Android Audio Recording

Question

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

Please give me an example code or url. thanks in advance

Answer 1

I think you can start by using the following code prototype 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(); 
  }