mfpkey-wmaaecma-micarray-descptrproperty.md

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Specifies the microphone array geometry for the Voice Capture DSP.	1d91bdc8-5a09-487d-b45e-80d57a44cd0e	MFPKEY_WMAAECMA_MICARRAY_DESCPTR Property (Wmcodecdsp.h)	reference	05/31/2018

MFPKEY_WMAAECMA_MICARRAY_DESCPTR Property

Specifies the microphone array geometry for the Voice Capture DSP.

Constant for IPropertyBag

Available only by using IPropertyStore.

Data Type

VT_BLOB

Applies To

• Voice Capture DSP

Remarks

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.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Header	Wmcodecdsp.h

See also

Media Foundation Properties

Voice Capture DSP