public static Microsoft.DirectX.DirectSound.WaveFormat CreateWaveFormat(int hz, short bits, short channels)
{
Microsoft.DirectX.DirectSound.WaveFormat format = new Microsoft.DirectX.DirectSound.WaveFormat();
format.FormatTag = Microsoft.DirectX.DirectSound.WaveFormatTag.Pcm;
format.SamplesPerSecond = hz;
format.BitsPerSample = bits;
format.Channels = channels;
format.BlockAlign = (short)(format.Channels * (format.BitsPerSample / 8));
format.AverageBytesPerSecond = format.BlockAlign * format.SamplesPerSecond;
return(format);
}
private void initMasterPeakRetrieval(Microsoft.DirectX.DirectSound.DeviceInformation deviceInformation)
{
Microsoft.DirectX.DirectSound.CaptureDevicesCollection audioDevices = new Microsoft.DirectX.DirectSound.CaptureDevicesCollection();
for (int deviceIndex = 0; deviceIndex < audioDevices.Count; deviceIndex++)
{
if (captureMixer.DeviceDetail.MixerName == audioDevices[deviceIndex].Description)
{
// captureMixer.DeviceDetail.MixerName
// initialize the capture buffer on the defaut device
Microsoft.DirectX.DirectSound.Capture cap = new Microsoft.DirectX.DirectSound.Capture(audioDevices[deviceIndex].DriverGuid);
Microsoft.DirectX.DirectSound.CaptureBufferDescription desc = new Microsoft.DirectX.DirectSound.CaptureBufferDescription();
Microsoft.DirectX.DirectSound.WaveFormat wf = new Microsoft.DirectX.DirectSound.WaveFormat();
wf.BitsPerSample = 16;
wf.SamplesPerSecond = SAMPLE_FREQUENCY;
wf.Channels = 2;
wf.BlockAlign = (short)(wf.Channels * wf.BitsPerSample / 8);
wf.AverageBytesPerSecond = wf.BlockAlign * wf.SamplesPerSecond;
wf.FormatTag = Microsoft.DirectX.DirectSound.WaveFormatTag.Pcm;
desc.Format = wf;
desc.BufferBytes = SAMPLES * wf.BlockAlign;
buffer = new Microsoft.DirectX.DirectSound.CaptureBuffer(desc, cap);
buffer.Start(true);
}
}
}