Topic: Fireface UFX III (3) - pulsing/beeping noises - unable to trace source
Writing this post to traceback the issue.
I was doing some casual listening on headphones (through a headphone amp routed out of AN5/6) using Apple Music running on macOS 13.5.2 (Ventura) arm64 and:
- RME driver version DK408-2,
- RME SW Version 4, and
- RME TotalMix FX version 1.83 macOS (1).
HW is a MacBook Pro 16" 2021 running an M1 Pro chip.
A set of simple, short, and regular pulses started coming out of software out 1-2 - presumably off the OS, but I have never heard these sounds in my year owning this computer. The pulses were pretty much staccato in length (~30ms) and occurred at about 350-500ms intervals. Each pulse has two fundamentals in the midrange - G and C, zero to one octaves below middle C.
The routing was as follows: OS -> RME SW AN 1-2 -> RME OUT AN 5-6 -> headphone amp -> headphones. Unsurprisingly, any outputs routed from RME SW AN 1-2 also had the pulses in them.
The pulses only happen when I play systemwide audio and stop when I stop playing any audio.
Disconnecting and reconnecting the UFX III temporarily solved the issue; however, I am uncertain that the pulses will never be back again. I am unable to reproduce the issue at will and will attempt to record the pulses should they crop up again. RME support is not available in my country.