Android直接播放麦克风采集到的声音

Android直接播放麦克风采集到的声音

Android直接播放麦克风采集到的声音_android 调用麦克风获取语音流-CSDN博客

 class RecordThread extends Thread{  
    static final int frequency = 44100;  
    static final int channelConfiguration = AudioFormat.CHANNEL_CONFIGURATION_MONO;  
    static final int audioEncoding = AudioFormat.ENCODING_PCM_16BIT;  
@Override  
public void run() {  
    // TODO Auto-generated method stub  
    int recBufSize = AudioRecord.getMinBufferSize(frequency,  
            channelConfiguration, audioEncoding)*2;  
    int plyBufSize = AudioTrack.getMinBufferSize(frequency,  
            channelConfiguration, audioEncoding)*2;  
      
    AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, frequency,  
            channelConfiguration, audioEncoding, recBufSize);  
  
    AudioTrack audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, frequency,  
            channelConfiguration, audioEncoding, plyBufSize, AudioTrack.MODE_STREAM);  
      
    byte[] recBuf = new byte[recBufSize];  
    audioRecord.startRecording();  
    audioTrack.play();  
    while(true){  
        int readLen = audioRecord.read(recBuf, 0, recBufSize);  
        audioTrack.write(recBuf, 0, readLen);  
    }  
    audioTrack.stop();  
    audioRecord.stop();  
}  
  }  



RecordThread rec = new RecordThread();  
rec.start(); 

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