!7 import android.media.*; 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(); }