Screeching sound when I save a sample on Octatrack

I’ve encountered an unusual problem.

Every time I save copy of a sample while playing my project, I get very loud audio glitches: digital screeches, cracks, interference.

This only seems to happen in one project. I’ve never seen it before. I know my way around the OT pretty well. I’ve tried rebooting. I’ve tried reformatting then repopulating the CF card. I’ve updated from 1.40A to 1.40B firmware.

I can’t think that the project does anything very unusual, it’s pretty similar to lots of my other work. A few long sample chains in static tracks. A few 128 beat samples recorded in on flex, played on a mix of flex and static machines without LFOs doing anything exotic.

Has anyone else ever had this? Do I need to worry? Is my CF card dying? (Sandisk Extreme 64gb from Amazon, I think I’ve misplaced the original 32gb one).

Never encountered this personally; I mostly use FLEX.

Is the sample played back while you save it as a copy ?
AFAIK saving cuts the sound unfortunately.

I didn’t know “screeching” term.
Audio example?

Yes the static sample is being played while I save a copy. I’ve never seen it be an issue before and I’ve tested saving a sample in other projects during static playback and they don’t glitch. I’ll try to grab a recording and post.

But maybe it’s just expected behaviour that saving a static sample while playing a static sample causes playback problems?

I am curious to know why to you need a copy of it…

2 Likes

Hi there. I’m a new Octatrack user and I think I’ve run into the same problem. I recorded something and saved it to a static track during playback and then got a massive glitchy/digital audio spike in the sample. Did you ever find a solution or did you figure out what caused the issue by chance?

Thanks for your help!

I have had this happen to me when recording long(ish) audio. Basically when the file gets saved from the Flex buffer to the CF Card, a glitch happens in the process. It’s happened enough that I actually have a habit of scrolling through the saved files waveform to see if there is a spike. If there is I just save again and it’s usually ok on the second save. They are easy to spot as they look like a solid block within the waveform.

Also, I haven’t tested this enough, but I’ve started to stop playback when I save a long take from Flex. I thought that it could be a bandwidth issue where if I have a few static tracks playing back at the same time the Flex buffer is being written to the CF Card a glitch could happen.

3 Likes

Ive had this when triggering freshly recorded audio, specifically in slice mode iirc

what always seems to snap it back to working is opening the audio editor/rec edit and using Func+Yes to play back from there.