17 Feb
2004
17 Feb
'04
12:31 a.m.
Hi Chris,
On Mon, 2004-02-16 at 22:43, Chris Pickett wrote:
No not quite the UA-20, and usb-audio in general, does work with alsa.
It's Jack and its alsa driver.
digger vermont wrote:
...
Ahh, but
it's not so simple. Jack has an alsa driver. My limited
understanding is that the frames/period must be a power of 2 of the
sample rate. The UA-20 is at 44100 which doesn't work.
Are you really saying that 44.1 kHz doesn't work with ALSA and JACK? Isn't 16-bit 44.1 kHz the CD audio standard?
I'm quite surprised (but
not doubting you) if that's the real reason your UA-20 doesn't work.
As far as I know 44.1 khz is the standard for CD. After too much time
searching it's the reason I came up with. Looking at jack-devel
archives it was a heated debate to have jack use anything that wasn't
n^2. It looked like they decided to support it, but at least the
version of jack I have doesn't yet.
Once again though, I barely understand it myself. I looked for a link
that was straight forward in explaining it, but no luck. Maybe someone
else here can explain it better.
Seeya
digger