jack_connect

TLDR

Connect output to input

$ jack_connect [system:capture_1] [app:input_1]

Connect application ports

$ jack_connect [app1:output] [app2:input]

List all ports

$ jack_lsp

List with connections

$ jack_lsp -c

Disconnect ports

$ jack_disconnect [source] [destination]

SYNOPSIS

jack_connect sourceport destinationport
jack_disconnect sourceport destinationport

jack_connect creates audio connections between JACK ports. JACK (JACK Audio Connection Kit) provides low-latency audio routing between applications.
The command links output ports to input ports, enabling audio to flow between applications. Use jack_lsp to list available ports and jack_disconnect to remove connections.

PARAMETERS

sourceport_

Output port (client:port format).

destinationport_

Input port (client:port format).

EXAMPLES

$ # List available ports
jack_lsp

# Connect microphone to recorder
jack_connect system:capture_1 ardour:audio_in_1

# Connect synth to speakers
jack_connect yoshimi:output_L system:playback_1
jack_connect yoshimi:output_R system:playback_2

CAVEATS

Requires running JACK server. Port names include client name. Connections don't persist across restarts. Consider QjackCtl for GUI management.

HISTORY

JACK was created by Paul Davis and others, starting in 2002. It provides professional-grade audio routing on Linux and macOS, used extensively in audio production.