private async Task StopTracks()
{
Console.Error.WriteLine("Stopping tracks...");
await Task.WhenAll(
_LocalAudioTrack1.Source.Stop().AsTask(TaskCreationOptions.RunContinuationsAsynchronously),
_LocalAudioTrack2.Source.Stop().AsTask(TaskCreationOptions.RunContinuationsAsynchronously),
_LocalVideoTrack1.Source.Stop().AsTask(TaskCreationOptions.RunContinuationsAsynchronously),
_LocalVideoTrack2.Source.Stop().AsTask(TaskCreationOptions.RunContinuationsAsynchronously)
).ConfigureAwait(false);
_LocalAudioTrack1.Destroy();
_LocalAudioTrack2.Destroy();
_LocalVideoTrack1.Destroy();
_LocalVideoTrack2.Destroy();
_RemoteAudioTrack1.Destroy();
_RemoteAudioTrack2.Destroy();
_RemoteVideoTrack1.Destroy();
_RemoteVideoTrack2.Destroy();
}