Audio capture to WAV (PCM/ACM) in Video Capture SDK .Net

foreach (var codec in VideoCapture1.Audio_Codecs)
{
  cbAudioCodecs.Items.Add(codec);
}

var acmOutput = new ACMOutput();

acmOutput.Channels = 2;
acmOutput.BPS = 16;
acmOutput.SampleRate = 44100;
acmOutput.Name = cbAudioCodecs.Text;

VideoCapture1.Output_Format = acmOutput;

VideoCapture1.Mode = VideoCaptureMode.AudioCapture;

VideoCapture1.Output_Filename = "123.wav";

await VideoCapture1.StartAsync();