The Official Sequential/Oberheim Forum
SEQUENTIAL/DSI => Prophet => Prophet 12 => Topic started by: prestonj on May 08, 2018, 07:03:48 AM
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Is anyone else noticing distortion in the delay lines? Sounds a bit like they're overloading. I've noticed it especially with simple patches (e.g. single osc square wave) that have a short (0) attack. The start of the delayed audio repeat always sounds snappier/clickier than the input sound (like when you have an abrupt DC shift in a waveform).
I know that's a pretty vague description - I'll have to grab an audio capture later tonight. I modified 'VulcanizedRubber' a bunch and the delay sound is really bugging me.
I've fiddled with the patch volume and the level/feedback of the delay - doesn't seem to make a difference. All delays seem to exhibit the same distortion, and it seems that turning up the drive makes it more obvious.
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Hi,
they have the option to set the delay to low to avoid this, 4th softkey in delay page.
Hope this helps,
Martin
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Actually I hear it whether the delay is set to "high" or "low".
Here's a quick audio example of the click sound I noticed on the delay repeats. I'll try grabbing a recording of the more distortion-like sound later this evening.
https://soundcloud.com/peeja/clickydelay/s-ZE8DT
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Here's another example with a modified 'VulcanizedRubber' patch. Still using just a single delay line set to "low". I tried using patch volumes as low as 70-80 and still get that weird click/distortion sound.
https://soundcloud.com/peeja/clickydelay2/s-MgquC
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Just to circle around, I spoke with DSI support (Carson Day) and he was able to confirm that what I'm hearing happens on his test P12 (so it's not just a problem with my hardware/hearing).
He's added the item to the P12 bug list, to be reviewed at some point in the future.
The workaround at this point is to add a slight attack to the VCA envelope. Not a great solution for some situations but that's where things stand.