| Summary: | [Feature] Add dynamic range compressor audio filter | ||
|---|---|---|---|
| Product: | [Applications] Haruna | Reporter: | Marcus Sundman <sundman> |
| Component: | generic | Assignee: | george fb <georgefb899> |
| Status: | REPORTED --- | ||
| Severity: | wishlist | CC: | beavailable, sundman |
| Priority: | NOR | ||
| Version First Reported In: | 0.10.3 | ||
| Target Milestone: | --- | ||
| Platform: | Kubuntu | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
| Attachments: | Dedynamicizer-curve | ||
There is plenty of existing code for doing this, since most players have it, so the code can probably be copied from some other project, such as vlc. Since haruna already uses mpv, you can simply add the option to specify custom audio (and video) filters. E.g., dynamic range compression can be performed with an mpv audio filter like: lavfi=[loudnorm=I=-14.0:TP=-1.5:LRA=8.0] |
Created attachment 159726 [details] Dedynamicizer-curve SUMMARY In many environments (e.g. noisy) a video with wide dynamic range audio is impossible to listen to; either silent parts are too silent or loud parts get too loud. A dynamic range compressor (or a compressor/limiter) works by boosting low volume and/or lowering high volume. This way you can hear a whisper, and still not damage your hearing by a gunshot in the film. This is one of the most useful filters a movie player can have. It would be nice if the "high volume lowering" would actually keep the peaks where they are, but instead boost everything else, except very low volume. Like in the attached picture of a top-biased S-curve. The filter should have at least one setting: the amount of boosting to do. (Other minor things, like attack, release, and window size, could be hidden as long as they're at least somewhat sensible.) SOFTWARE/OS VERSIONS Linux/KDE Plasma: Kubuntu 23.04 KDE Plasma Version: 5.27.4 KDE Frameworks Version: 5.104.0 Qt Version: 5.15.8