我正在尝试从 MIC 直接录制到一个短阵列。
目标不是用音轨编写文件，只需将其保存在一个短数组中。
如果尝试了几种方法，我发现最好的方法是使用 AudioRecord 录制并使用 AudioTrack 播放。我在这里找到了一个很好的课程：
这个类满足了我的所有需求，我只需要修改它即可达到我想要的结果，但是......我不太明白，我错过了一些东西......
这是我的修改（根本不起作用）：
private class Audio extends Thread {
private boolean stopped = false;
/**
* Give the thread high priority so that it's not canceled unexpectedly, and start it
*/
private Audio()
{
android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_URGENT_AUDIO);
start();
}
@Override
public void run()
{
Log.i("Audio", "Running Audio Thread");
AudioRecord recorder = null;
AudioTrack track = null;
//short[][] buffers = new short[256][160];
int ix = 0;
/*
* Initialize buffer to hold continuously recorded audio data, start recording, and start
* playback.
*/
try
{
int N = AudioRecord.getMinBufferSize(8000,AudioFormat.CHANNEL_IN_MONO,AudioFormat.ENCODING_PCM_16BIT);
recorder = new AudioRecord(AudioSource.MIC, 8000, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, N*10);
short[] buff = new short[N];
recorder.startRecording();
/*
* Loops until something outside of this thread stops it.
* Reads the data from the recorder and writes it to the audio track for playback.
*/
while(!stopped) {
//Log.i("Map", "Writing new data to buffer");
//short[] buffer = buffer[ix++ % buffer.length];
N = recorder.read(buff, 0, buff.length);
}
recorder.stop();
recorder.release();
track = new AudioTrack(AudioManager.STREAM_MUSIC, 8000,
AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT, N*10, AudioTrack.MODE_STREAM);
track.play();
for (int i =0; i< buff.length;i++) {
track.write(buff, i, buff.length);
}
} catch(Exception x) {
//Log.e("Audio", x.getMessage());
x.printStackTrace();
} finally {
track.stop();
track.release();
}
}
/**
* Called from outside of the thread in order to stop the recording/playback loop
*/
private void close()
{
stopped = true;
}
}
我需要的是在短数组缓冲区中录制声音，当用户按下按钮时，播放它......但现在，我正在尝试录制声音，当用户按下按钮时，录制停止和声音开始播放...
任何人都可以帮助我吗？
谢谢。