19 Feb
2016
19 Feb
'16
10:50 p.m.
On 02/19/2016 10:14 PM, Ralf Mardorf wrote:
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?
[3]
### **** #### **** ### **** #### **** ### **** #### **** ### **** #### **** ### **** ####
Card 0 (HDSPMx579bcc):
* Playback Device 0 (RME AIO):
- Subdevice 0 (hw:HDSPMx579bcc,0,0):
used by: jackd (PID 7171)
access: MMAP_NONINTERLEAVED
format: S32_LE
subformat: STD
channels: 16
rate: 44100 (44100/1)
period_size: 1024
buffer_size: 16384
Wait. what? 16K buffers.
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?
Ardour's ALSA backend won't allow 16 periods (in case that's required by
this particular soundcard/kernel) 2,3 are the only options.
best,
robin