Handling a WebRTC byte[] stream? - node.js

Question

I'm basically trying to record audio chunks from a webrtc stream, I've been able to send the binary data with help of this resource HTML Audio Capture streaming to Node.js.
Im using netty-socketio, as this library plays well with socket-io on the client side.
Here are my server endpoints:
server.addEventListener("audio-blob", byte[].class, (socketIOClient, bytes, ackRequest) -> {
byteArrayList.add(bytes);
});
server.addEventListener("audio-blob-end", Object.class, (socket, string, ackRequest) -> {
ByteArrayInputStream in = new ByteArrayInputStream(byteArrayList.getArray());
AudioInputStream audiIn = new AudioInputStream(in, getAudioFormat(), 48000l);
AudioFileFormat.Type fileType = AudioFileFormat.Type.WAVE;
File wavFile = new File("RecordAudio.wav");
AudioSystem.write(audiIn,fileType,wavFile);
});
The format settings:
public static AudioFormat getAudioFormat() {
float sampleRate = 48000;
int sampleSizeInBits = 8;
int channels = 2;
boolean signed = true;
boolean bigEndian = true;
AudioFormat format = new AudioFormat(sampleRate, sampleSizeInBits,
channels, signed, bigEndian);
return format;
}
Im using this class to collect the byte arrays (and yes I know the risk with this solution)
class ByteArrayList {
private List<Byte> bytesList;
public ByteArrayList() {
bytesList = new ArrayList<Byte>();
}
public void add(byte[] bytes) {
add(bytes, 0, bytes.length);
}
public void add(byte[] bytes, int offset, int length) {
for (int i = offset; i < (offset + length); i++) {
bytesList.add(bytes[i]);
}
}
public int size(){
return bytesList.size();
}
public byte[] getArray() {
byte[] bytes = new byte[bytesList.size()];
for (int i = 0; i < bytesList.size(); i++) {
bytes[i] = bytesList.get(i);
}
return bytes;
}
}
The generated wav file only plays noise though, no recording is present. What am I doing wrong?

Answer 1

When Google:ing around for answers I stumbled upon this resource how to save a wav file
What I was doing wrong is that I had a fixed size on the AudioInputstream constructor parameter:
new AudioInputStream(in, getAudioFormat(), 48000l)
changed it to the:
new AudioInputStream(in, getAudioFormat(),byteArrayList.getArray().length);