FYI: libadlmidi-js

[tgies]

Hello, this is to notify you that I have published libadlmidi-js/libadlmidi-js as a convenient wrapper for JavaScript consumers to get an Emscripten build of libADLMIDI, with some browser and/or Node.js integration stuff like running in an AudioWorklet already done.

Builds are produced in GitHub Actions and run through a comprehensive test suite.

https://libadlmidi-js.github.io has some quick and dirty working examples, such as a patch editor, Web MIDI, etc.

This is an informational issue only, feel free to close. I am open to more direct collaboration if desired. Thanks for your work on libADLMIDI.

[Wohlstand]

Hello!

Look an interesting addition, you would like to bind full API of the library, and additionally you can handle the libOPNMIDI thing, my second project that is pretty similar to libADLMIDI but it uses OPN2 and OPNA chips instead of OPL2/OPL3.

And, just making few tests of your demo, and I found bugs on your thing:

1. No files can be open using MIDI player, just a function failure

2. Titles of banks seems wrong, the 72 is DMXOPL by Sneakernets, the 58 is "The Fat Man" variant used in Windows 9x, and the 0 is the default Fat Man of the AIL library kit.

The thing that I got working is "Web MIDI" thing, I successfully passed MIDI stream using pmidi thing.

[Wohlstand]

P.S. The "Web MIDI" thing works just fine in Firefox, I using 147.0, and it just works. I don't like use of Chromium-based browsers, they are messy in several aspects, and Firefox and its derivatives like Pale Moon, Waterfox, etc. are better in several aspects.

[tgies]

Thanks, I fixed that MIDI issue (and added the full proper public API for MIDI playback) and changed it to retrieve the bank list at runtime instead of my hastily entered and incorrect placeholders. Covering the full public API is planned.

I will look at libOPNMIDI and consider wrapping that as well. Thanks!

[Wohlstand]

Just a case: Firefox works too, I confirm that, I work on Linux Mint.

[Wohlstand]

Just a working demo (I encoded it with a dirty quality to fit into 10 MB):

2026-01-24_05-55-18-rekod-discord.mp4

To stream the MIDI, I used the pmidi program from the kit of ALSA with explicit selection of "WebMIDI" MIDI output device that is listened by the browser.

P.S. the melody used for this demo:

Song7-arranged.mid.zip

[Wohlstand]

Another notice: you could add the gaining factor that will be multiplied with every streaming sample, this is required to adjust the general volume since it might sound too quite, or oppositely too loud, and it should be adjustable.

[Wohlstand]

I thinking to turn this into discussion, so, you and other people who wants to showcase their libADLMIDI based creations, can do that freely.