HD Audio AS372 - Master Volume and Mute Control

HD 7.1 USB AUDIO V3.0
Master Volume / Mute & Un-Mute
 Volume Adjusting
You can increase or decrease the volume of all output device
(Speaker, Headphone and SPDIF-Out etc.) by this master volume
bar ( ).
 Mute/ Un-Mute the volume
You can mute/un-mute volume of default output device by the
mute ( ) or Un-mute button ( ).
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