[About sb16-dsp...] I've found the package "alsa-tools" that is not present in Debian ad compiled cspctl, that allows loading some dsp chip microcodes. >From the man page: wfm0001a.csp QSound decoder wfm0006a.csp A-law codec wfm0007a.csp u-law codec wfm0011a.csp IMA ADPCM codec (distorted output for IMA test files) wfm0200a.csp Creative ADPCM codec (sounds like Intel/DVI IMA ADPCM compatible) wfm0202a.csp Fast Speech 8 codec wfm0203a.csp Fast Speech 10 codec I've found these files on the very old sb16 DOS installation disks, so if someone wants them, mail me. I've installed QSound decoder and magically appeared a alsamixer control that allows me to do some 3d-stereo sorceries! But what about A-law codec and u-law codec? I've tried to load them and use sox to transform a PCM wave to A-law or u-law wave, but sox does not seem to use my beloved DSP chip! I know that a chip mounted on a 10-years-old-ISA-card will not be able to boost my pc to warp speed, but I would like to have the joy of using in the 2004 a piece of industrial antiquity! Eh eh :) Regards, Pietro. -- +------------------------------------------------+ | "Pietro" <p.alfa@xxxxxxxx> | +------------------------------------------------+