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IDProjectCategoryView StatusLast Update
0010223ardourbugspublic2026-03-09 18:09
Reportermkindred Assigned To 
PrioritynormalSeverityminorReproducibilityalways
Status newResolutionopen 
PlatformDebian GNUOSLinuxOS Version(any)
Product Version9.2 
Summary0010223: Looping hiccups when muting tracks
DescriptionI'm hearing looping audio snippets when muting tracks sent to aux buses.
Steps To ReproduceAdd aux send to track, post-fader. Mute track while playing.
Additional InformationDemo video: https://www.youtube.com/watch?v=B3DvRyqZEas
TagsNo tags attached.

Relationships

related to 0010182 new Audio Looping Glitch during Soloing whilst Playing 

Activities

GhostsonAcid

2026-03-01 20:17

reporter   ~0030024

HA! Ugh.. O___o

I believe I'm (still) experiencing a *version* of this as well.
And the key ingredient between us is our use of *Aux Sends*.
So I would be VERY surprised if this issue is NOT related to this one I posted about earlier:
https://tracker.ardour.org/view.php?id=10182

I even made a video about it as well:
https://odysee.com/@icterine:a/Ardour-9---Audio-Looping-Glitch-during-Soloing-whilst-Playing:a

...
I forgot to reopen my report, so I'll do so now.
Thanks, @mkindred for bringing attention to this! : )

-J

mkindred

2026-03-01 20:36

reporter   ~0030026

As soon as I saw your issue move to the top, I realized it's the same as mine. I experience this with solo and with mute.

mkindred

2026-03-01 20:58

reporter   ~0030027

btw my buffer is set to 4096, and the frequency on my glitches sound like they're half as fast as yours at 2048.

mkindred

2026-03-09 15:51

reporter   ~0030077

A new video replicating the issue with fresh session, no aux sends: https://youtu.be/cLnUTJe6x-0

GhostsonAcid

2026-03-09 17:48

reporter   ~0030080

@mkindred "btw my buffer is set to 4096, and the frequency on my glitches sound like they're half as fast as yours at 2048."

I meant to mention that this was a very good observation on your part. And you are almost certainly 100% correct.

But to be sure, I converted the audio from your first video to an mp3, and compared it to my original video's audio.
In the pictures, you can see that my glitch is *precisely* 2048 samples, which is equal to my buffer size.
But, oddly, yours was something like 3762 samples...

Well, I suspected this just has to do with some sample-rate conversion issue either on your-end or my-end, and sure enough:
44,100/48,000 = 0.91875
then
0.91875 * 4096 = 3763.2 ! O___O

TL;DR:
So yes, this glitch-loop is almost certainly related to our buffer sizes.

...
(PS: Did Youtube convert your 48,000 audio/video to 44,100? : P
How did this discrepancy arise? O___o Because the audio (from your video) I have is 1:17 long, -just the same as your YouTube video length.
So I suspect the conversion issue might be on your-end(?), but who knows...)

mkindred

2026-03-09 18:09

reporter   ~0030082

Hmm, not sure if yt might have converted my audio. (I've just begun researching upload guidelines and currently tweaking my kdenlive rendering settings accordingly.)

In the first video, I exported to AAC 16/48k/169kbps. Second video was ALAC 24/48k.

Issue History

Date Modified Username Field Change
2026-03-01 19:56 mkindred New Issue
2026-03-01 20:17 GhostsonAcid Note Added: 0030024
2026-03-01 20:36 mkindred Note Added: 0030026
2026-03-01 20:58 mkindred Note Added: 0030027
2026-03-09 14:50 x42 Relationship added related to 0010182
2026-03-09 15:51 mkindred Note Added: 0030077
2026-03-09 17:48 GhostsonAcid Note Added: 0030080
2026-03-09 17:48 GhostsonAcid File Added: Screen Shot 2026-03-09 at 7.28.47 PM.png
2026-03-09 17:48 GhostsonAcid File Added: Screen Shot 2026-03-09 at 7.31.55 PM.png
2026-03-09 18:09 mkindred Note Added: 0030082