7.1 usb sound card only outputs stereo in kodi but with alsa it can play 7.1. - General Support - LibreELEC Forum
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USB Sound Card, VENTION USB Audio Adapter Stereo External Sound Card with 3.5mm Headphone and Microphone Jack for Windows, MAC, Linux, PC,Laptop, Desktops,PS5 : Electronics
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sound - How to list/access all the available audio input and output ports/channels of a USB soundcard from a particular PC - Ask Ubuntu
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