What latency with Audigy card

breakerfall
Posts: 54
 Joined: 2006-03-31

Well the title pretty much sums up my question…

I don’t have the funds to spend on a good soundcard, not right now anyway and I’ve been using a Creative Audigy for years. I was just wondering what kinds of latency I should be expecting with this hardware. I’m getting just over 42ms (which seems blisteringly high) in realtime.

Should I be expecting better latency? I’m running the 2.6.17 kernel with low latency settings and the realtime-lsm module installed.

Cheers =]

‹ monitoring Do I need to buy some sort of MIDI device to record more then one track at a time? ›

Submitted by breakerfall on Fri, 2006-07-14 15:50. login or register to post comments
breakerfall
Posts: 54
 Joined: 2006-03-31
Actually, in ardour, I think

Actually, in ardour, I think my latency is 23msecs, but qjackctl shows 47…

sigh


Sat, 2006-07-15 18:09 login or register to post comments
Esa
Posts: 18
 Joined: 2006-03-27
With my Audigy, Ardour says

With my Audigy, Ardour says latency is 5,3 msecs. I don’t know if that’s correct since it says everytime that exact amount, but I haven’t noticed a single problem when recording. And that’s most important for me..

—————————
Check out my songs at http://www.emvg.net/esa


Sat, 2006-07-15 20:54 login or register to post comments
breakerfall
Posts: 54
 Joined: 2006-03-31
Which model are you using?

Which model are you using? I’m asking about the Creative Audigy Platinum (the very first one). Is this the card you have? Are you running the realtime-lsm or did you achieve realtime another way?

Thanks =]


Sun, 2006-07-16 05:50 login or register to post comments
Esa
Posts: 18
 Joined: 2006-03-27
Audigy 2 ZS bulk

It’s Audigy 2 ZS, cheap bulk version. I installed the multimedia kernel for Mandriva.

—————————
Check out my songs at http://www.emvg.net/esa


Sun, 2006-07-16 13:25 login or register to post comments
lerni
Posts: 2
 Joined: 2006-07-12
Should I be expecting better latency? - YES!

hi there,

since you are on gentoo. have a look at this guide here:

Audio and HD Recording with Gentoo:
http://forums.gentoo.org/viewtopic-t-462677.html

as far as I konw, latency it is not much about audigy “foo” or “bar”.

lerni


Thu, 2006-07-20 02:28 login or register to post comments
sampo
Posts: 318
 Joined: 2006-03-16
Latency is caused by buffering

The amount of latency qjackctl reports you is a calculated round-trip time it takes for a signal to go in the soundcards ADC and to come out of the DAC. It’s calculated as so: “1 / [sampling rate] * [frames per period] * [periods per buffer]” seconds.

Periods per buffer means how many buffers of the signal the soundcard will buffer. The buffers have “frames per periods” samples in them.

The smaller the buffers the lower the latency, but the more processing power is needed to achieve You also need to run jackd with realtime priorities for good and reliable performance.


Thu, 2006-07-20 15:25 login or register to post comments