BotSharp/tests/BotSharp.Test.RealtimeVoice/SpeakOutput.cs

using NAudio.Wave;

namespace BotSharp.Test.RealtimeVoice;

public class SpeakerOutput : IDisposable
{
    BufferedWaveProvider _waveProvider;
    WaveOutEvent _waveOutEvent;

    public SpeakerOutput()
    {
        WaveFormat outputAudioFormat = new(
            rate: 24000,
            bits: 16,
            channels: 1);
        _waveProvider = new(outputAudioFormat)
        {
            BufferDuration = TimeSpan.FromMinutes(5),
            DiscardOnBufferOverflow = false
        };
        _waveOutEvent = new();
        _waveOutEvent.Init(_waveProvider);
        _waveOutEvent.Play();
    }

    public void EnqueueForPlayback(byte[] audioData)
    {
        byte[] buffer = audioData?.ToArray() ?? [];
        _waveProvider.AddSamples(buffer, 0, buffer.Length);
    }

    public void ClearPlayback()
    {
        _waveProvider.ClearBuffer();
    }

    public void Dispose()
    {
        _waveOutEvent?.Dispose();
    }
}