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);
}
}
}
private void initMasterPeakRetrieval()
{
Microsoft.DirectX.DirectSound.CaptureDevicesCollection audioDevices = new Microsoft.DirectX.DirectSound.CaptureDevicesCollection();
Microsoft.DirectX.DirectSound.DeviceInformation deviceInformation = audioDevices[captureMixer.DeviceId];
initMasterPeakRetrieval(deviceInformation);
}
private void initMasterPeakRetrieval(string deviceName)
{
Microsoft.DirectX.DirectSound.CaptureDevicesCollection audioDevices = new Microsoft.DirectX.DirectSound.CaptureDevicesCollection();
for (int deviceId = 0; deviceId < audioDevices.Count; deviceId++)
{
if (audioDevices[deviceId].Description == deviceName)
{
initMasterPeakRetrieval(audioDevices[deviceId]);
break;
}
}
}
private string getDeviceFriendlyName(Guid deviceGuid, bool trimAtLengthLimit)
{
// Retrieve the available DirectSound capture devices
Microsoft.DirectX.DirectSound.CaptureDevicesCollection audioDevices = new Microsoft.DirectX.DirectSound.CaptureDevicesCollection();
for (int deviceId = 0; deviceId < audioDevices.Count; deviceId++)
{
if (audioDevices[deviceId].DriverGuid == deviceGuid)
{
if (!String.IsNullOrEmpty(audioDevices[deviceId].Description))
{
if (trimAtLengthLimit && audioDevices[deviceId].Description.Length > DEVICE_FRIENDLY_NAME_MAX_LENGTH)
{
return audioDevices[deviceId].Description.Substring(0, DEVICE_FRIENDLY_NAME_MAX_LENGTH);
}
else
{
return audioDevices[deviceId].Description;
}
}
else
{
return null;
}
}
}
return null;
}
