I have been perplexed by an issue for years (since release of 8.5) of a digital high pitched screeching sound that seems to phase in and out during playback. Happens frequently during first playback of opening a project but is not limited to that. If it doesn’t happen at that moment, at some point it will "roll in and roll out"during playback. The also happens during record, and if it does happen during record, the system will record the problem. If you hit stop while the problem is occurring, the problem will halt immediately and pick up when you hit play again until the problem disappears a few seconds later. It may appear again about once every 5 minutes or so.
The troubleshooting I have done to determine it’s Cubase:
The issue happens on any amount of tracks and effects, the CPU and disk meters are not peeking. I tried new Projects, 24 bit/48k, nothing major I am doing, max 28 to 30 audio tracks.
Changed PC’s, full upgrade.
Changed IO from Presonus Studio live 16 channel FW to a Tascam 24 channel USB interface.
Switched mixer/interface from using onboard USB to separate PCIe card
Changed latency, happens on the highest latency settings and can get 32ms without normal latency noise.
upgraded system bios
Turned off C steps, turbo boost and hyperthreading CPU is locked at 4GHz
Asio gaurd on off, no difference
Windows is fully optimized, cubase power settings, nothing sleeps, windows update is disabled fully (removing windows medic and specifying a dummy location for windows updates.
Bojour is uninstalled, java updater removed
Wifi card and bluetooth disabled
Tried syncing externally to the mixer
Tried plugging the computer into the studio power conditioner with the mixer to eliminate electrical phasing, and does not make a difference.
upgraded windows of course throughout the years.
Two different nvidia cards were used, an nvidia 650 and 960 card with updated drivers both saw the issue. Removed any conflicting drivers
I have a high end (for its day when Cubase 8.5 came out) PC quad core i7 with four physical 4GHz cores on Windows 1809 updated. It has 32GB RAM. SSD for system drive, moved projects to a secondary SSD in troubleshooting.
This problem doesn’t happen in Windows, or in any other audio software I use.
Only thing I didn’t do is upgrade to Cubase 10, which may or may not solve the problem. Not worth the risk.
Anyone know here what I might be missing? It seems like it’s almost like it’s digital phasing in cubase in the way the noise comes and goes. Like it is out of cycle.
I’m struggling and any help would be appreciated.