Hi Ron, I'm sorry to say I totally lack any hands-on experience with these. I sometimes hear of this or that software which makes use of this technology, I seem to remember being told about some plugin for Cubase VST something like 5 years ago already for instance, supposedly it did audio quantize automagically. Also something like a couple of years ago someone told me about another tool for Windows which has its own frontend. With it, you would use samples to actually compose melodies and the software would adjust notes. All things I've never tried myself. As for Linux, I'm absolutely clueless in all respects. However, I can well remember that, a bit to my embarrassment, our engineer once used a hardware version of a tuner in a trumpet take (that was me playing, oh well!). It was one of these module shaped affects that you use as send-return. The results were just amazing. I believe they are used all the time in studios as I've always seen them around since then. >High quality audio pitch, time stretch and quantization would all be very useful in a DAW like Ardour. I work on enough projects that require extensive editing or rebuilding that command line example applications for a library would be useful. I'm sorry I can't help but I definitely agree, the results are potentially so much higher if you can make good use of this sort of things. >Alex, are you the person who announced their intention to develop these types of libraries on the Linux Consortium mailing list? I wish I was! :-( Cheers, Alex _________________________________________________________________ Reserva desde ahora tus vacaciones en MSN Viajes. M?s c?modo, m?s barato y m?s opciones. http://www.msn.es/Viajes/