View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0001472||OpenMPT||Playback Compatibility||public||2021-06-12 20:07||2021-06-22 18:26|
|Reporter||deus-ex||Assigned To||Saga Musix|
|Product Version||OpenMPT 1.29.10.00 / libopenmpt 0.5.9 (upgrade first)|
|Target Version||OpenMPT 1.29.11.00 / libopenmpt 0.5.10 (current stable)||Fixed in Version||OpenMPT 1.29.11.00 / libopenmpt 0.5.10 (current stable)|
|Summary||0001472: ProTracker sample loop length quirk should not be applied to Soul-O-M.mod|
Playing back the module Soul-O-M.mod by Purple Motion I noticed some playback inaccuracies.
Order 0, Channel 2, Row 28: The recreation of the sample on channel two sounds completely off.
|Steps To Reproduce|
For playback reference, I used Schism Tracker 20190801 64-bit (released 2019-08-05).
|Tags||No tags attached.|
|Has the bug occurred in previous versions?||I also tried with an old version of OpenMPT that I still had available, v1.28.00.15.100004 from 25.03.2018. Same playback issues there.|
|Tested code revision (in case you know it)|
The problem here is that this module contains several samples with incorrect loop information (the loop end is way past the sample length). OpenMPT treats this similar to how ProTracker does in M.K. modules because there are other modules (e.g. MOD.shorttune2) which exploit this bug, so just trimming the loop for Soul-O-Matic would break those other modules. Schism Tracker doesn't implement this ProTracker quirk so the module sound "correct" there. I'll somehow have to find a way that would allow both quirks to be emulated correctly.
r15355 fixes this by not applying this quirk to modules that have a default volume of 64 in empty sample slots (which is one way of fingerprinting Scream Tracker 3 and some other trackers that are not ProTracker).
|2021-06-12 20:07||deus-ex||New Issue|
|2021-06-12 20:28||Saga Musix||Assigned To||=> Saga Musix|
|2021-06-12 20:28||Saga Musix||Status||new => assigned|
|2021-06-12 20:30||Saga Musix||Note Added: 0004803|
|2021-06-12 20:48||Saga Musix||Note Added: 0004804|
|2021-06-12 20:48||Saga Musix||Status||assigned => resolved|
|2021-06-12 20:48||Saga Musix||Resolution||open => fixed|
|2021-06-12 20:48||Saga Musix||Fixed in Version||=> OpenMPT 1.29.11.00 / libopenmpt 0.5.10 (current stable)|
|2021-06-12 20:48||Saga Musix||Target Version||=> OpenMPT 1.29.11.00 / libopenmpt 0.5.10 (current stable)|
|2021-06-22 18:26||Saga Musix||Summary||MOD playpack issue => ProTracker sample loop length quirk should not be applied to Soul-O-M.mod|