On 01/23/2015 01:01 PM, Len Ovens wrote:
On Fri, 23 Jan 2015, Leonardo Gabrielli wrote:
On Wed, 21 Jan 2015, Leonardo Gabrielli wrote: > In reality of the 16ms latency I mentioned, 5.3ms are the A/D and 5.3ms are the > D/A (48khz, 2 periods of 128 samples in JACK at both sides). The remainder That does not need to be. My 10 year old P4 was running an ice1712 at 48k/16/2 (.66ms) with no xruns. The machine I'm referring to is a Cortex A8 using its own audio codec, and I think the drivers are not exceptional. Lowering the period size was not possible. I was using Debian Stable.I have found that USB audio IFs generally can get to 64/2, but the INTEL (on board) IFs seem to need 64/3. I have heard that Firewire IFs can do at least 32/2.
Well, my USB audio IF (UCA202) doesn't work well at 64/2; works great at 64/3. Haven't done a lot with the onboard audio other than to verify that it, too, works - at 64/2.
This is on Aptosid (Debian Sid) with or without lowlatency kernel. -- David W. Jones gnome@xxxxxxxxxxxxx authenticity, honesty, community http://dancingtreefrog.com _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
