Re: [LAT] To much latency

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To: <linux-audio-tuning@...>
Date: Sunday, October 30, 2011 - 11:25 am

On 10/30/2011 12:02 PM, Dave Stikkolorum wrote:

Hello Dave,

46.4ms is the default JACK latency (1024 frames / 44100 sample rate * 2
periods). You can try lowering it by reducing the number of frames. But
if you get xruns then (buffer errors) then you may need to optimize your
Ubuntu install. You might want to look here:
http://wiki.linuxmusicians.com/doku.php?id=system_configuration
And it's possible to get better performance with an external soundcard,
especially compared to onboard cards and specifically in the case of
ac97 soundcards. The latter just refuse to work at lower latencies (at
least for me). There are quite some soundcards available that yield good
performance and that are compatible with Linux:
http://wiki.linuxaudio.org/wiki/current_audio_gear

For starters could you run cat /proc/asound/cards in a terminal on the
laptop with the Intel soundcard?

Best,

Jeremy
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Messages in current thread:
[Linux-audio-tuning] test, MarcOChapeau, (Sun Jul 27, 11:34 am)
[LAT] hello, dyne:bolic -rt and freeeee, jaromil, (Wed Sep 10, 2:06 pm)
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[LAT] We're back online !, Marc-Olivier Barre, (Thu Apr 22, 8:10 pm)
[LAT] presonus firebox and 2.6.31-9-rt gives tons of xruns, yvan volochine, (Tue May 18, 10:45 am)
[LAT] Document on using Jack Apps, Arvind Venkatasubramanian..., (Sat Jul 31, 10:23 pm)
[LAT] rt kernel 2.6.39, Emanuel Rumpf, (Sun May 29, 11:56 am)
[LAT] To much latency, Dave Stikkolorum, (Sun Oct 30, 11:02 am)
[LAT] 3.x kernel, Emanuel Rumpf, (Wed May 2, 8:48 pm)
Re: [LAT] 3.x kernel, Robin Gareus, (Wed May 2, 8:51 pm)
Re: [LAT] To much latency, Jeremy Jongepier, (Sun Oct 30, 11:25 am)
Re: [LAT] To much latency, Dave Stikkolorum, (Sun Oct 30, 11:55 am)
Re: [LAT] To much latency, Jeremy Jongepier, (Sun Oct 30, 12:03 pm)
Re: [LAT] To much latency, Dave Stikkolorum, (Sun Oct 30, 12:23 pm)
Re: [LAT] To much latency, Jeremy Jongepier, (Sun Oct 30, 1:50 pm)
Re: [LAT] To much latency, Dave Stikkolorum, (Sun Oct 30, 2:13 pm)
Re: [LAT] To much latency, Jeremy Jongepier, (Sun Oct 30, 2:19 pm)
Re: [LAT] To much latency, Dave Stikkolorum, (Sun Oct 30, 2:39 pm)
Re: [LAT] To much latency, Jeremy Jongepier, (Mon Oct 31, 11:59 am)
Re: [LAT] To much latency, Dave Stikkolorum, (Tue Nov 1, 4:17 pm)
Re: [LAT] To much latency, Jeremy Jongepier, (Wed Nov 2, 5:34 pm)
Re: [LAT] To much latency, Rafael Vega, (Tue Nov 1, 12:25 am)
Re: [LAT] To much latency, Daniel James, (Tue Nov 1, 10:04 am)
Re: [LAT] To much latency, Rafael Vega, (Thu Nov 3, 12:33 pm)
Re: [LAT] To much latency, email.rafa@gmail.com, (Thu Dec 22, 2:50 pm)
Re: [LAT] rt kernel 2.6.39, Robin Gareus, (Sun May 29, 1:43 pm)
Re: [LAT] rt kernel 2.6.39, Emanuel Rumpf, (Sun May 29, 2:39 pm)
Re: [LAT] rt kernel 2.6.39, Robin Gareus, (Mon May 30, 3:52 pm)
Re: [LAT] Document on using Jack Apps, Daniel James, (Tue Aug 3, 6:48 pm)
Re: [LAT] [LAU] Are RT-patches needed anymore? (Was Re: &gt;..., Lars-Erik Helander, (Mon Feb 2, 8:53 am)
Re: [LAT] [LAU] Are RT-patches needed anymore? (Was Re: &gt;..., Fernando Lopez-Lezcano, (Mon Feb 2, 6:35 pm)