HD Audio AS372 - Page 22

It indicates the playback sound effect status.
HD 7.1 USB AUDIO V3.0
6. In effect indicator
7. Switch to Profile Panel button
Click on this button will switch status bar to Profile panel.
(Refer to Profile Panel)
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Abbreviation
Sound effect
SF
Xear SingFX  Microphone Echo
SF
Xear SingFX  Magic Voice