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Lumbeat Drum apps suddenly start using 35% DSP?
Running on an iPad M3....it also jumps randomly from that 35% to 80% and maxxed out. It is the only app being used in the session.
And even when nothing is on, the DSP usage varies from about 12% then jumps back up to around 32%, remember, NOTHING is running! Remove the drum app, it drops to 0
Comments
Are you using the AUv3 plug-in, or a stand-alone Lumbeat app?
What is your iPadOS version? Suspecting possible change with iPadOS 26.
Is it actually overloading the cpu? These %s can be misleading. When there is little CPU demand the OS throttles down the CPU speed. When that happens, the CPU % will look high until there is more demand and the OS increase the CPU speed.
^ this.
I wouldn't worry about it unless it's causing audio breakup.
iOS 18.x using the IAA in AUM
Yeah, I was sorta thinking along those lines when it started happening, but even when I start playing the other instruments in the session, the behavior continues. When I remove the Lumbeat app, usage drops to around 12% for the two or three instruments being used.
It is weird and I have never noticed it before. Only noticed it this morning because of the flashing red 100% mark!
What buffer size are you using?
64, but it is an M3 chip, it should be able to handle it! In any case it seems to have settled down now. Maybe Apple had something going on in the background. Don't know what though as auto updates are off as are a lot of other OS things.
I second that, commonest cause for ‘sudden’ dsp overload, buffer change to deal with latency whilst recording audio
not recording, just playing!
Sounds like it's gone now though?
yes it has thanks wim - I'll still be keeping an eye on it though!