Jack toolkit metronome
jack_metro [ -n name ] [ -f hz ] [ -D msecs ] [-a % ] [ -d % ] -b bpm
jack_metro is a simple metronome for JACK. It generates a synthetic "tick" sound for every beat. Note that is does not connect its output port by default - to hear the sound it makes you must connect them using some other tool.
-n, --name
Specify a name for this instance of the metronome.
-f, --frequency Hz
Define the frequency of the "tick" in Hz.
-D, --duration msecs
Define the duration of the "tick" in milliseconds.
-a, --attack %-age
Define the duration of the attack phase of the "tick" as a percentage of the duration.
-d, --decay %-age
Define the duration of the decay phase of the "tick" as a percentage of the duration.
--b, --bpm bpm
Define the number of beats per minute.
Anthony Van Groningen