How to use this library with live recording

Hi,

I am working on an Audio recording function. I want the recorded Audio to be saved into the internal cache directory of my app so that I can later process it and send it to my server. I have taken the `RECORD_AUDIO_PERMISSION` in my Android Manifest.

Below is the code I am using for recording audio and save it to a file.

```
String uuid = UUID.randomUUID().toString();
fileName = getExternalCacheDir().getAbsolutePath() + "/" + uuid + ".3gp";

recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
recorder.setOutputFile(fileName);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

try {
recorder.prepare();
recorder.start();
} catch (IOException e) {}
```

The above code to work fine but I am facing another issue. I want to create a Waveform effect for my app for which I am using this library. I know the below code can be used to pass on bytes to the visualizer.

```
//get reference to visualizer
mVisualizer = findViewById(R.id.blast);

//TODO: get the raw audio bytes

//pass the bytes to visualizer
mVisualizer.setRawAudioBytes(bytes);
```

Now, my question is how can I get the Bytes in real-time of the Audio which is being recorded and being saved? Should I read the file and extract recent bytes from it at regular intervals or is there any other method to achieve this?

Any help would be appreciated

Thanks.