[PD] Jack and PD plus another question

Larry Troxler lt at westnet.com
Mon Jan 26 02:04:06 CET 2004


On Sunday 25 January 2004 17:11, thewade wrote:
> I dont know much about pd and jack, but I was told that if you run jackd as
> root then you have to run pd as root as well, and same for non-root, but it
> seems redundant to run pd in realtime and jack in realtime. if pd is
> connected tojack and jack is running in realtime, then shouldnt pd be
> inrealtime as well?
>

If I understand correctly, PD is not a textbook Jack application - it doesn't 
simply register a callback function that Jack can call. Instead, it has its 
own main loop that processes the audio stuff, and that's why it needs to run 
RT.  I suppose that there is a Jack callback, but maybe it only copies 
buffers from PD to Jack (or something like that). Hopefully Miller or someone 
else will correct me if I'm off base on this.

Larry





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