nn-audioengineextensionapo-iaudiosystemeffects3.md

UID	tech.root	title	ms.date	targetos	description	prerelease	req.assembly	req.construct-type	req.ddi-compliance	req.header	req.idl	req.include-header	req.max-support	req.namespace	req.redist	req.target-min-winverclnt	req.target-min-winversvr	req.target-type	req.unicode-ansi	topic_type	api_type	api_location	api_name	f1_keywords	dev_langs
NN:audioengineextensionapo.IAudioSystemEffects3	audio	IAudioSystemEffects3	06/19/2021	Windows	Implemented by clients that require an APOInitSystemEffects3 structure to be passed into the IAudioProcessingObject::Initialize method.	false		iface		audioengineextensionapo.h						Windows Build 22000				apiref	COM	audioengineextensionapo.h	IAudioSystemEffects3	IAudioSystemEffects3 audioengineextensionapo/IAudioSystemEffects3	c++

-description

Implementing this interface also implies that the APO supports the APO Settings framework and allows the APO to subscribe for common audio related notifications from the Audio Engine

This interface is also implemented by clients that require an APOInitSystemEffects3 structure to be passed into the IAudioProcessingObject::Initialize method. APOInitSystemEffects3 adds the ability to obtain a service provider such as IAudioProcessingObjectLoggingService or IAudioProcessingObjectRTQueueService.

Note

On OS versions earlier than Windows Build 22000, the system will not pass an APOInitSystemEffects3 into IAudioProcessingObject::Initialize even if the client implements IAudioSystemEffects3, but will instead pass an older version of the structure, APOInitSystemEffects2 or APOInitSystemEffects, into Initialize.

-remarks

For more information on the Windows 11 APIs for the Audio Processing Objects (APOs) that can ship with audio drivers, see Windows 11 APIs for Audio Processing Objects.

-see-also