chi ball wrote:
Then I open JACK connections: I see 2 windows: AUDIO and MIDI. Here, in both windows, I connect pd with my SB LIVE! sound card.
good.
1)in a audio patch (for example a simple oscillator with a slide..) *I can listen sound correctly* (even if with a fastidious background noise) and I can change frequency well with the slide.
good (whatever the source of your background noise is; probably there is some hardware mixer that connects an open input to the output)
2)in a midi patch (a patch certainly correct, tested in o.s. Windows..!) *I can't listen anything*. I see numbers change, but *no sound*.
well. you have connected the MIDI-out of Pd to the MIDI-sink of your soundcard. i would expect that this means that you are sending the MIDI data to the "MIDI-out" jack on your soundcard. if you have connected a synth to the MIDI-out of your soundcard, than you should hear something. i don't know whether your soundcard has a built-in synth, but if so, you probably have to load a soundfont or similar first (if it work on linux at all; i have no experience withsuch things).
if you have neither external synth nor built-into-your-soundcard synth, you can as well run a software synth, e.g. timidity.
fgmadr IOhannes