private abstract class MusicPlayerInterface {
        private ParseProfileManager parseProfileManager = new ParseProfileManager("");
        OmeAudioProcessing mAudioProcessing = new OmeAudioProcessing();
        OmeEarPrint omeEarPrint = null;

        public void setAudioProcessing(boolean isOn) {
            if (isOn && !parseProfileManager.isEarPrintSelected()) {
                omeEarPrint = parseProfileManager.selectHardCodedEarPrint();
            } else {
                parseProfileManager.clearCurrentEarPrint();
            }
            boolean earPrintSelected = parseProfileManager.isEarPrintSelected();
            Log.d("dd", "Is earPrint selected: " + earPrintSelected);
            mAudioProcessing.setProcessOn(isOn);
            OmeEarPrint currentEarPrint = parseProfileManager.getCurrentEarprint();
            if (currentEarPrint == null)
                return;
            byte[] profileBuffer = currentEarPrint.getProfileBuffer();
            Log.d("dd", "Profile buffer: " + Arrays.toString(profileBuffer));
        }

        public void resetProcessing() {
            mAudioProcessing.resetProcess();
        }

        public abstract void playFile(Activity activity, String file);

        public abstract void stop();
    }