What to do about latency in Ubuntu 14.04?
Posted: Fri May 16, 2014 7:01 am
Greetings all,
About a week ago, I bought a Zoom R16 multitracker/audio interface/controller. Sending audio playback from desktop to laptop (and vv) previously not doable (because of aging gear) has greatly improved. But now considerable latency on the laptop has come to my notice.
My desktop is dual boot (Ubuntu 12.04 LTS/Windows 7). Windows, in this set-up, is nothing more, generally, than an auxiliary - offering, for example, readily available virtual musical instruments to play, on MIDI-enabled digital piano, in much less complicated ways than in Ubuntu (from my point of view, anyway). These, though, can't be recorded in Ubuntu on the desktop, obviously - so now Audacity kicks in (on the laptop - also dual boot, but here only Ubuntu 14.04 LTS relevant).
From audio out, on the desktop, a line goes to one of eight Zoom inputs. And another from Zoom's L/R audio outputs to mic/line in, on the laptop - and Audacity. Invariably, however, signal from the desktop (adding to an already existing score) will arrive in Audacity with considerable delay. And in playback (i.e. Audacity's, on the laptop), it'll play consistently slower than the rest of the score, oddly enough.
Sample from the sending end (desktop) plays without any latency whatsoever. But presently I have consistent lag at the receiving end (laptop/14.04's Audacity).
Desktop, Zoom and laptop bit rates are all 24: I checked. So much seems clear. Apart from that, I have no idea what else to do.
Any thoughts?
tnob
NB: desktop as well as laptop have been rigorously overhauled only a couple of weeks ago. Both now contain the latest version of Audacity. Furthermore, if I can't make the above construct work, I'll probably be back to Windoze entirely - and I'd positively hate that!
About a week ago, I bought a Zoom R16 multitracker/audio interface/controller. Sending audio playback from desktop to laptop (and vv) previously not doable (because of aging gear) has greatly improved. But now considerable latency on the laptop has come to my notice.
My desktop is dual boot (Ubuntu 12.04 LTS/Windows 7). Windows, in this set-up, is nothing more, generally, than an auxiliary - offering, for example, readily available virtual musical instruments to play, on MIDI-enabled digital piano, in much less complicated ways than in Ubuntu (from my point of view, anyway). These, though, can't be recorded in Ubuntu on the desktop, obviously - so now Audacity kicks in (on the laptop - also dual boot, but here only Ubuntu 14.04 LTS relevant).
From audio out, on the desktop, a line goes to one of eight Zoom inputs. And another from Zoom's L/R audio outputs to mic/line in, on the laptop - and Audacity. Invariably, however, signal from the desktop (adding to an already existing score) will arrive in Audacity with considerable delay. And in playback (i.e. Audacity's, on the laptop), it'll play consistently slower than the rest of the score, oddly enough.
Sample from the sending end (desktop) plays without any latency whatsoever. But presently I have consistent lag at the receiving end (laptop/14.04's Audacity).
Desktop, Zoom and laptop bit rates are all 24: I checked. So much seems clear. Apart from that, I have no idea what else to do.
Any thoughts?
tnob
NB: desktop as well as laptop have been rigorously overhauled only a couple of weeks ago. Both now contain the latest version of Audacity. Furthermore, if I can't make the above construct work, I'll probably be back to Windoze entirely - and I'd positively hate that!