I have the following Dart code:

import 'dart:io';
import 'dart:typed_data';

final data = Uint16List(signal.length);
double value = 0.0;
int normValue = 0;

for (var i = 0; i < signal.length; i++) {
    value = signal[i];
    normValue = (value * 32767).toInt();
    data[i] = normValue;
}

final dataBytes = data.buffer.asUint8List();

How can I reproduce bits of data without using external libraries?

I tried using web_audio and HTML, but there was a platform compatibility error.