Joel Roth <jo...@pobox.com> writes: > Rodolfo Medina wrote: >> .... I want to buy one of those multichannel >> soundcards... Do you think this one could be all right...? >> >> >> https://www.strumentimusicali.net/product_info.php/products_id/51790/behringer-umc404hd.html?gclid=Cj0KCQiAuP7UBRDiARIsAFpxiRKgsptPW1qxkEw793ahs684ltlhyh5dcIgzLJXtDh39CZA8IEX3qgIaAnquEALw_wcB >> >> Rodolfo > > I looked around a bit, and the UMC404HD seems to be 'class > compliant' which means that the linux USB audio drivers can > access the most important functions. Behringer is definitely > on the low-cost end of things, but a lot of their hardware > seems to be of decent quality. > > A useful feature of this card is hardware monitoring, so > that you can listen to the audio during recording without a > time lag. > > Now that you've described your application (recording piano, > possibly with vocals) I think -- unless you're especially > comfortable and patient with low-level commands such as > ecasound provides -- you may like to run some kind of > multitrack recorder or DAW application. This will let you > adjust volume levels and add various plugins to the > different tracks. It's also common to duplicate a mono > signal to stereo and adjust the position right or left in a > stereo mix (e.g. panning). > > Someone already mentioned Audacity, which is quite easy to > use. > > More sophisticated software lets you apply effects in > realtime, so it's easier to diddle with parameters. > > For professional quality with all possible features, > there is Ardour. Another very well developed application is > Qtractor. > > I'll also shamelessly mention a lightweight DAW called Nama > that provides the most important functions for recording and > mixing. It's an application layer driven by text commands, > hotkeys and/or a simple GUI that runs Ecasound to provide > the signal processing. The debianized version is slightly > out of date, but you can at least get an idea of what it > looks like. One of several unusual features is a preset > system that lets you set plugin defaults, re-use chains of > plugins, and create templates for groups of tracks or entire > projects. I'm the biased author ;-) > > For hardware or software questions you cannot answer by > reading the docs or doing a web search, I'll refer you to > the many experts on the Linux Audio Users mailing list > (LAU).
Many thanks... I just need at the moment a modest home made live recording, so it's enough to me just a small USB one (stereo) channel sound card. I plug a microphone into it and another couple of microphones in the built-in sound card of the PC, through a special double mono cable. That way I get two different audio files, one for the voice and the other for the piano. Then I merge them together using Sox, so obtaining a 2-channel final remixed audio file, that can be listen to from a normal stereo player. What I want now, and for what I started the present thread, is, as I said, to keep those three channels separated and listen to them through three different loudspeakers. Thanks to the kind help from you listers, I understand that I need one of those multichannel sound cards... Regards Rodolfo