[PD] Fw: Latency

Claude Heiland-Allen claudiusmaximus at goto10.org
Sat Sep 18 20:59:21 CEST 2010


On 18/09/10 00:44, Dan Wilcox wrote:
>
> On Sep 17, 2010, at 5:39 PM, Ed Kelly wrote:
>
>> I will sell my FA-101 and get a UA!
>
> ... the UA-25 only has 2 ins and outs at 16bit, you can do 2 in at 24bit or 2 out at 24 bit, but not full duplex.

I think it's slightly more complicated than that!

With my UA-25 I get full duplex at 24bit with the sample rate switch set 
to 44.1kHz and 48kHz (and the advance mode switch set to 'on', in case 
that matters).  At 96kHz it is probably different, but I never tried 
that yet.  (This is with the original UA-25, which I believe has been 
discontinued - the later versions may have different behaviour.)

 From my qjackctl messages pane:
--8<----8<--
apparent rate = 44100
creating alsa driver ... hw:1|hw:1|256|3|44100|2|2|nomon|swmeter|-|32bit
control device hw:1
configuring for 44100Hz, period = 256 frames (5.8 ms), buffer = 3 periods
ALSA: final selected sample format for capture: 24bit little-endian
ALSA: use 3 periods for capture
ALSA: final selected sample format for playback: 24bit little-endian
ALSA: use 3 periods for playback
--8<----8<--


Claude



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