Just a wild guess: does your USB interface have native support for the sample rate at which you are recording / playing back? If not, the CPU spike could be down to software transcoding to / from the device's configured rate.
Yes, it supports the rates used. The same USB device , same OS, and settings (actual harddrive) present no CPU spikes, on a different machine.
There may be some unforeseen factor, as always is possible; but it certainly seems that it is specific to this machine.
Statistics: Posted by 533k3R — Sat Oct 19, 2024 5:10 am