200816850 九、發明說明： 【發明所屬之技術領域】 • 本發明涉及一種音頻處理設備，特別是涉及一種可以 -多路獨立音頻輸出的音頻播放器。 【先前技術】 近來，MP3等音頻播放器越來越受到人們的喜愛，其 數量一直在不斷的增加。但現有技術的可檇式音頻播放器 只能同時供一人使用。參閱圖1，現有技術下的音頻播放 器結構框圖。所述音頻播放器包括：一處理單元1、一通 訊接口 2、一存儲裝置3、一隨機記憶體（RAM) 4、一顯 示單元5，一控制面板6、一編碼解碼器7、一放大器8及 一音頻輸出端口 9。用戶通過通訊接口 2實現該音頻播放 器與個人電腦等設備的互連，可以下載音頻檔到存儲裝置 3。用戶通過控制面板6向處理單元1發出指令選定播放的 音頻檔，所述音頻檔從存儲裝置3暫存入RAM4中，處理 單元1將RAM 4中的音頻檔進行格式轉換後將數位音頻信 號傳送至編碼解碼器7。編碼解碼器7將數位音頻信號轉 換為類比音頻信號後送至放大器8對音頻信號進行放大， 經過放大的音頻信號傳至耳機，用戶便可以通過耳機欣賞 到所述音頻設備播放的音頻檔。同時顯示單元5可以顯示 當前播放的音頻檔的相關資訊，如名稱等。 雖然現在出現可多人共用的耳機，例如中國大陸專利 局2003年12月17日公告的CN03227940.X號名稱為《可 共用耳塞》的專利提供了一種可共用耳塞。但是這種可共 6 200816850 用耳塞只是母耳塞與多個子耳塞的並聯，沒有對播放器進 行改進，每個耳塞的輸出是相同的，彼此之間不能獨立。 •這樣仍然不能真正實現多人共用一個音頻播放器。音頻播 •放器在播放歌曲操作上仍存在不便、不足。 【發明内容】 有鑒於此，本發明提供一種多路獨立音頻輸出的音頻 播放器，實現多人共用一個音頻播放器。 一種多路獨立音頻輸出的音頻播放器，包括一處理單 元，該音頻播放器包括有多個音頻輸出端口，每一音頻輸 出端口順序連接有一放大器及一編碼解碼器，每一放大器 及編碼解碼器連接到處理單元，當多個音頻輸出端口被選 擇輸出音頻時，該處理單元建立多個播放進程，每一播放 進程對應其中一音頻輸出端口，該處理單元採用分時複用 處理方式控制所述不同播放進程進行音頻播放。 所述多路獨立音頻輸出的音頻播放器，每一音頻輸出 端口、放大器及編碼解碼器都具有一唯一標示碼，每一播 放進程的變數包括有進程號及輸出的編碼解碼器標示碼或 /及音頻輸出端口標示碼。當該處理單元控制其中一播放進 程進行音頻播放時，該播放進程變數中的編碼解碼器標示 碼對應的編碼解碼器從該播放進程被分配的記憶體空間中 獲得數位音頻信號，將數位音頻信號轉換為類比音頻信 號，該類比音頻經該編碼解碼器所連接的放大器放大後， 輸出至相應的音頻輸出端口。 所述多路獨立音頻輸出的音頻播放器，所述音頻播放 7 200816850 器還包括-控制面板’通過該控制面板產生播放控制信 號，該處理單元根據所職放㈣㈣控㈣應音頻 .端口的音頻播放。所述控制面板包括至少—端口選擇 .鍵’該端Π選擇按鍵實現控制面板對不同音頻輸出端 選擇。所述音賴放闕包括—顯示單元，軸示單 迴圈顯示當前的播放資訊。 所述夕路獨立音頻輸出的音頻播放器可以實現多人丑 mn，該音頻播放器可以同時處理多個音頻 檔，各音頻輸出端口之間相互獨立輸出 口能夠輸出不同的聲音信號。 【實施方式】 每一 立 頻輪出端 ，關2所示，為本發明多路獨立音頻輸丨的音頻 放益不意圖。該音頻播放器！⑻包括有多個音頻輪 9(圖2中的9A、9B)，每—音頻輪出端”可連接一聲立 ^裝置K)，聲音輪出裝置1G可以為耳機或是揚聲哭: 該曰頻播放器100同時播放多首歌曲，並通 ： :出端Π 9同時獨立輸出不同歌曲的音頻訊號，^同= 者通過不同的音頻輸出端口 9所連接的聲 聽到不同的歌曲。例如，兮立 曰則衣置10可 J 这曰頻播放器100在某一睹利F1 時播放歌曲A及歌曲B，並通過立 ’、 ^ 曲A的音頻訊號，而通過幹2輪出端口 9A輪出歌 立頻妙。顧—_ < ❹9B輸出歌㈣的 曰頻5域。顯不早心可循環顯示當前的播放資訊。 該音頻播放n⑽還包括有—控制面板6、 控制面板6的操作產生播放控制信號，該播放控制 200816850 包括選定音頻輸出端口資訊及播放參數資訊，所述播放參 數資訊包括音量的大小及/或播放歌曲等。音頻播放器100 •根據該播放控制信號選定操作的音頻輸出端口 9A或9B及 4周節選定的音頻輸出端口 9A輸出的播放參數，如音量大小 及播放的歌曲。通過該控制面板6還可以關閉該音頻播放 器 100 〇 參閱圖3所示，為本發明多路獨立音頻輸出的音頻播 放器結構示意圖。本發明的音頻播放器100與現有技術（如 圖1)所揭露的音頻播放器結構之不同在於，本發明的音 頻播放器100有多個音頻輸出端口 9,每一音頻輸出端口 9 順序連接有一編碼解碼器7及一放大器8。例如，音頻輸 出端口 9A順序連接有放大器8A及編碼解碼器7A，音頻 輸出端口 9B順序連接有放大器8B及編碼解碼器7B。每一 音頻輸出端口 9、放大器8及編碼解碼器7都標示有一唯 一標示碼。每一放大器8及編碼解碼器7連接到處理單元 1。當使用者選定其中一音頻輸出端口 9輸出音頻時，該處 理單元1建立一播放進程進行音頻播放，該播放進程的變 數包括有進程號及輸出的編碼解碼器標示碼或/及音頻輸 出端口標不碼’該編碼解碼器為被選定的音頻輸出端口 9 所連接的編碼解碼器7。當多個音頻輸出端口 9被選擇輸 出多音頻時，該處理單元1建立了多個播放進程，該處理 單元1採用分時複用方式處理所述不同播放進程。當該處 理單元1處理其中一播放進程（如播放進程A)時，該播 放進程A進行音樂播放控制，獲得存儲於存儲裝置3相應 9 200816850 歌曲的資料進行解碼（即從 位格式)，將解碼後的數位音頻二 =頻，式解碼為-般數 .4中該播放進程續分機記憶體（歷） 教中的編碼解碼器標示碼對;該播放進程A變 Μ被分配的記憶體”中獲得數位音齡號，將 齡號轉換為舰音頻錢，該模擬音頻_: 7所連接的放大器8放大後，輸出至相應的音頻輸出端/ =連接於該音頻輸出端口9的聲音輸出裝心輸出 參閱圖4所示，為本發明實施方式中多路獨立:頻 ί出的音頻播放器的播放進程控制示意圖。當^頻^ 裔100開啟時，處理單元！啟動一控制進程（步驟 該控制擁接㈣紐•板6的操作產_放 步驟⑴，並將該播放控制資訊寫入到隨機記憶體 (RAM) 4巾（倾S3)。判斷播放控制資訊中包含的立 頻輸出端口資訊對應的播放進程是否開啟（步驟S4)，如 果對應的播放進程未開啟，則啟動音頻輸出端口標示碼對 應的播放進程，並將播放控制資訊中包含的播放^數資訊 賦值於該播放進程，清空隨機記憶體（RAM) 4的播放控 制資訊（步驟S5)。以此_，處理單元i可以根據使^ 者的操作啟動相應的多個播放進程，處理單元工採取八時 複用方式處理所述不同播放進程（步驟S6)。如果對廡的 播放進程已開啟，該控制進程向該播放進程發送控制^令 (步驟S7)，該處理單元χ運行到該播放進程時，曰7 進程訪問隨機記憶體（RAM) 4獲得播放控制資訊 200816850 播放控制資訊進行相應處理，例如更改當前播放的歌曲或 是調節音量等（步驟S8)。 •在本實施方式中，存儲裝置3中還存儲有一播放狀態 •存儲檔案30，該播放狀態存儲檔案3〇存儲各音頻輸出端 口的播放進程關閉時的播放狀態，如播放歌曲、音量及其 他設置等。在S1中，當該控制進程啟動時，該控制進程讀 取該播放狀態存儲檔案30，將播放狀態資訊寫入隨機記憶 體（RAM) 4(步驟S9)。在S5中，當啟動一播放進程時， 該播放進程訪問隨機記憶體（ram) 4獲取相同標示碼（該 標tf碼可以為音頻輸出端口標示碼或者播放進程標示碼） 對應的播放狀態資訊，根據該播放狀態資訊進行該播放進 程的初始化設置及播放（步驟S10)。當關閉某一播放進程 時’控制進程獲得該播放進程關閉時的播放狀態，更新暫 存器4中該播放進程的播放狀態資訊（步驟sn)。當該音 頻播放器關閉時，即關閉該控制進程時，該控制進程根據 存儲於隨機記憶體（RAM) 4的播放狀態資訊更新播放狀 態存儲檔案30 (步驟S12)。 如圖5所不為本發明多路獨立音頻輸出的音頻播放為 的控制面板的第一實施方式示意圖。控制面板6上設置有 多個端口選擇按鍵62、一播放控制按鍵64、一電源按鍵 66及音量調節裝置68。該端口選擇按鍵62的數量與音頻 輸出端口 9的數量相同，並且每一端口選擇按鍵02 —一對 應於其中一音頻輸出端口 9。當使用者使用該音頻播放器 100時’可通過按壓相應的端口選擇按鍵62選擇音頻訊號 11 200816850 輸出的音頻輸出端口 9A或9B，並在一預定時間 ^制按鍵64及音量調節裝置68等控制鍵選擇播^ 曲、執行播放操作(如播放、暫停、上一首、下 止=放）及/或音量調· ’音頻播放器1〇〇 #可控制所^ si曰=1口 Μ的音頻播放相關作業。而通過電源、按鍵 66 了關閉該音頻播放器1〇〇。200816850 IX. Description of the Invention: [Technical Field] The present invention relates to an audio processing device, and more particularly to an audio player capable of multi-channel independent audio output. [Prior Art] Recently, audio players such as MP3s have become more and more popular, and their number has been increasing. However, the prior art portable audio player can only be used by one person at a time. Referring to Figure 1, a block diagram of an audio player in the prior art. The audio player includes: a processing unit 1, a communication interface 2, a storage device 3, a random memory (RAM) 4, a display unit 5, a control panel 6, a codec 7, and an amplifier 8. And an audio output port 9. The user interconnects the audio player with a personal computer through the communication interface 2, and can download the audio file to the storage device 3. The user sends an instruction to the processing unit 1 to select the played audio file through the control panel 6. The audio file is temporarily stored in the RAM 4 from the storage device 3. The processing unit 1 converts the audio file in the RAM 4 and converts the digital audio signal. To codec 7. The codec 7 converts the digital audio signal into an analog audio signal and sends it to the amplifier 8 to amplify the audio signal. The amplified audio signal is transmitted to the earphone, and the user can enjoy the audio file played by the audio device through the earphone. At the same time, the display unit 5 can display information about the currently played audio file, such as a name. Although there are now earphones that can be shared by many people, for example, CN03227940.X, which is published on December 17, 2003 by the Patent Office of China, provides a shareable earplug for the patent entitled "Shareable earplugs". However, the earphones for this type of 2008 earphones are only the parallel connection of the female earplugs and the plurality of sub-ear plugs. The player is not improved, and the output of each earphone is the same and cannot be independent of each other. • This still does not really enable multiple people to share an audio player. The audio player still has inconvenience and insufficiency in playing the song. SUMMARY OF THE INVENTION In view of this, the present invention provides an audio player with multiple independent audio outputs, which enables multiple users to share one audio player. An audio player with multiple independent audio outputs, comprising a processing unit, the audio player comprising a plurality of audio output ports, each audio output port is sequentially connected with an amplifier and a codec, each amplifier and codec Connected to the processing unit, when a plurality of audio output ports are selected to output audio, the processing unit establishes a plurality of playing processes, each playing process corresponds to one of the audio output ports, and the processing unit controls the method by using a time division multiplexing processing manner Audio playback is performed by different playback processes. The multi-channel independent audio output audio player, each audio output port, amplifier and codec has a unique identification code, and the variables of each play process include a process ID and an output codec identifier code or / And audio output port identification code. When the processing unit controls one of the playing processes to perform audio playing, the codec corresponding to the codec identifier in the playing process variable obtains the digital audio signal from the memory space allocated by the playing process, and the digital audio signal is obtained. Converted to an analog audio signal that is amplified by an amplifier connected to the codec and output to the corresponding audio output port. The multi-channel independent audio output audio player, the audio playback 7 200816850 further includes a control panel to generate a playback control signal through the control panel, the processing unit according to the position of the (four) (four) control (four) audio. Port audio Play. The control panel includes at least a port selection button. The port selection button enables the control panel to select different audio outputs. The sound release includes a display unit, and the axis shows a single loop to display the current playback information. The audio player of the singular independent audio output can realize multi-person html, the audio player can process multiple audio files at the same time, and the independent output ports of the audio output ports can output different sound signals. [Embodiment] Each of the vertical frequency wheel outputs, shown as 2, is not intended for the audio benefit of the multi-channel independent audio transmission of the present invention. The audio player! (8) A plurality of audio wheels 9 (9A, 9B in Fig. 2) are included, and each of the audio wheel outlets can be connected to a sound device K), and the sound wheeling device 1G can be a headphone or a speaker crying: The video player 100 simultaneously plays a plurality of songs, and the following: : The output terminal 9 simultaneously outputs the audio signals of different songs at the same time, and the same voice = different voices are heard through the sounds connected by the different audio output ports 9. For example,兮立曰更衣10可J This 播放100 player plays song A and song B at a certain profit F1, and passes the audio signal of ', ^ 曲A, and passes the 2 rounds of port 9A _ _ < ❹ 9B output song (four) 曰 frequency 5 field. Display the current playback information cyclically. The audio playback n (10) also includes - control panel 6, control panel 6 operation Generating a playback control signal, the playback control 200816850 includes selected audio output port information and playback parameter information, the playback parameter information including a volume level and/or playing a song, etc. The audio player 100 • an audio selected for operation according to the playback control signal Output port 9A 9B and 4 weeks of selected audio output port 9A output playback parameters, such as volume and songs played. The audio player 100 can also be turned off via the control panel 6. Referring to Figure 3, the multi-channel independent of the present invention A schematic diagram of an audio player structure of an audio output. The audio player 100 of the present invention differs from the audio player structure disclosed in the prior art (as shown in FIG. 1) in that the audio player 100 of the present invention has a plurality of audio output ports 9, Each of the audio output ports 9 is sequentially connected with a codec 7 and an amplifier 8. For example, the audio output port 9A is sequentially connected with an amplifier 8A and a codec 7A, and the audio output port 9B is sequentially connected with an amplifier 8B and a codec 7B. Each audio output port 9, amplifier 8 and codec 7 is marked with a unique identification code. Each amplifier 8 and codec 7 is connected to the processing unit 1. When the user selects one of the audio output ports 9 to output audio, The processing unit 1 establishes a playing process for audio playing, and the variables of the playing process include a process number and an output. The decoder identification code or/and the audio output port are not coded 'The codec is the codec 7 to which the selected audio output port 9 is connected. When multiple audio output ports 9 are selected to output multi-tone, the process The unit 1 establishes a plurality of playing processes, and the processing unit 1 processes the different playing processes in a time division multiplexing manner. When the processing unit 1 processes one of the playing processes (such as the playing process A), the playing process A performs music. The playback control obtains the data stored in the storage device 3 corresponding to the 200816850 song for decoding (ie, the bit format), and decodes the decoded digital audio 2=frequency, and the expression is decoded into a general number. The playback process continues the extension memory. (Record) The codec of the teaching identifies the code pair; the playback process A changes the allocated memory to obtain the digital age number, converts the age number into the ship audio money, and the analog audio _: 7 is connected After the amplifier 8 is amplified, the output is output to the corresponding audio output terminal /= the sound output core output connected to the audio output port 9 is shown in FIG. 4, which is a multi-channel independent: frequency in the embodiment of the present invention. A schematic diagram of the playback process control of the audio player. When the frequency is turned on, the processing unit! Initiating a control process (steps the control to support (4) the operation of the board 6 to release the step (1), and writing the playback control information to the random memory (RAM) 4 towel (tilt S3). Judging the playback control information Whether the playback process corresponding to the included vertical frequency output port information is enabled (step S4), if the corresponding playback process is not enabled, the playback process corresponding to the audio output port identification code is started, and the playback information included in the playback control information is played. Assigned to the playing process, the playback control information of the random memory (RAM) 4 is cleared (step S5). With this, the processing unit i can start a corresponding plurality of playing processes according to the operation of the device, and the processing unit takes eight The different multiplexing process is processed in the time multiplexing manner (step S6). If the playing process of the pair is turned on, the control process sends a control command to the playing process (step S7), and the processing unit χ runs to the playing process. , 曰7 process access random memory (RAM) 4 Get playback control information 200816850 Play control information for corresponding processing, such as changing the currently playing song or tune In the present embodiment, the storage device 3 further stores a playback state storage file 30 that stores the playback state when the playback process of each audio output port is closed. Such as playing a song, volume and other settings, etc. In S1, when the control process is started, the control process reads the play status storage file 30, and writes the play status information to the random memory (RAM) 4 (step S9). In S5, when a playback process is started, the playing process accesses the random memory (ram) 4 to obtain the same identification code (the standard tf code may be an audio output port identification code or a playback process identification code). And performing initial setting and playing of the playing process according to the playing state information (step S10). When the playing process is closed, the control process obtains the playing state when the playing process is closed, and updates the playing process in the register 4 Playing status information (step sn). When the audio player is turned off, that is, when the control process is closed, the control process is stored according to The playback status information of the memory (RAM) 4 updates the playback status storage file 30 (step S12). Figure 5 is a schematic diagram of a first embodiment of the control panel for audio playback of the multi-channel independent audio output of the present invention. The panel 6 is provided with a plurality of port selection buttons 62, a playback control button 64, a power button 66 and a volume adjustment device 68. The number of the port selection buttons 62 is the same as the number of audio output ports 9, and each port selection button 02 - one corresponds to one of the audio output ports 9. When the user uses the audio player 100, 'the audio output port 9A or 9B outputted by the audio signal 11 200816850 can be selected by pressing the corresponding port selection button 62, and at a predetermined time Control buttons such as time control button 64 and volume adjustment device 68 select play, perform playback operations (such as play, pause, previous, lower stop = release) and/or volume adjustments. 'Audio player 1〇〇# It can control the audio playback related jobs of ^ si曰=1 port. The audio player is turned off by the power button 66.
口如通過按壓其中一端口選擇按鍵62選擇音頻輪出端 '轉“並在預疋時間（如2秒）内通過播放控制按鍵64 ^下-首”功能，音頻播放器⑽播放該音頻輸出端 口 9A當前播放歌曲的下一首歌曲。或是，通過跑中一 端口選擇按鍵62選擇音頻輪出端口 9A，並在狀時間（如 =)内通過音量調節裝置68觸音量，則音頻播放器1〇〇 调郎該音頻輸出端口 9A輸出的音量。 如圖6所不為本發明多路獨立音頻輸出的音頻播放器 的控制面板的第二實施方式示意圖。控制面板6上設置有 一個端Π選擇按鍵62、-播放控制按鍵64、—電源按鍵 %及音f調節裝置68。當使时使㈣音賴放器⑽ 時可通過按壓該端口選擇按鍵62選擇音頻訊號輸出的音 頻輸出端口 9A或9B，並在一預定時間内通過播放控制按 鍵64及音罝調節裝置68等控制鍵選擇播放的歌曲、執行 播放知作（如播放、暫停、上一首、下—首或停止播放） 及/或音量調節，音頻播放器100即可控制所選擇的音頻輸 出端〇 9A的音頻播放相關作業。而通過電源按鍵66可關 閉該音頻播放器100。 12 200816850 當然上述的輸出選擇操作及播放控制操作可 方式來實現，例如通過顯示單元5提供—顯示 <其他 來制面板6上設置的按鍵在該顯示單元選擇音頻輪^通過 .頻端口及播放參數資訊，如音量及播放的歌曲。的音 【圖式簡單說明] 圖1係為現有技術下的音頻播放ϋ結構框圖。 意 圖。圖2係為本發明多路獨立音頻輪出的音頻播放器 示意圖圖。3係為本發明多路獨立音頻輪出的音頻播放器結構 圖4係為本發明實施方式令多路獨立 播放器的播放進程式控制制示意圖。曰頻輪出的音頻 圖5係為本發明多路獨立音 制面板的第一實施方式示意圖。’j的曰頻播放器的控 圖6係為本發明多路獨立音 制面板的第二實施方式示意圖。以的音頻播放器的控 【主要元件符號說明】 音頻播放器 處理單元 100 通訊接口 存儲裝置 隨機存儲器 顯示單元 控制面板 6 13 200816850 編碼解碼器 7 放大器 8 音頻輸出端口 9 聲音輸出裝置 10 端口選擇按鍵 62 控制按鍵 64 音量調節裝置 68 14The audio player (10) plays the audio output port by pressing one of the port selection buttons 62 to select the audio wheel out terminal 'turn' and playing the control button 64^down-first" function during the preview time (eg, 2 seconds). 9A The next song of the currently playing song. Alternatively, the audio wheeling port 9A is selected by running a port selection button 62, and the volume is touched by the volume adjusting device 68 during the time (eg, =), then the audio player 1 〇〇 该 the audio output port 9A output The volume. FIG. 6 is a schematic diagram of a second embodiment of a control panel of an audio player that is not a multi-channel independent audio output of the present invention. The control panel 6 is provided with a terminal selection button 62, a playback control button 64, a power button %, and a tone f adjusting device 68. When the (four) tone applicator (10) is enabled, the audio output port 9A or 9B of the audio signal output can be selected by pressing the port selection button 62, and controlled by the play control button 64 and the pitch adjustment device 68 for a predetermined time. The audio player 100 can control the audio of the selected audio output terminal A9A by selecting the played song, performing the playback knowing (such as playing, pausing, previous, lower-first or stop playing) and/or volume adjustment. Play related jobs. The audio player 100 can be turned off by the power button 66. 12 200816850 Of course, the above-mentioned output selection operation and playback control operation can be implemented, for example, by the display unit 5 - display < other buttons provided on the panel 6 to select the audio wheel in the display unit through the frequency port and play Parameter information such as volume and songs played. [Simulation of the drawing] FIG. 1 is a block diagram of the audio playing structure in the prior art. Intention. 2 is a schematic diagram of an audio player in which multiple independent audio wheels are rotated according to the present invention. 3 is an audio player structure for multi-channel independent audio rotation of the present invention. FIG. 4 is a schematic diagram of a playback process control system for a multi-channel independent player according to an embodiment of the present invention.音频 轮 的 音频 图 图 图 Figure 5 is a schematic view of a first embodiment of a multi-channel independent sound panel of the present invention. Fig. 6 is a schematic view of a second embodiment of the multi-channel independent sound panel of the present invention. Control of the audio player [Main component symbol description] Audio player processing unit 100 Communication interface storage device Random access memory display unit Control panel 6 13 200816850 Codec 7 Amplifier 8 Audio output port 9 Sound output device 10 Port selection button 62 Control button 64 volume adjustment device 68 14