On Tue, 17 Jul 2012, Konstantinos Birkos wrote: > What I would like to do is record from a single source and have as > outcome a series of audio tracks with some configurable overlapping > periods. In other words, the beginning of a track will be some seconds > earlier in time than the end of the previous track. If this is not > possible, I would at least like to achieve gapless recordings (with no > missing samples between subsequent tracks). Are the singers/players/.... actually playing overlapped? Then a microphone will pick that up and the sound card will not distrub that. If what you mean is that you want to record those 5 tracks at different times/places, and you would like the final format to be as below, then that has nothing to do with sound cards. That is post processing, using your favourite sound editor (eg audacity will do what you want). But alsa does not get involved. Alsa has to do with getting the sound off the sound card into the computer as it occurs, everything else is the duty of some other programs. So no, you sound card cannot remember what that source played a while ago and output that together with what is playing now. The computer can. > > I hope the following figure helps. > > |<-----------------Recording period--------------------------------------->| > |-----Track1-----| > |-----Track2-----| > |-----Track3-----| > > |-----Track4-----| > > |-----Track5---| > > --->| |<--- > > Overlapping period (and track 1 and 4 overlap?) > > On 07/17/2012 07:03 PM, Bill Unruh wrote: >> On Tue, 17 Jul 2012, Konstantinos Birkos wrote: >> >>> Hello, >>> >>> Is there a way to record consecutive overlapping tracks via a single >>> sound card? I mean tracks of constant duration overlapping a couple of >>> seconds with the next track. >> I really have no idea what you are talking about. What kind of tracks? >> Usually one records the tracks, which one uses the soundcard for, and >> then one >> overlaps them in post production. (eg audacity). Or you can have the two >> singers singing over each other during the recording. So perhaps you >> should be >> a bit more detailed in what you want to do. >> >> >>> >>> Best regards, >>> Kostas Birkos >>> >>> ------------------------------------------------------------------------------ >>> >>> 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 >>> >> > > > ------------------------------------------------------------------------------ > 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 > -- William G. Unruh | Canadian Institute for| Tel: +1(604)822-3273 Physics&Astronomy | Advanced Research | Fax: +1(604)822-5324 UBC, Vancouver,BC | Program in Cosmology | unruh@xxxxxxxxxxxxxx Canada V6T 1Z1 | and Gravity | www.theory.physics.ubc.ca/ ------------------------------------------------------------------------------ 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
