Audio interrupts/glitches when using XY

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I just purchased the oldskool patch set and started playing with the XY controls which appear to have been done very thoughtfully in this set. However, when I move the controls, the audio doesn't change smoothly but gets quick interruptions/glitches even when I move slowly.

I am operating on a 3.3GHz iMac with nothing else running and checking the CPU work load it doesn't seem to max out at all. My DAC (presonus fireproject) hasn't given me problems like this before either. Zebra runs from within Reaper 4.x. Could Reaper be the issue here? Any handy pointers for me to start troubleshooting this rather annoying problem?

Thanks!

joost

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Which patch?

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bmrzycki wrote:Which patch?
All that I tried, starting with ambient-complex, ambient-granular etc. With a more simple patch such as Fripper Cronic I have the glitches also though they appear less frequent.

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jooster wrote:
bmrzycki wrote:Which patch?
All that I tried, starting with ambient-complex, ambient-granular etc. With a more simple patch such as Fripper Cronic I have the glitches also though they appear less frequent.
Just tried Oldskool-> Complex -> MK Backwarder+, MK Singularity+. Neither produced any crackling or undesirable artifacts when moving any of the 4 XY pads. I used my mouse to move them. I saw around 4% CPU usage for 1 note held.

Reaper 4.13/x64, Windows 7 64-bit, Zebra 2.5.2 64-bit.

You might want to double check that none of your CPU cores are spiking and your volume isn't going over 0db. Otherwise I cannot reproduce here, sorry.

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Does the same thing happen with other presets, besides the Oldskool set, using the XY controls?

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bmrzycki wrote:Just tried Oldskool-> Complex -> MK Backwarder+, MK Singularity+. Neither produced any crackling or undesirable artifacts when moving any of the 4 XY pads. I used my mouse to move them. I saw around 4% CPU usage for 1 note held.

Reaper 4.13/x64, Windows 7 64-bit, Zebra 2.5.2 64-bit.

You might want to double check that none of your CPU cores are spiking and your volume isn't going over 0db. Otherwise I cannot reproduce here, sorry.
I always keep an eye on the VU meters and made sure to stay well below them. However, think I found the solution setting Reaper's preference "Allow live FX multiprocessing" to "on" and using 4 processors. I guess the CPU load meter is just waay to under sampled to give one a good idea of the peak load at the time. My CPU meter didn't do much more than 2-3% on average, but the peak must have been much higher.

Cool, live is good again ;-)

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Yep, I agree. Reaper's CPU meter is less-than-truthful. I get crackles when I see anything higher than 9% there. Glad you found a workaround!

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