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I'm trying to play with fluxus, but I need to find out what parameters I need to send with this function:

(start-audio "alsa_pcm:capture_1" 1024 44100)

This is that help say:

Starts up the audio with the specified settings, you'll 
need to call this first, or put it into $HOME/.fluxus.scm 
to call it automatically at startup. Make the jack port 
name an empty string and it won't try to connect to 
anything for you. You can use qjackctrl or equivelent 
to do the connection manually. Fluxus reads a single 
mono source. The fourth parameter let you precise the 
fluxus jack portname, usefull for fluxus multi-instance.
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