MidiGraph is a MIDI graph inspector for GNU/Linux. It is a tool realized for developers and MIDI "power" users who need to know a bit more about the MIDI clients/ports and connections available.
Usually one would use "simpler" tools, such as aplaymidi/arecordmidi with the "-l" flag, or patchbays like Patchage or QJackCtl. MidiGraph shows much more information, which can be useful to better understand the specification of every MIDI port and connection and eventually debug external programs.
For instance, it will show every MIDI client and port available to ALSA, even system and hidden ones; The connections (ALSA's "subscriptions") are graphically shown as actual connections between ports, with detailed information for each one of them.
- Python 2.7
- PyQt4 >= 4.11.1
- pyalsa
There is not an installation procedure yet, just run the script in the main directory:
$ ./MidiGraphThe top panel shows the full MIDI graph, allowing filtering between hardware clients (sound cards, USB MIDI devices) and software clients (sequencers, virtual instruments). By default the system client and hidden ports are not shown, use the checkboxes to display them. The port type and capability panels are hidden on start up, just click on their relative label to toggle the view.
- JACK support.
- create/delete connections
- export client/port specifications to file
Sometimes ALSA clients do not report their actual name on startup and they may show up in the graph as "Client-".