Playback is not properly quantized (user tweak slowly shifts track)

Bug #1879654 reported by Jan Holthuis
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Mixxx
Fix Released
High
Owen Williams

Bug Description

If two tracks are playing in sync and the user tweaks the alignment a bit by nudging the jogwheels, the start of the track (either by holding CUE or hitting play) is not quantized properly anymore.

Instead of taking the user tweak into account when starting playback (or discarding it completely), the track starts quantized and slowly shifts back to the previous user tweak.

Steps to reproduce:
1. Load two tracks and enable sync and quantization for both
2. Play both tracks, and introduce user tweak on one of them (e.g. by nudging the controller jogwheel)
3. Press CUE to jump back to the main cue point on the tweaked deck
4. Press and hold CUE (or just hit play) on that deck: It does not start quantized and slowly shifts the phase until the user tweak completely.

See the attached GIF for an example.

Tags: quantize sync
Revision history for this message
Jan Holthuis (holthuis-jan) wrote :
Revision history for this message
Jan Holthuis (holthuis-jan) wrote :

Found another major issue with this:
The Hold CUE + Press Play is brokenb

1. Play Deck A
2. Press and hold CUE on deck B
3. Nudge the jogwheel of deck B (I do that often when I pressed CUE to late and want to go back a full beat)
4. Press Play on Deck B: Track suddenly goes completely out of sync

Be (be.ing)
Changed in mixxx:
importance: Undecided → High
Owen Williams (ywwg)
Changed in mixxx:
assignee: nobody → Owen Williams (ywwg)
Revision history for this message
Owen Williams (ywwg) wrote :

It seems to seek some of the way, but not all of the way. Probably a miscalculation of the user tweak.

Revision history for this message
Owen Williams (ywwg) wrote :
Changed in mixxx:
status: New → Fix Committed
Changed in mixxx:
status: Fix Committed → Fix Released
Revision history for this message
Swiftb0y (swiftb0y) wrote :

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/9984

lock status: Metadata changes locked and limited to project staff
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