- Audio Source: MIC
- Sample rate: 16000
- Number of channels: CHANNEL_CONFIGURATION_MONO
- Format: ENCODING_PCM_16BIT
- Buffer size: 16000 * 30 (30 second buffer)
recorder = new AudioRecord(
MediaRecorder.AudioSource.MIC,
16000,
AudioFormat.CHANNEL_CONFIGURATION_MONO,
AudioFormat.ENCODING_PCM_16BIT,
16000*30);