Hello Arnold, Am Donnerstag 16 Februar 2006 22:14 schrieb Arnold Krille: > 2006/2/16, conrad berhörster <conrad.berhoerster@xxxxxx>: > > well, i have 2 soundcards and want to capture from both at the same time > > with > > jack. i don't need sample sync (or such bad things ;=) ) only need the > > signal, each channel individual but into one app, i have written. > > Two explain Pauls Jedi-magic: Thanks very much, Paul was a little bit to "short" ;=) > If you use jack, you want sample-sync. If you don't want sample-sync > and just want to record two independent streams into your software > (assuming you don't want to use it for music[*]) you just have to open > both sounddevices the alsa way and process according to the > alsa-interface. No, this is not quite right for me. sample-sync is not the only reason, why someone uses jack. i use it i my app, because - easy programming interface , better than alsa. - take some other apps and get/set data from/to them i need that inputs not in a harddisk recording / pro audio way. all i need is getting the signal into the app, use some effects and put them out again. no sample sync, no need for "realtime". all inputs are independed. Than i have read http://alsa.opensrc.org/TwoCardsAsOne. is this page wrong! i thought, one big advantage of jack is, to handle more than one card. > > [*] If you want to do music with it, you want sample-sync... > > Enough things have been said about way two soundcards without syncing > can't be used as one multichannel device, so I won't repeat it here. yes, i know. i have read them too. maybe you can explain, what you mean exactly with the notion "multichannel device". Is it just a couple of IOs, without sync, or are the requirements for pro audios (with sync). if all this stuff isn't possible, do you have any idea to fix the problem. thanks c~
