get Buffer Size for AudioRecord - Android android.media

Android examples for android.media:Audio

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Description

get Buffer Size for AudioRecord

Demo Code

import android.media.AudioFormat;
import android.media.AudioRecord;

public class Main {

  public static int getBufferSize() {
    return AudioRecord.getMinBufferSize(getMaxSampleRate(), android.media.AudioFormat.CHANNEL_IN_MONO,
        android.media.AudioFormat.ENCODING_PCM_16BIT);
  }/*from www .  ja v a 2  s .co  m*/

  public static int getMaxSampleRate() {
    int maxSampleRate = -1;
    int[] possibleSampleRates = { 48000, 44100, 22050, 16000, 11025, 8000 };

    for (int i = 0; i < possibleSampleRates.length; i++) {
      int bufferSize = AudioRecord.getMinBufferSize(possibleSampleRates[i], AudioFormat.CHANNEL_IN_MONO,
          AudioFormat.ENCODING_PCM_16BIT);
      if (bufferSize > 0) {
        maxSampleRate = possibleSampleRates[i];
        return maxSampleRate;
      }
    }
    return maxSampleRate;
  }

}

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