Due to recent updates from Apple, you now have to give permission for Audacity to use the microphone (See: https://forum.audacityteam.org/t/no-signal-from-usb-turntable-mojave-solved/50763/6)
Due to recent updates from Apple, you now have to give permission for Audacity to use the microphone (See: https://forum.audacityteam.org/t/no-signal-from-usb-turntable-mojave-solved/50763/6)