音頻文件損壞使用PhoneGap 1.6.1的mediaRec.startRecord（）1.6.1

Question

我試圖使用media.startRecord（）PhoneGap 1.6.1 API（http://docs.phonegap.com/en/1.6.1/cordova_media_media.md.html#media.startRecord）在實際設備上記錄示例音頻。 startRecord（）API可以在沒有錯誤的情況下執行。錄製完成後創建音頻文件。但是，錄製的音頻文件的大小非常小（〜9kB），與具有相同長度的商業錄製應用程序的錄製文件相比，但大小約爲100kB。我將我的應用程序中的音頻文件下載到Windows，並且無法播放。

我使用的樣本代碼從PhoneGap的音頻記錄：

function startRecording() { 
    // Create your Media object 

    var src="recording.wav" 
    mediaRec = new Media(src, 

     // Success callback 
     function() { 
      console.log("mediaRec -> success"); 
     }, 

     // Error callback 
     function(err) { 
      if (typeof err.message != 'undefined') 
       err = err.message; 
      console.log("Error : " + err); 
    }); 

    // Record audio 
    mediaRec.startRecord(); 
} 


function stopRecording(){ 
    console.log("stop recording..."); 
    mediaRec.stopRecord(); 
} 

我加在AndroidManifest.xml以下權限：

<uses-permission android:name="android.permission.RECORD_AUDIO"/> 
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> 

沒有錯誤時mediaRec.startRecord（ ）和mediaRec.startRecord（）被執行。日誌看起來是這樣的：

11-23 11:46:34.975: I/Web Console(3646): start recording... 
11-23 11:46:35.178: I/AudioHardwareQSD(3216): AudioHardware PCM record is going to standby. 
11-23 11:46:35.178: I/AudioHardwareQSD(3216): do input routing device 40000 
11-23 11:46:35.178: I/AudioHardwareQSD(3216): Routing audio to speaker(builtin-mic) 
11-23 11:46:35.178: D/AudioHardwareQSD(3216): Switching audio device to 
11-23 11:46:35.178: D/AudioHardwareQSD(3216): Speakerphone 
11-23 11:46:35.178: I/MPEG4Writer(3216): limits: 2147483647/0 bytes/us, bit rate: 12200 bps and the estimated moov size 3072 bytes 
11-23 11:46:35.205: I/AudioHardwareQSD(3216): AudioHardware PCM record is going to standby. 
11-23 11:46:35.205: I/AudioHardwareQSD(3216): do input routing device 40000 
11-23 11:46:35.205: I/AudioHardwareQSD(3216): Routing audio to speaker(builtin-mic) 
11-23 11:46:35.205: D/AudioHardwareQSD(3216): Switching audio device to 
11-23 11:46:35.205: D/AudioHardwareQSD(3216): Speakerphone 
11-23 11:46:35.205: I/AudioHardwareQSD(3216): do input routing device 40000 
11-23 11:46:35.205: I/AudioHardwareQSD(3216): Routing audio to speaker(builtin-mic) 
11-23 11:46:35.445: I/MPEG4Writer(3216): setStartTimestampUs: 269619 
11-23 11:46:35.445: I/MPEG4Writer(3216): Earliest track starting time: 269619 
11-23 11:46:35.495: D/CordovaLog(3646): mediaRec -> success 
11-23 11:46:35.495: D/CordovaLog(3646): file:///data/data/com.voiceRec2/files/www/default/js/voiceRec2.js: Line 34 : mediaRec -> success 
11-23 11:46:35.495: I/Web Console(3646): mediaRec -> success at file:///data/data/com.voiceRec2/files/www/default/js/voiceRec2.js:34 
11-23 11:46:40.005: D/dalvikvm(3512): GC_EXPLICIT freed 290K, 45% free 3809K/6855K, external 1685K/2133K, paused 48ms 
11-23 11:46:44.995: D/CordovaLog(3646): mediaRec sr: recording.wav 

11-23 11:46:45.045: I/MPEG4Writer(3216): Received total/0-length (481/0) buffers and encoded 481 frames. - audio 
11-23 11:46:45.045: I/MPEG4Writer(3216): Audio track drift time: 118795 us 
11-23 11:46:45.085: I/AudioHardwareQSD(3216): AudioHardware PCM record is going to standby. 
11-23 11:46:45.085: I/AudioHardwareQSD(3216): do input routing device 40000 
11-23 11:46:45.085: I/AudioHardwareQSD(3216): Routing audio to speaker(builtin-mic) 
11-23 11:46:45.085: D/AudioHardwareQSD(3216): Switching audio device to 
11-23 11:46:45.085: D/AudioHardwareQSD(3216): Speakerphone 
11-23 11:46:45.085: I/AudioHardwareQSD(3216): do input routing device 0 
11-23 11:46:45.085: I/AudioHardwareQSD(3216): Routing audio to Speakerphone 
**11-23 11:46:45.085: D/MPEG4Writer(3216): 0 chunks are written in the last batch** 
11-23 11:46:45.105: D/CordovaLog(3646): mediaRec -> success 

的「0塊被寫在最後一批」可疑，可以，但我不知道是什麼意思。任何人都可以告訴我我哪裏做錯了，並指向正確的方向？先謝謝你！！對於V1.6 :)

明

Answer 1

API文檔沒有提到這一點，但latest API doc說，在AMR格式，而不是Android的WAV記錄。