I'm not able to play buffer tone

[ApkCreator]

Hello,

I got the erreor message "Failed to set source" believing in line audioPlayer.play(BytesSource(bytes),);

Do you have an solution?

import 'package:audioplayers/audioplayers.dart';
import 'dart:typed_data';
import 'dart:math';
import 'package:flutter/material.dart';

void main() {
  runApp(const MainApp());
}

class MainApp extends StatelessWidget {
  const MainApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Play Tone'),
        ),
        body: ElevatedButton(
          onPressed: () => generateTone(700),
          child: const Text('press'),
        ),
      ),
    );
  }

  void generateTone(double frequency) {
    AudioPlayer audioPlayer = AudioPlayer();

    // Dauer des Tons in Sekunden
    double duration = 2.0;

    // Anzahl der Samplepunkte pro Sekunde (üblicherweise 44.1 kHz)
    int sampleRate = 44100;

    // Berechne die Anzahl der Samplepunkte für die Dauer
    int totalSamples = (duration * sampleRate).round();

    // Erstelle ein Byte-Array für die Audiodaten
    Uint8List bytes = Uint8List(totalSamples * 2); // *2 für 16-bit Audio

    for (int i = 0; i < totalSamples; i++) {
      double value = 32767.0 * sin(2.0 * pi * frequency * i / sampleRate);
      // Konvertiere den Wert in ein 16-bit-Integer und setze die Bytes im Array
      bytes[i * 2] = (value.toInt() & 0xff);
      bytes[i * 2 + 1] = ((value.toInt() >> 8) & 0xff);
    }

    // Spiele die erzeugten Audiodaten ab
   
    audioPlayer.play(BytesSource(bytes),);
  }
}

Thanks a lot.
Volkmar

[Gustl22]

It was not available on all platforms, see the parity table. However this could work with #1763, once released. Interesting algorithm though ;D