Android USB audio recording not working in Samsung S

I am working on an application for recording audio through an external USB microphone. It works fine (records audio from USB microphone) with Motorola devices (Moto g running lollipop), but Samsung Tab S (lollipop) audio is only recorded from built-in microphone.

I am using audioRecord class for recording

int bufferSize = AudioRecord.getMinBufferSize(44100,
        AudioFormat.CHANNEL_IN_STEREO, AudioFormat.ENCODING_PCM_16BIT);
byte[] mBuffer = new byte[bufferSize];
AudioRecord mRecorder = new AudioRecord(MediaRecorder.AudioSource.MIC,
        44100, AudioFormat.CHANNEL_IN_STEREO,
        AudioFormat.ENCODING_PCM_16BIT, bufferSize);
if (AudioRecord.STATE_INITIALIZED == mRecorder.getState()) {
    mRecorder.startRecording();
}

      

        
        
        
      

    

Is there any way to switch audio source from built-in microphone to USB microphone so that it works in Samsung too.

Thank.