Specifies the microphone array geometry for the Voice Capture DSP.

Constant for IPropertyBag

Available only by using IPropertyStore.

Data Type


Applies To


The value of this property is a KSAUDIO_MIC_ARRAY_GEOMETRY structure. This structure is defined in the header file KsMedia.h. To get the microphone array geometry, query the audio device for the KSPROPERTY_AUDIO_MIC_ARRAY_GEOMETRY property by calling the IKsControl::KSProperty method on the device. For more information on microphone arrays, download the white paper How to Build and Use Microphone Arrays for Windows Vista.

Set this property if you are using the DSP in filter mode and microphone array processing is enabled. If you are using the DSP in source mode, the DSP automatically queries the device for the geometry information.


Minimum supported client
Windows Vista [desktop apps only]
Minimum supported server
Windows Server 2008 [desktop apps only]

See also

Media Foundation Properties

Voice Capture DSP