#lang en

<<TableOfContents()>>

= Connecting additional audio devices to JACK =
 * First, make sure jackd is running. I usually start jack using qjackctl for easy UI controls
 * Next, find which device you want to connect
{{{#!highlight bash
$ pactl list | egrep 'alsa.card|alsa.card_name'

# Example output:
...
Driver: module-alsa-card.c
	alsa.card = "0"
	alsa.card_name = "HDA Intel PCH"
Driver: module-alsa-card.c
	alsa.card = "1"
	alsa.card_name = "HDA NVidia"
...
}}}
 * Then use alsa_in or alsa_out, depending on whether you want to connect an input or an output device. For example:
{{{#!highlight bash
alsa_in -d hw:3 -r 4800 -p 512

# -d Device      : use the alsa.card number you found before for this
# -r Sample Rate : alsa_in can resample when necessary
# -p Period Size : amount of frames per period
}}}
 * Then make sure you connect the new client within the JACK connections panel to one or more outputs, so the audio actually goes somewhere.

= Cool (Debian native) Jack compatible software =
|| '''Name'''             || '''Description'''                     ||
|| jack_mixer           || Pretty basic mixer, with only custom channels. ||
|| lsp-plugins    || Interesting plugin set as a whole, with many signal processing tools ||
|| lsp-plugins-latency-meter || Round-trip true latency meter ||
|| lsp-plugins-impulse-reverb || Convolution Reverb for which you can use any publicly available impulse response ||
|| meterbridge || Visual audio meters collection ||