Hi!
   There is convolve and ftconv. If you want to do more realtime stuff on 
Linux, your answer would probably be jconv or the other developing GUIs to 
that by Fons Adriaensen.
   I think it's no difference in quality, just in the realtime-factor 
department.
   The most important thing is you finding the right impuse-responses for your 
reverb. If you don't already have them, go here:
http://linux-sound.org
   There's a point about csound and there youshould find sites with IRs. I took 
a good deal of them and there are nice ones among them.
   HTH.
   Kindest regards
            Julien

--------
Music was my first love and it will be my last (John Miles)

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