MIDI CC automation out of sync (8.12)

#1

I’m programming some MIDI CC 4 automation, but the automation is out of sync with where I’ve programmed it.

For example, having the level at 0 then putting a spike to some non-zero value then back to zero, on playback the horizontal level indicator on the automation lane spikes (and the change in the audio occurs) about a beat before the playhead reaches that part of the timeline. The automation lane is set in linear mode.

Is this a bug, something I’m doing wrong or something else?

This is with 8.12 downloaded from here on UbuntuStudio using JACK/Pipewire.

#2

Switch the automation mode to “discrete”. You don’t want interpolation.

#3

That has no effect on the automation playback occurring early though.

ETA: I notice as well that automation points aren’t drawn where I click the mouse but just over a beat further along the timeline (later). Snap is turned off. I tried re-opening the session using the ALSA backend and that made no difference either.

#4

I have no idea if this is applicable in your midi-automation case, but have you tried setting Session > Properties > Misc (Miscellaneous Options) > Default time domain to “Audio (wallclock) time” instead?

You might want to test this to see if the behavior changes.

-J

#5

Nah, that made no difference either unfortunately.

#6

Please file a bug report at tracker.ardour.org, preferably attaching a small demo session archive showing the issue. We apologize for the bug tracker requiring a separate login …

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#7

I created a new session but sadly can’t reproduce the errant behaviour in it. The session I’m having issues with is 11.0 GiB :open_mouth:

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