20 Jul
2013
20 Jul
'13
4:33 a.m.
Hi Len.
I would like to use jackd in 32bit (or is it 24bit, or float?) but
output in 16bit (resampled with zita-j2a). This is to play 24bit files
with the best possible quality when using multiple 16bit sound cards or
USB modules.
When starting jackd normally (with the alsa backend and a 16bit sound
card), mplayer output is 16bit (that's not what I want).
When starting jackd with the dummy backend, or the alsa backend
connected to a loop device, jackd works in 32bit float and mplayer
output is floatle; jackd doesn't report sync problems and mplayer just
plays the file. Then I connect the floatle output of mplayer to
zita-j2a, there's no sound. Even when starting jackd with the
internal sound card, zita-j2a stays silent.
--
Marc
Len Ovens <len(a)ovenwerks.org> a écrit :
On Fri, 19 Jul 2013, Marc Lavallée wrote:
For some reason, zita-j2a 0.2.2 is silent on my
laptop. I tried it
with the built-in sound card and also with a USB module (both are
16bit/48KHz). I started jackd with the alsa and the dummy backends,
without success. I even recompiled zita-j2a. What could be the
cause?
Dummy back end? Jackd has to be synced to something. Normally, the
use for zita-a2j is to add a second audio card. So jackd must first
be connaected to a first card.
Len