> What reverb effect is included into snd 4.1. That one sounds quite nice...
It's basically Michael McNabb's Nrev from ca. 1979 (Mus10 if I remember right), based on John Chowning's reverb, itself based on work of Moorer and Schroeder -- the all-pass/comb-filter idea. The C code is in snd-dac.c (based on clm.c), lisp code in nrev.ins etc. It was the favorite reverberator here at CCRMA during the Samson box years when convolution was out of the question, though Moorer highly recommended it. Ken Shoemake also developed some nice reverbs in those years -- I think I still have some of them.