20 Jun
2006
20 Jun
'06
10:35 p.m.
Lee Revell wrote:
--
www.cesaremarilungo.com
On Wed, 2006-06-21 at 02:02 +0000, Cesare Marilungo
wrote:
Not all. On my desktop pc (which has a VIA 8237, an AC97 based card -
the mb is a ASUS K8V-X) jack lets me choose both sample rates.
c.
Lee Revell wrote:
I think cards defaulted to 48000Hz before DVDs existed. I believe the
AC97 spec requires it and it's cheapest to support a single sample rate
and rely on a software sample rate converter for everything else.
Lee
On Tue, 2006-06-20 at 10:24 -0700, Mark Knecht
wrote:
In fact it happens on my laptop (it has a VIA AC97 chip). Jack does
report the sample rate you choose but the other applications connect to
it at 48000Hz.
I guess it is because they're designed to play dvds (which are at
48000Hz) and they don't have a built-in sample rate converter. Maybe
JACK assumes they always have one since it is designed for high end cards?
Many built-in/inexpensive sound cards are stuck at
48K. Possibly this
one is also?
It's still a bug for JACK not to report any error.
Does aplay report any errors with a 44100Hz file?
- Mark
On 6/20/06, Link Swanson <link(a)sumerianbabyl.com> wrote:
>After removing my Multiface II and switching back to my nVidia onboard
>audio, qjackctl will not run at 44100. I can set it in the setup window
>and it reports starting 44100 in the messages:
>
>11:07:46.232 Patchbay deactivated.
>11:07:46.322 Statistics reset.
>11:07:46.498 MIDI connection graph change.
>11:07:46.528 MIDI connection change.
>11:07:47.580 Startup script...
>11:07:47.580 artsshell -q terminate
>11:07:47.861 Startup script terminated with exit status=256.
>11:07:47.861 JACK is starting...
>11:07:47.862 jackd -R -dalsa -dhw:1,0 -r44100 -p512 -n2 -S
>11:07:47.870 JACK was started with PID=3071 (0xbff).
>jackd 0.101.0
>Copyright 2001-2005 Paul Davis and others.
>jackd comes with ABSOLUTELY NO WARRANTY
>This is free software, and you are welcome to redistribute it
>under certain conditions; see the file COPYING for details
>JACK compiled with System V SHM support.
>loading driver ..
>Enhanced3DNow! detected
>SSE2 detected
>apparent rate = 44100
>creating alsa driver ... hw:1,0|hw:1,0|512|2|44100|0|0|nomon|swmeter|-|16bit
>control device hw:1
>configuring for 44100Hz, period = 512 frames, buffer = 2 periods
>nperiods = 2 for capture
>nperiods = 2 for playback
>11:07:49.953 Server configuration saved to "/home/bozone/.jackdrc".
>11:07:49.954 Statistics reset.
>11:07:49.979 Client activated.
>11:07:49.980 Audio connection change.
>11:07:49.981 Audio connection graph change.
>Enhanced3DNow! detected
>SSE2 detected
>11:10:21.095 MIDI connection graph change.
>11:10:21.123 Audio connection graph change.
>11:10:26.482 Audio connection graph change.
>11:10:26.504 MIDI connection graph change.
>
>But then both qjackctl and Ardour report 48000 as the samplerate.
>
>All help is appreciated.
>
>Link
>
>
>--
>e-mail is . . .
>
>
>
>
>