View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0001808 | OpenMPT | General | public | 2024-08-20 13:20 | 2024-10-26 18:41 |
| Reporter | Saga Musix | Assigned To | Saga Musix | ||
| Priority | normal | Severity | feature | Reproducibility | N/A |
| Status | resolved | Resolution | fixed | ||
| Target Version | OpenMPT 1.32 / libopenmpt 0.8 (goals) | Fixed in Version | OpenMPT 1.32 / libopenmpt 0.8 (goals) | ||
| Summary | 0001808: Use Signalsmith Stretch for pitch shifting and time stretching | ||||
| Description | https://signalsmith-audio.co.uk/writing/2023/stretch-design/ We currently use smbPitchShift for pitch shifting and Soundtouch for time stretching; smbPitchShift is old and showing its age, while Soundtouch is purely working in the time domain as far as I know, leading to unpleasant (most of the time, anyway) artifacts when stretching. Signalsmith Stretch can do both pitch-shifting and time-stretching and seems to be comparable to Rubberband in terms of quality, while being MIT-licensed (Rubberband is GPL + commercial). Since Soundtouch's time domain based approach can be used to approximate "MPC-style" time stretching effects, a replacement for that should probably be offered if we switch to Signalsmith Stretch. An alternative MPC-style implementation could be much simpler than what Soundtouch offers, though. | ||||
| Tags | No tags attached. | ||||
| Has the bug occurred in previous versions? | |||||
| Tested code revision (in case you know it) | |||||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2024-08-20 13:20 | Saga Musix | New Issue | |
| 2024-09-08 21:32 | Saga Musix | Assigned To | => Saga Musix |
| 2024-09-08 21:32 | Saga Musix | Status | new => assigned |
| 2024-09-08 21:32 | Saga Musix | Target Version | => OpenMPT 1.32 / libopenmpt 0.8 (goals) |
| 2024-09-18 21:27 | Saga Musix | Note Added: 0006052 | |
| 2024-09-18 21:28 | Saga Musix | Status | assigned => resolved |
| 2024-09-18 21:28 | Saga Musix | Resolution | open => fixed |
| 2024-09-18 21:28 | Saga Musix | Fixed in Version | => OpenMPT 1.32 / libopenmpt 0.8 (goals) |
| 2024-09-18 21:28 | Saga Musix | Summary | Evaluate Signalsmith Stretch => Use Signalsmith Stretch for pitch shifting and time stretching |
