On Tue, 12 Jun 2007, Kjetil S. Matheussen wrote:
On Tue, 12 Jun 2007, e deleflie wrote:All, I've got a situation where I read eiether 3 or 4 channel files, then pump the channels through a LADSPA plugin. the LADSPA plugin requires 4 channels. So when I read a 3 channel file, I need to create a fourth, empty (no signal) channel. I cant seem to find the command for creating a new channel. something like this: (let ((index (open-sound name))) ((if (= (channels 0) 3) (add-channel 0) ))This is a work-around, but you can use new-sound instead of open-sound, and then use insert-sound to insert channels from your file into the sound:(open-sound name) (if (= (channels) 3) (let ((snd (new-sound (string-append name ".4-channels") (header-type) (data-format) (srate) 2))) (let loop ((ch 0)) (insert-sound name 0 ch snd) (if (< ch 3) (loop (1+ ch)))))
(Oops, warning, I didn't actually test that code.) http://ccrma.stanford.edu/software/snd/snd/extsnd.html#newsound http://ccrma.stanford.edu/software/snd/snd/extsnd.html#insertsound _______________________________________________ Cmdist mailing list [email protected] http://ccrma-mail.stanford.edu/mailman/listinfo/cmdist
