I am experiencing a strange issue on my Win 7 64bit machine where there is about a half second interruption to any audio source which occurs exactly every minute, suggesting maybe some service is polling/checking regularly. I've been running a stopwatch for about an hour now and whenever a minute passes, this short gap can be heard.
The machine is relatively new, and shouldn't struggle to code with running applications, soundcard is external (Edirol UA-25EX). There didn't used to be issue with this, but unfortunately, I can't seem to work out what I might have changed to cause this.
Things to note:
- The sound card works perfectly well when booted into Linux (i.e. pretty unlikely to be a hardware issue.)
- There are no spikes in the CPU usage graph to correspond to these gaps.
- Tried disabling the Windows Search service, but to no effect.
- Tried disabling the realtime scanning component of Microsoft Security Essentials (the only AV on the machine), but to no effect.
I'm running out of ideas for things to try here, LatencyMon looks promising but I'm not sure how to use / interpret the results. Any help greatly appreciated, let me know if you need more information.
