Android的音频记录 [英] Android Audio record

问题描述

我想知道，如何在android系统，而不是使用MediaRecorder功能AudioRecord录制我们的声音和回放。

I want to know that how to record our voice and playback using AudioRecord functionality in android instead of MediaRecorder.

请给我样品code或URL。
在此先感谢

Please give me sample code or url. Thanks in advance

推荐答案

我觉得你可以用下面的原型样code的启动

I think you can start by using the following prototype kind of code

import android.media.AudioFormat; 
import android.media.AudioRecord; 
import android.media.MediaRecorder; 
import android.util.Log; 
public class AudioListener { 
  public static final int DEFAULT_SAMPLE_RATE = 8000; 
  private static final int DEFAULT_BUFFER_SIZE = 4096; 
  private static final int CALLBACK_PERIOD = 4000;  // 500 msec (sample rate / callback   //period) 
  private final AudioRecord recorder; 
  public AudioListener() { 
    this(DEFAULT_SAMPLE_RATE); 
  } 
  private AudioListener(int sampleRate) { 
    recorder = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, 
        sampleRate, AudioFormat.CHANNEL_CONFIGURATION_DEFAULT, 
        AudioFormat.ENCODING_DEFAULT, DEFAULT_BUFFER_SIZE); 
  } 
  public void start() { 
    recorder.setPositionNotificationPeriod(CALLBACK_PERIOD); 
    recorder.setRecordPositionUpdateListener(new 
AudioRecord.OnRecordPositionUpdateListener() { 
      @Override 
      public void onMarkerReached(AudioRecord recorder) { 
        Log.e(this.getClass().getSimpleName(), "onMarkerReached 
Called"); 
      } 
      @Override 
      public void onPeriodicNotification(AudioRecord recorder) { 
        Log.e(this.getClass().getSimpleName(), "onPeriodicNotification 
Called"); 
      } 
    }); 
    recorder.startRecording(); 
  } 

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