<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Hi Kevin,<DIV>sorry for not anwering earlier - i'm abroad an not very netty at the moment.</DIV><DIV>VASP offers non-granular Fourier transformation, which enables non-windowed convolution.</DIV><DIV>Convolution translates to multiplication in the spectral domain, therefore just fourier-transform your two buffers (zero-padded to the same size) into the spectral domain, multiply the results, transform back, there you go.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>greetings,</DIV><DIV>Thomas</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR><DIV><DIV>Am 02.02.2007 um 19:42 schrieb Kevin McCoy:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite">Hello all,<BR><BR>I would like to hear how some FFT-based convolution sounds with VASP, which claims to leave fewer artifacts than the hann-windowed realtime FFT, but the included example "convolution" does not produce results for me - I load the sound files and send them to the tables via wedit but the final table (I think it's called buf_res) does not receive anything - in other words, no results. <BR><BR>I'm looking to do something like the "timbre stamp" FFT example in Pd's documentation - I've gotten so many wild and beautiful sounds from running tabread4~ based samples against each other through this, but the quality is not always very crisp. If anyone has any patches or info, let me know. <BR><BR>Thanks!<BR>Kevin<BR clear="all"><BR>-- <BR><BR><BR>++++<BR><A href="http://pocketkm.blogspot.com">http://pocketkm.blogspot.com</A><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><A href="mailto:PD-list@iem.at">PD-list@iem.at</A> mailing list</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">UNSUBSCRIBE and account-management -> <A href="http://lists.puredata.info/listinfo/pd-list">http://lists.puredata.info/listinfo/pd-list</A></DIV> </BLOCKQUOTE></DIV><BR></DIV></BODY></HTML>