Muted tracks, unlike muted patterns, do redundant processing when played
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- Dominant language
- C++
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Description
New issue, this time with Zyn.
Depending on how many Unison voices the preset has + the decay, Zyn will eat alot of cpu, especially when layering 3 or more notes in a single loop. This may not be just Zyn, but its the one ive noticed this issue most.
The issue is, whenever i mute a zyn instrument, the cpu still spikes. if i mute the actual loop, the cpu stops spiking. I'm assuming thats because LMMS keeps processing audio even when a instrument is muted?
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- Read the whole issue, then the project's contributing guide.
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Research direction
No source file, test, or entry point is identified. Reproduce the behavior with Zyn presets that use multiple Unison voices and varying decay, comparing a muted instrument with a muted loop; trace the mute path and document where processing continues. Done means muted tracks no longer cause the reported CPU spikes and the behavior has regression coverage.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- audio-video-rtc, performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100