!7

static int bufferSize = 8192;

p {
  AudioRecord recorder = new AudioRecord.Builder()
    .setAudioSource(MediaRecorder.AudioSource.VOICE_COMMUNICATION)
    .setAudioFormat(new AudioFormat.Builder()
      .setEncoding(AudioFormat.ENCODING_PCM_16BIT)
      .setSampleRate(16000)
      .setChannelMask(AudioFormat.CHANNEL_IN_MONO)
      .build())
   .setBufferSizeInBytes(bufferSize)
   .build();
}