latency issue -core audio verses external firewire interface

alan* · Post by alan* » Wed Jun 08, 2005 7:56 am

Here is something I noticed in the audio preferences of Live. The built in audio has 8ms less latency than my firewire 410 when they are both at 505 buffers, 44.1 khz ?

Built in audio
12ms + 12ms + 0ms = 24ms

Firewire 410
15ms + 17ms + 0ms = 32ms

Is this normal ? I thought an external soundcard is supposed to offer better latency performance than the built in core audio ?

It is the same reading with or without the inputs selected in either case which I also don’t quite understand as i would have thought that if the inputs were not selected, only the outputs, they would not add to the total latency ?

hoffman2k · Post by **hoffman2k** » Wed Jun 08, 2005 8:41 am

well. On a g5 with built-in digital i/o i get about 3ms latency at 512 samples.
the only audio interface i tried so far that goes lower is the delta 1010.
The RME devices also have very low latnecy.
But i'm still saving for one of those

vince watson · Post by **vince watson** » Wed Jun 08, 2005 10:22 am

im running my RME on 2ms

chymera · Post by **chymera** » Wed Jun 08, 2005 10:39 am

my firewire 410 gives me 2ms

alan* · Post by alan* » Wed Jun 08, 2005 12:39 pm

how do you get it so low, i cant get mine lower than around 15ms before it starts breaking up, even then it can be a bit dodgy ?

Why am i getting better performance from the built in audio, I thought it was supposed to be the other way round ?