LMMS / LMMS/lmms

Loading mdaPiano causes audio spike

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bug upstream
Dominant language
C++
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Description

#### Steps to reproduce

- Open new project
- Add VeSTige
- Load mdaPiano via browser

Master fader briefly hits red, as opposed to the expected complete silence. By itself this sounds like a click at worst, silence at best. Depending on the effects it runs through it can become loud and sustained (I accidentally ran it through Ambience reverb, which was very unpleasant).

#### Affected LMMS versions

1.2 and 1.3 alpha.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the spike with a new project by adding VeSTige and loading mdaPiano through the browser, then trace the plugin-loading and audio initialization path. Done means the master fader remains silent during loading in LMMS 1.2 and 1.3 alpha, without an audible spike or sustained output through effects.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
audio-video-rtc
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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