onsdagen den 11 augusti 2004 22.12 skrev Iv?n Almada: > thanx! this entire patching system is wicked! im using > qjackctl... > > you could never expect to route midi and audio events > this way with standard win apps even with rewire... > > this is awesome... :-) life is good. > > other thing is that i bought the sb audigy just for > using it with the asio drivers, but with jack you > dont need that right? would a standart cheapo > soundcard work this way? Pretty much, it depends on the driver quality and card quality, generally the cards are capable of it though. > with the same latency? (using > the planet ccrma stuff ) im asking this because one > friend of mine wants to buy a soundcard just to do the > same thing, play with softsynths realtime (low > latency) from the midi keyboard... maybe a sb live > would do the job? an sb-live would not be a problem. There was a bug in alsa earlier that prevented you to go below 512x2 in duplex (though only playback is needed in this configuration so it's a non issue, good to know though), that should be fixed by now. 512x2 is perfectly usable for me though.. /Robert > > thanx for the fast - straight-forward answer > > > > > > > --- Chris Cannam <cannam@xxxxxxxxxxxxxxxxxxxxx> > > escribi?: > > The generic answer to "how do I add effects to this > > JACK app that > > doesn't immediately appear to support them?" is to > > use jack-rack, > > which is a very nice standalone JACK effects rack, > > hosting LADSPA > > plugins. Run it up and then connect the output of > > your other JACK > > app (Specimen in this case) into jack-rack using the > > qjackctl audio > > connection manager. > > > > (I can't remember offhand whether Specimen always > > outputs to JACK or > > whether it also has direct ALSA output. You will > > obviously need to > > have it outputting to JACK and have jackd running > > [via qjackctl for > > example] to do this.) > > > > > how is the > > > audio routed from specimen back into the midi host > > > mixer (it displays audio in a channel called > > > > rec... ) > > > > > but it has no slots for plug ins... > > > > In this case the answer is that the audio is _not_ > > routed back into > > the midi host. The only reason you see it on the > > Rec meter in > > Rosegarden is because Rosegarden's record input is > > connected to the > > soundcard capture channel, and that is receiving the > > same audio as is > > being output to the speakers from Specimen. Even if > > you could apply > > effects at that point in Rosegarden, it wouldn't > > alter the sound you > > actually hear while playing. > > > > Note that this also implies that if you record the > > results straight > > back into Rosegarden as it stands, you'll get some > > noise because > > you'll be recording the mixed soundcard input, not > > the pure output > > from Specimen or jack-rack (I think). For a clean > > recording, you'd > > have to use the same JACK connection manager to > > disconnect the > > Rosegarden record input from the ALSA PCM in and > > reconnect it to the > > output of Specimen or jack-rack or whatever. > > > > > > Chris > > _________________________________________________________ > Do You Yahoo!? > La mejor conexi?n a internet y 25MB extra a tu correo por $100 al mes. > http://net.yahoo.com.mx -- http://spamatica.se/music/
