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The IDirectSoundCaptureFXNoiseSuppress8 interface is used to set and retrieve parameters on a capture buffer that supports noise suppression. This interface requires Microsoft WindowsXP or later.
IDirectSoundCaptureFXNoiseSuppress8 is a define for IDirectSoundCaptureFXNoiseSuppress. The interface names are interchangeable.
This interface is obtained by calling GetObjectInPath on the buffer that supports the effect.
In addition to the methods inherited from IUnknown, the IDirectSoundCaptureFXNoiseSuppress8 interface exposes the following methods.
| Method | Description |
|---|---|
| IDirectSoundCaptureFXNoiseSuppress8::GetAllParameters | The IDirectSoundCaptureFXNoiseSuppress8::GetAllParameters method retrieves the noise suppression parameters of a buffer. |
| IDirectSoundCaptureFXNoiseSuppress8::Reset | The IDirectSoundCaptureFXNoiseSuppress8::Reset method resets the effect to its initial state. |
| IDirectSoundCaptureFXNoiseSuppress8::SetAllParameters | The IDirectSoundCaptureFXNoiseSuppress8::SetAllParameters method sets the noise suppression parameters of a buffer. |
The LPDIRECTSOUNDNOISESUPPRESS8 type is defined as a pointer to the IDirectSoundNoiseSuppress8 interface:
typedef struct IDirectSoundCaptureFXNoiseSuppress8 *LPDIRECTSOUNDCAPTUREFXNOISESUPPRESS8;
Operating System: Requires Microsoft WindowsXP or later.
Windows: Important Note for Windows Vista
Existing applications that access Windows XP Acoustic Echo Cancellation (AEC) features via the DirectSound API will no longer obtain AEC when running on Windows Vista. These applications will still run, but their calls to AEC-specific DirectSound API calls will have no effect on the captured audio.
To learn how to obtain AEC in Windows Vista, See the Windows Vista AEC topics in the Windows SDK.