LMMS / LMMS/lmms

Some midi-libraries in VSTs does not work

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bug
Dominant language
C++
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Merged PRs (30d)
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Description

Bug Summary

It is possible to get Vestige MIDI-tables. Some are supposed to 'replace' the internal MIDI-chip, others are meant to emulate famous MIDI-Tables from hard-synths.
At least two of these does not work properly in LMMS.

  1. SYXG VST : https://veg.by/en/projects/syxg50/
  2. Edirol roland orchestra 1.03 vst
Expected behavior

The expected behaviour would be General MIDI-table-support Similar to SF2 with GeneralUser-MIDI-file
image
This works reported in VST-HOST

Actual behavior

There is only one patch available (1. Grand-piano)
There are no patch-selector or any other way to access any bank.
There are no Dial-array either (Array opens, but is empty)
image

Even though LMMS has SF2, it may be something needed to be worked at.

Affected LMMS versions

at least >= 1.2.2

Contributor guide

No contributing guide indexed for this repository

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

Start by reproducing the issue with the SYXG VST and Edirol Roland Orchestra 1.03 in LMMS, then compare their behavior with the reported VST-host behavior. Done means MIDI banks and patches are selectable and the relevant dial arrays expose their controls instead of only the Grand Piano patch.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
desktop
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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