The software update often mutes the mic by default. Go to Sound Settings > Input > Select MVSILICON B1 Microphone > Properties > Levels tab. Turn volume up to 80. Also, in the MVS Control Panel, uncheck "Mute Microphone."
Would you like help extracting the current firmware version from your device, or finding a compatible generic driver? mvsilicon b1 usb audio software upd
. Windows will automatically search for and install compatible drivers for the B1 USB Audio device. Device Manager Right-click the icon and select Device Manager Sound, video and game controllers Right-click "mvsilicon B1 usb audio" and select Update driver Search automatically for drivers Manual Driver Downloads The software update often mutes the mic by default