https://github.com/danieloneill/alsamidiremapper

A utility to filter or change MIDI notes from an input to an output using ALSA
https://github.com/danieloneill/alsamidiremapper

Last synced: 5 months ago
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A utility to filter or change MIDI notes from an input to an output using ALSA

• Host: GitHub
• URL: https://github.com/danieloneill/alsamidiremapper
• Owner: danieloneill
• License: gpl-3.0
• Created: 2025-07-01T21:08:04.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2025-08-08T19:04:34.000Z (11 months ago)
• Last Synced: 2025-08-08T21:21:24.744Z (11 months ago)
• Language: QML
• Size: 27.3 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# AlsaMidiRemapper

A utility to filter or change MIDI notes from an input to an output using ALSA

## Building

Something like:

```bash

$ git clone --depth 1 https://github.com/danieloneill/AlsaMidiRemapper.git

$ cd AlsaMidiRemapper

$ mkdir build

$ cd build

$ qmake6 ..

$ make -j32

$ ./AlsaMidiRemapper

```

## Using

Select your SOURCE MIDI device in the *From* combo box:

![from](https://github.com/user-attachments/assets/1b9e6c6b-0982-4450-b73d-2d596f64293b)

Then your DESTINATION MIDI device on the *To* combo box:

![to](https://github.com/user-attachments/assets/c9cd689c-5462-4ca8-9ac0-0ba121776798)

Toggle the *Connect* checkbox:

![connect](https://github.com/user-attachments/assets/04f32337-1594-4650-a899-987fed5fd25f)

Once connected, AlsaMidiRemapper will subscribe to all MIDI events from your *From*.

By default, all events are then proxied to the *To* MIDI device unmodified and unfiltered.

You can change the note ID transmitted for each note ID received by changing the number:

![controls](https://github.com/user-attachments/assets/10018e80-a892-4caa-934a-04177a59bb31)

Toggling the switch for a note will filter it out entirely.

To add notes to the list to filter/change, transmit the note somehow. (Hit a key on the keyboard, hit the drum/cymbal, etc.)

An indicator will illuminate on a note's row when it is triggered (unless it is disabled).