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Auto-connect new JACK ports.

Project description

Auto-connect new JACK ports matching the patterns given on the command line.


A small command line utility that reacts to JACK port registrations by clients and connects them when they match one of the port pattern pairs given on the command line at startup.

The port name patterns are specified as positional arguments and are interpreted as regular expressions, where the first pattern of a pair is matched against output (readable) ports and the second pattern of a pair is matched against input (writable) ports. Matching is done against the normal port names as well as any aliases they may have (you can use jack_lsp -A to list all available ports with their aliases).

As many pattern pairs as needed can be given.


Automatically connect the first two ports of Fluidsynth to the audio outs:

jack-matchmaker "fluidsynth:l_01" "system:playback_1" \
                "fluidsynth:r_01" "system:playback_2"


jack-matchmaker is written in Python and incorporates the jacklib module taken from falkTX’s Cadence application.

It was inspired by jack-autoconnect, which basically does the same thing, but doesn’t support port aliases. It’s also written in C++, and therefore probably much faster and and less memory hungry.

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