<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:12pt"><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt;">Fernando,<br>Thank you for the fast reply... I was also trying some unusual combinations last night... like 32 for buffer, and 16 (or more) for period. Is there any trade offs for using low buffer / high period? 2 Periods or less definitely does not work (tried that last night)... more buffering works, but the latency then gets large (341mS or bigger).<br><br>I was able to find this:<br><a href="http://www.alsa-project.org/main/index.php/Matrix:Module-hda-intel">http://www.alsa-project.org/main/index.php/Matrix:Module-hda-intel</a><br><br>Would any of this be good when using Jack?<br><br>Thanks,<br>NexxuSix<br><br><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">----- Original Message ----<br>From:
Fernando Lopez-Lezcano <nando@ccrma.Stanford.EDU><br>To: Nexxus Six <nexxusix@yahoo.com><br>Cc: planetccrma@ccrma.Stanford.EDU<br>Sent: Wednesday, April 30, 2008 2:23:29 PM<br>Subject: Re: [PlanetCCRMA] JACK Optimization<br><br>
On Wed, 2008-04-30 at 12:23 -0700, Nexxus Six wrote:<br>> Fenando,<br>> Do you have information on what is the best way to fully optimize JACK<br>> for my onboard laptop audio? I have Intel HDA, and Realtek ALC268. I<br>> was playing around with the combination of Frames, Buffers, and got<br>> some good results, but still occasionally I would have some drops. I<br>> tried lower sample rates (41k samples per second) and "Output Only" 2<br>> channel maximum.<br>> <br>> Is there any recommendations or general rules that apply here?<br><br>The one rule for hda intel hardware is to use 3 periods or more. 2 <br>does not work very well (if at all) so you are almost certainly already <br>doing that. Hda intel is by design quite crappy....<br><br>There are some parameters you can pass to the kernel module when it<br>loads that apparently makes it work when it doesn't, I don't know if<br>those would help with an already working
configuration. <br><br>-- Fernando<br><br><br></div></div></div><br>
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