alsa-plugin-jack (JACK plugin for ALSA) This is the JACK audio plugin for ALSA. It allows audio to be routed to and from ALSA applications that aren't JACK-aware. For more information, see http://alsa.opensrc.org/Jack_(plugin) This plugin is included in the alsa-plugins source, but is not included in Slackware's alsa-plugins package because Slackware doesn't ship with jack.