public void stop(View view) { try { isStopped = true; exRecorder.stop(); exRecorder.release(); stopBtn.setEnabled(false); playBtn.setEnabled(true); convertchipmunk.setEnabled(true); Toast.makeText(getApplicationContext(), "Stop recording...", Toast.LENGTH_SHORT).show(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (RuntimeException e) { e.printStackTrace(); } }