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我知道這個問題已經討論過了,但經過Google搜索後,我無法找到解決方案,爲什麼兩個.wav合併文件無法播放?我將兩個.wav文件合併爲一個文件。但合併的文件正在播放一秒鐘。沒有別的。點擊播放按鈕後,它播放一秒。請給我建議或檢查我的代碼,以確定問題。提前感謝。我使用的代碼兩合併兩個文件是如下:如何合併兩個音頻.wav文件
private static final int RECORDER_SAMPLERATE = 44100;
private static final int RECORDER_BPP = 16;
private void CombineWaveFile(String file1, String file2, String path) {
FileInputStream in1 = null, in2 = null;
FileOutputStream out = null;
long totalAudioLen = 0;
long totalDataLen = totalAudioLen + 36;
long longSampleRate = RECORDER_SAMPLERATE;
int channels = 2;
long byteRate = RECORDER_BPP * RECORDER_SAMPLERATE * channels/8;
byte[] data = new byte[8192];
try {
in1 = new FileInputStream(file1);
in2 = new FileInputStream(file2);
File file_path = new File(path);
file_path.setReadable(true);
out = new FileOutputStream(file_path);
totalAudioLen = in1.getChannel().size() + in2.getChannel().size();
totalDataLen = totalAudioLen + 36;
WriteWaveFileHeader(out, totalAudioLen, totalDataLen,
longSampleRate, channels, byteRate);
while (in1.read(data) != -1) {
out.write(data);
}
while (in2.read(data) != -1) {
out.write(data);
}
out.close();
in1.close();
in2.close();
Log.e("mPAthTemp Combine", file_path.toString());
Log.e("mFileSecond Combine", file2);
Toast.makeText(this, "Done!!", Toast.LENGTH_LONG).show();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private void WriteWaveFileHeader(FileOutputStream out, long totalAudioLen,
long totalDataLen, long longSampleRate, int channels, long byteRate)
throws IOException {
byte[] header = new byte[44];
header[0] = 'R';
header[1] = 'I';
header[2] = 'F';
header[3] = 'F';
header[4] = (byte) (totalDataLen & 0xff);
header[5] = (byte) ((totalDataLen >> 8) & 0xff);
header[6] = (byte) ((totalDataLen >> 16) & 0xff);
header[7] = (byte) ((totalDataLen >> 24) & 0xff);
header[8] = 'W';
header[9] = 'A';
header[10] = 'V';
header[11] = 'E';
header[12] = 'f';
header[13] = 'm';
header[14] = 't';
header[15] = ' ';
header[16] = 16;
header[17] = 0;
header[18] = 0;
header[19] = 0;
header[20] = 1;
header[21] = 0;
header[22] = (byte) channels;
header[23] = 0;
header[24] = (byte) (longSampleRate & 0xff);
header[25] = (byte) ((longSampleRate >> 8) & 0xff);
header[26] = (byte) ((longSampleRate >> 16) & 0xff);
header[27] = (byte) ((longSampleRate >> 24) & 0xff);
header[28] = (byte) (byteRate & 0xff);
header[29] = (byte) ((byteRate >> 8) & 0xff);
header[30] = (byte) ((byteRate >> 16) & 0xff);
header[31] = (byte) ((byteRate >> 24) & 0xff);
header[32] = (byte) (2 * 16/8);
header[33] = 0;
header[34] = RECORDER_BPP;
header[35] = 0;
header[36] = 'd';
header[37] = 'a';
header[38] = 't';
header[39] = 'a';
header[40] = (byte) (totalAudioLen & 0xff);
header[41] = (byte) ((totalAudioLen >> 8) & 0xff);
header[42] = (byte) ((totalAudioLen >> 16) & 0xff);
header[43] = (byte) ((totalAudioLen >> 24) & 0xff);
out.write(header, 0, 44);
}
}
我使用播放音頻文件代碼是如下:
private void startPlaying(String file_path) {
mPlayer = new MediaPlayer();
try {
Log.e("playing", file_path);
mPlayer.setDataSource(file_path);
mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mPlayer.prepare();
mPlayer.start();
mPlayer.setOnCompletionListener(new OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
// TODO Auto-generated method stub
showToast("Complete");
setProgressBar(false);
mButtonStart.setEnabled(true);
mButtonStop.setEnabled(false);
stopPlaying();
}
});
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
給我一個解決方案,爲什麼這個happen.Thanks ..
檢查此鏈接;) [合併Android中兩個或更多個wav文件] [1] [1]:http://stackoverflow.com/questions/11452464/merging-two-or-more- wav-files-in-android – 2013-05-08 06:20:38
我只是使用你提供的URL中給出的相同的代碼。@ Jose Montero – AndiM 2013-05-08 06:21:40