護方法及具有聽力保護功能 的音頻播放系統。 【先前技術】 音樂已經成為人們生活的一部分，尤其是上班族與學 生族。然而，沒有節制地收聽音樂會導致聽力損傷。醫學 研究表明，聽眾在收聽音樂時應當將音量限制在100分貝 以下，而且連續收聽時間應當限制在一小時内。否則，將 可能造成永久性的聽力損傷。 現有技術中，聽眾可以設置音頻播放裝置的最大音量 以及連續收聽時間，當該連續收聽時間到達時該音頻播放 裝置將自動停止播放音樂並自動關機，然而這種方法比較 死板而且不夠人性化。 【發明内容】 有鑒於此，有必要提供一種應用於音頻播放時的聽力 保護方法，包括下列步驟：接收一播放命令；讀取音頻文 檔進行播放並累積一播放時間T1 ;判斷播放時間T1是否 達到一預設播放時間K1，並當確定播放時間T1達到預設 播放時間K1時，進入一聽力保護模式，讀取預設的音頻文 檔進行播放。 有鑒於此，還有必要提供一種具有聽力保護功能的音 頻播放系統，該系統包括一存儲單元、一命令輸入單元及 6 1321961 一微處理單元。該微處理單元響應該命令輸入單元生成的 播放命令，從該存儲單元讀取一音頻文檔進行播放。該存 •儲單元存儲有一或複數預設的舒緩音頻文檔。該微處理單 ，元包括一偵測模組，響應該播放命令累積一播放時間τι ; 及一模式控制模組，判斷播放時間T1是否達到一預設播放 時間K1，當確定播放時間T1達到預設播放時間K1時控 制進入一聽力保護模式，從該存儲單元中讀取該預設音頻 文檔進行播放。 相較於現有技術，所述應用於音頻播放時的聽力保護 方法及具有聽力保護功能的音頻播放系統，當連續播放音 頻的時間達到預設播放時間K1時，該音頻播放系統會自動 切換到預設的舒緩音樂進行播放，從而防止聽眾的聽力疲 勞。下面將結合附圖對本發明的實施方式進行說明。 【實施方式】 如圖1所示，是具有聽力保護功能的音頻播放系統的 架構圖。該音頻播放系統10可以是一手持式的音頻播放器 如MP3播放器等，也可以是運行於電腦的音頻播放軟體系 統如Winamp等。該音頻播放系統10包括一微處理單元 11、一命令輸入單元12、一存儲單元13、一數位類比轉換 器14、一放大器15、一介面單元16及一顯示單元17。 存儲單元13存儲有複數音頻文檔及一音頻解碼程 式。顯示單元17為聽眾提供一顯示介面，用於顯示音頻文 檔的名稱、演唱者、播放時間及設置訊息等。 請一並參考圖2,是第一實施方式中設置聽力保護模 7 1321961 預設音量V。預設播玫時間K1為聽1321961 IX. Description of the Invention: [Technical Field] The present invention relates to a method and system for hearing protection, and more particularly to a hearing protection method for audio playback and an audio playback system with hearing protection function. [Prior Art] Music has become a part of people's lives, especially office workers and students. However, listening to the concert without restraint leads to hearing impairment. Medical research has shown that listeners should limit their volume to less than 100 decibels when listening to music, and continuous listening time should be limited to one hour. Failure to do so may result in permanent hearing damage. In the prior art, the listener can set the maximum volume of the audio playback device and the continuous listening time. When the continuous listening time arrives, the audio playback device will automatically stop playing music and automatically shut down. However, this method is relatively rigid and not user-friendly. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a hearing protection method for audio playback, comprising the steps of: receiving a play command; reading an audio file for playing and accumulating a play time T1; determining whether the play time T1 is reached. A preset playing time K1, and when it is determined that the playing time T1 reaches the preset playing time K1, enters a hearing protection mode, and reads a preset audio file for playing. In view of this, it is also necessary to provide an audio playback system with hearing protection function, the system comprising a storage unit, a command input unit and a 6 1321961 micro processing unit. The micro processing unit reads an audio file from the storage unit for playback in response to the play command generated by the command input unit. The storage unit stores one or more preset soothing audio files. The micro-processing unit includes a detecting module, and accumulates a playing time τι in response to the playing command; and a mode control module determines whether the playing time T1 reaches a preset playing time K1, and when the playing time T1 is determined to be pre-determined When the playing time K1 is set, the control enters a hearing protection mode, and the preset audio file is read from the storage unit for playing. Compared with the prior art, the audio protection system applied to audio playback and the audio playback system with hearing protection function automatically switch to the pre-reading time when the time of continuously playing audio reaches the preset playing time K1. The soothing music is played to prevent hearing fatigue of the listener. Embodiments of the present invention will be described below with reference to the accompanying drawings. [Embodiment] As shown in Fig. 1, it is an architectural diagram of an audio playback system having a hearing protection function. The audio playback system 10 can be a handheld audio player such as an MP3 player, or an audio playback software system such as Winamp running on a computer. The audio playback system 10 includes a micro processing unit 11, a command input unit 12, a storage unit 13, a digital analog converter 14, an amplifier 15, an interface unit 16, and a display unit 17. The storage unit 13 stores a plurality of audio files and an audio decoding method. The display unit 17 provides a display interface for the listener to display the name of the audio document, the singer, the play time, and the setting information. Referring to FIG. 2 together, in the first embodiment, the hearing protection mode 7 1321961 preset volume V is set. Preset the broadcast time K1 for listening
時間，如40分鐘。± 两又柯的 設音頻文制時間Κ2為聽料續收聽該預 緩並且料喜愛的觸設音頻讀為節奏舒 聽眾休息的音量，如6f)鋼琴曲等。料量V為適於 〇u分貝。 的二通過該命令輸入單元12,在該顯示單元17 命令輸入單元12 播玫的音頻讀進行減，由此讀 該微處理單元播放命令。Time, such as 40 minutes. ± Two and a set of audio text time Κ 2 for the listener to continue listening to the pre-slow and favorite touch audio read as the rhythm of the listener's rest, such as 6f) piano music. The feed amount V is suitable for 〇u decibels. The second input command unit 12 passes the audio reading of the input unit 12 commanded by the display unit 17 to perform subtraction, thereby reading the micro processing unit play command.
式的介面示意圖。聽眾可以通過該命令輸入單元12 ’在該 顯示單元17的顯示介面上開啟/關閉該音頻播放系統10的 聽力保護模式。聽眾還可以進一步設置該音頻播放系統10 的預設播放時間K1、預設休息時間K2、一或複數預設音 頻文檔、及/或開啟/關閉該音頻播放系統10的音量限制功 能。當開啟該音量限制功能後，聽眾還可以進一步設置一 命令，從該存儲單-據該命令輸入單元12生成的播玫 該解碼程式解奶ΐ13讀轉碼程式及—音默檔，運行 數位類比轉：ΓΊ文槽生成數位音頻訊號。 頻訊號。放大器/° 4將該數位音頻訊號轉換為類比音 元16傳送到將該類比音頻訊號放大後，通過介面單 的磬立。9輪出裝置18輸出該類比音頻訊號對應 I =聲音輪出I置18可為-耳機或-揚聲器。 該微處理單元二是圖1中微處理單元1〇的模組圖。 似。該偵髓4 L括—偵測模組114及一模式控制模版 貞顺組114響應該命令輸入單元12生成的播放Schematic diagram of the interface. The listener can input/turn the hearing protection mode of the audio playback system 10 on the display interface of the display unit 17 by the command input unit 12'. The listener can further set the preset playing time K1 of the audio playing system 10, the preset rest time K2, one or a plurality of preset audio files, and/or turn on/off the volume limit function of the audio playing system 10. After the volume limit function is turned on, the listener can further set a command, from the storage list - according to the command input unit 12, the decoding program, the decoding program, the reading program, the audio program, and the digital analogy. Turn: ΓΊ文槽 generates digital audio signals. Frequency signal. The amplifier/° 4 converts the digital audio signal into an analog phone 16 and transmits it to the analog audio signal to pass through the interface. The 9-round device 18 outputs the analog audio signal. I = the sound wheel is set to 18 and can be - earphone or - speaker. The micro processing unit 2 is a module diagram of the micro processing unit 1 in FIG. like. The detection module 114 includes a detection module 114 and a mode control template. The processing group 114 responds to the playback generated by the command input unit 12.