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Specifies the processing mode for the voice capture DSP. This enumeration is used with the MFPKEY_WMAAECMA_SYSTEM_MODE property.
Syntax
typedef enum AEC_SYSTEM_MODE {
SINGLE_CHANNEL_AEC = 0,
ADAPTIVE_ARRAY_ONLY,
OPTIBEAM_ARRAY_ONLY,
ADAPTIVE_ARRAY_AND_AEC,
OPTIBEAM_ARRAY_AND_AEC,
SINGLE_CHANNEL_NSAGC,
MODE_NOT_SET
} ;
Constants
SINGLE_CHANNEL_AECValue: 0 AEC processing only. |
ADAPTIVE_ARRAY_ONLYReserved. |
OPTIBEAM_ARRAY_ONLYMicrophone array processing only. |
ADAPTIVE_ARRAY_AND_AECReserved. |
OPTIBEAM_ARRAY_AND_AECMicrophone array processing and AEC processing. |
SINGLE_CHANNEL_NSAGCNo microphone array processing and no AEC processing. |
MODE_NOT_SETUninitialized. 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
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Header | wmcodecdsp.h |