19 Feb
2016
19 Feb
'16
11:46 p.m.
On 02/19/2016 11:35 PM, Ralf Mardorf wrote:
2
You tell jack to use 2, but jack actually uses 16.
On Fri, 19 Feb 2016 22:50:14 +0100, Robin Gareus
wrote:
I should have been more specific, I meant which settings did you enter
in the Audio/Midi Setup Dialog?
Input-Device, Output-Device, Sample rate, Buffer size, Periods, ...
On 02/19/2016 10:14 PM, Ralf Mardorf wrote:
I didn't configure anything. Hi Robin,
Errors/Messages:
ERROR: AlsaAudioBackend: failed to allocate parameters.
ERROR: AlsaAudioBackend: failed to allocate parameters.
ERROR: AlsaAudioBackend: failed to allocate parameters.
Well that explains why it it won't, but not the reason behind it.
What soundcard and settings did you configure? creating alsa driver ...
hw:HDSPMx579bcc,0|hw:HDSPMx579bcc,0|1024|2|44100|0|0|nomon|swmeter|-|32bit
configuring for 44100Hz, period = 1024 frames (23.2 ms), buffer = 2
periods ALSA: final selected sample format for capture: 32bit
integer little-endian ALSA: use 16 periods for capture ALSA: final
selected sample format for playback: 32bit integer little-endian
ALSA: use 16 periods for playback
WTH? 16 periods.
Does jackd start with 2 or 3 periods on that given interface? Usually I use 48KHz p256 n2:
[rocketmouse@archlinux ~]$ jackd -dalsa -dhw:0 -r48000 -p256 -n2
jackdmp 1.9.10
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2014 Grame.
jackdmp 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
no message buffer overruns
no message buffer overruns
no message buffer overruns
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
audio_reservation_init
Acquire audio card Audio0
creating alsa driver ... hw:0|hw:0|256|2|48000|0|0|nomon|swmeter|-|32bit
configuring for 48000Hz, period = 256 frames (5.3 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 32bit integer little-endian
ALSA: use 64 periods for capture
ALSA: final selected sample format for playback: 32bit integer little-endian
ALSA: use 64 periods for playback
and 64.
I dimly recall seeing some message on LAU fly by about some RME devices
requiring 16K buffers.
If you have such a kernel/card, Ardour/ALSA won't currently support it
directly, sorry.
robin