AEC_SYSTEM_MODE Enumeration

Specifies the processing mode for the voice capture DSP. This enumeration is used with the MFPKEY_WMAAECMA_SYSTEM_MODE property.

Syntax

typedef enum  {
  SINGLE_CHANNEL_AEC       = 0,
  ADAPTIVE_ARRAY_ONLY,
  OPTIBEAM_ARRAY_ONLY,
  ADAPTIVE_ARRAY_AND_AEC,
  OPTIBEAM_ARRAY_AND_AEC,
  SINGLE_CHANNEL_NSAGC,
  MODE_NOT_SET 
} AEC_SYSTEM_MODE;

Constants

• SINGLE_CHANNEL_AEC
  AEC processing only.

• ADAPTIVE_ARRAY_ONLY
  Reserved.

• OPTIBEAM_ARRAY_ONLY
  Microphone array processing only.

• ADAPTIVE_ARRAY_AND_AEC
  Reserved.

• OPTIBEAM_ARRAY_AND_AEC
  Microphone array processing and AEC processing.

• SINGLE_CHANNEL_NSAGC
  No microphone array processing and no AEC processing.

• MODE_NOT_SET
  Uninitialized. This value is the initial value of the MFPKEY_WMAAECMA_SYSTEM_MODE property. Do not set this value.

Remarks

In all modes, the DSP applies noise suppression and automatic gain control by default. To disable noise suppression, set the MFPKEY_WMAAECMA_FEATR_NS property. To disable automatic gain control, set the MFPKEY_WMAAECMA_FEATR_AGC property.

Requirements

Minimum supported client	Windows XP
Minimum supported server	Windows Server 2003
Header	Wmcodecdsp.h

See Also

Enumeration Types

Using the Voice Capture DSP

Voice Capture

 

 

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Build date: 4/7/2010