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MFPKEY_WMAAECMA_FEATR_AGC Property

Specifies whether the Voice Capture DSP performs automatic gain control.

Constant for IPropertyBag

Available only by using IPropertyStore.

Data Type

VT_BOOL

Default Value

VARIANT_FALSE

Applies To

Remarks

Automatic gain control is a digital signal processing (DSP) component that adjusts the gain so that the output level of the signal remains within the same approximate range.

This property can have the following values.

Value Description
VARIANT_FALSE Disable automatic gain control.
VARIANT_TRUE Enable automatic gain control.

The default value of this property is VARIANT_FALSE (disabled). Before setting this property, you must set the MFPKEY_WMAAECMA_FEATURE_MODE property to VARIANT_TRUE.

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

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