Background audio interference
My MacBook Pro is running the latest updated Big Sur and my audio interface (RME Babyface) is registering -35db interference noise: continual buzzing and operational noise from the computer ie: scratching noises from CPU activity. All my software is up to date and I am aware that the laptop has a noisy cooling fan. I have separated all external devices to exclude earth-looping by reducing the whole set-up to just the laptop and sound-card. The problem remains with just the buzzing which is so loud that I cannot use the laptop for recording.
MacBook Pro 16″, macOS 11.3