OK, went to studio today to perform tests, troubleshooting, etc. Brought up same file I was having problems with, as described earlier. System performed as it should, no asio spikes, performance meter hung around 10% as it should for a project this size. Asio buffer at 256.
As I only had an hour or so, I decided to get a mix of the song while it was working right as I don’t know when it will screw up again.
This has been the nature of this problem all along and part of what makes it so elusive. I have a feeling that if I had kept working on the song it, it would have crept back in as in the case of the other night when it got real bad and I couldn’t even play it through without tons of spikes and dropouts. That night, I was working for at least 6-7 hours and should report that I did not try quitting Cubase and restarting which as Hungaristan reported seems to help almost as if a “reset” was performed.
I did notice that the preference for “suspend VST3 processing when no audio signals present” was checked initially.
I tried unchecking it and nothing n changed but as I said problem was not exhibiting itself in the first place.
Also, the other night when the spikes were occurring, I opened another project that contained NO VSTis and the problem persisted though not as bad. There were also many less plug-ins installed.
Since I had limited time and the problem was not showing itself, I could not perform any other tests, I’ll try again over the weekend when I have more time perhaps from the angle of trying to induce the problem if I have to.
I should also report that I don’t recall making any setup changes other than trying different buffer settings over the course of the night when the problem was showing. I did of course make edits,EQ changes, etc., as I was attempting to mix. As for the buffer settings that night, I believe they were at 1024 to start with and after trying many settings in my troubleshooting experiments must have ended up at 256 as that is what the project opened with today.
I wish I had more to report, this is frustrating but I’ll keep trying.