" Then I can feed one "card" through LADSPA giving one mono signal, and the other card though LADSPA giving a second mono signal, and then I can hopefully route the two mono signals out the left and right speakers giving me a stereo signal that has passed through LADSPA. "
- well, it might be not a good idea from acoustics point of view. For stereo sound reproduction through speakers it is absolutely crucial to have consistent and STABLE phase relationship between the channels. Data is written to the two cards at different moments of time - because they are two cards, not one card. And the time difference is random - it depends on PCI activity, interrupts, memory refresh, etc. So, unless you have HW means to synchronize sound in the two cards, the results might be bad anyway. Regards, Sergei. On Fri, 30 Dec 2005 12:04:44 +1000 Adam Nielsen <[EMAIL PROTECTED]> wrote: > > What are you trying to do? > > I'm still trying to get stereo output when passing the sound through a > LADSPA plugin (which in the latest version of ALSA converts any incoming > stereo source into mono.) My current idea is to create a multi-card > device, with the two "combined sound cards" being both on the same > physical card. Then I can feed one "card" through LADSPA giving one > mono signal, and the other card though LADSPA giving a second mono > signal, and then I can hopefully route the two mono signals out the left > and right speakers giving me a stereo signal that has passed through > LADSPA. > > It just seems that if you connect things in a certain way (particularly > with the ALSA ladspa plugin) I get all these weird assertion failures - > so I was hoping that if I knew why they were happening it might help me > figure out a way around them. > > Thanks, > Adam. > > > ------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. Do you grep through log files > for problems? Stop! Download the new AJAX search engine that makes > searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! > http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click > _______________________________________________ > Alsa-user mailing list > Alsa-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/alsa-user > ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
