Hi Sergei Steshenko! On 2012.04.30 at 02:03:34 +0400, Sergei Steshenko wrote next: > > You apparently lack imagination. > > Here is a number of hints for you: > > 1) how can you know how many input channels I need ? > 3) how can you know whether my computer (which is not necessarily a desktop) at has "Line In" input ? Making lots of USB soundcards to work properly might be an issue by itself, even if each card works separately. There can be various issues with USB bus causing latency problems resulting in cracking and other problems if you actually try to use lots of USB soundcards. Reliable solutions for getting lots of line input on USB are using devices which are made for that; of course it won't be as cheap as a bunch of USB soundcards, but they are made for this job. There are various devices with these functions from M-Audio, E-MU and some other manufacturers. An example would be M-Audio Fast Track Ultra, USB 2.0 device which provides 8 analog inputs - I haven't checked if it works with ALSA, though, but I'm pretty sure it's possible to find something that works. That said, it's probably cheaper to buy lots of cheap USB single-channel soundcards from ebay or DX or something and check if they just work - and if they don't, think about real multichannel USB interfaces. But don't assume that they will all work together just because single one did - check if they actually work correctly when you feed required amount of input streams into them. -- Vladimir ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
