Hi again (and again many thanks),
I think my things still belongs to the 'alsa-devel' topic, because I use
the 'ffado-mixer' only to 'turn on' my audio input(s)/output(s)
I added my username to the "audio" anyway, and already I wont noticed
noise (but sometimes the audio 'stream(?)' stuck a ~half second when I
listen music and e.g.: meanwhile run a long file copy, or come some
sound from the browser. I think its a 'multi-threaded' problem, and/or
different audio sampling rate in same time.
So I use to make live records, and do some electric tracks too, but I
dont feel I need Jack, because ALSA also can work with low latency (at
least in the Tracktion). And - strange - but I feel on this platform the
sound quality better than on Windows (with Win10 and the latest Win7
64bit drivers).
My main problem already only;
After when I turn off the soundcard and/or the laptop, I need to start
again the ffado-mixer to turning on the channels (default: every channel
muted, or inactive). I'd appreciate some stuff that resolves the basic
settings, I only need the 1/2 sreaming out and 1/2 analog input. Thats all.
(sometimes when I restart the system and the soundcard still on power
(external ps) the settings are retained)
Regards,
Peti
On 2016-10-24 00:43, Jonathan Woithe wrote:
On Sun, Oct 23, 2016 at 08:22:32PM +0200, Peti Pap wrote:
I installed now an Ubuntu 16.10 (because this distro can handle ffado 2.3
well), and now almost work the playback (but sometimes a bit noisy, and I
dont know the reason).
When I start the FFADO Mixer from terminal, I get the following messages:
Cannot create RT messagebuffer thread: Operation not permitted (1)
Retrying messagebuffer thread without RT scheduling
Messagebuffer not realtime; consider enabling RT scheduling for user
This indicates that your user does not have access to the realtime
scheduling features on the system. While this should not affect the
operation of ffado-mixer (and its related ffado-dbus-server), it will cause
problems if you choose to use the FFADO audio streaming system via jackd's
"firewire" backend. From the above message I'm not sure if you're doing
this though: the "noisy" playback might still be relating to your use of the
ALSA streaming driver.
On most distributions it is sufficient to add your user to the "audio".
Not having access to the realtime scheduling shouldn't cause ffado-mixer any
problem. However, just to be sure it's probably worth adding your user to
the audio group to see if that improves the ffado-mixer behaviour.
-----------------------------------------------
FFADO Control DBUS service
Part of the FFADO project -- www.ffado.org
Version: 2.3.0-
(C) 2008, Pieter Palmers
This program comes with ABSOLUTELY NO WARRANTY.
-----------------------------------------------
1477244892717343: (ffado-dbus-server.cpp)[ 270] main: Discovering
devices...
03966254548: (ffado-dbus-server.cpp)[ 329] main: DBUS service running
03966254588: (ffado-dbus-server.cpp)[ 330] main: press ctrl-c to stop it &
exit
03966254597: Debug (ffado-dbus-server.cpp)[ 333] main: dispatching...
03970152237: Error (avc_avdevice.cpp)[ 300] supportsSamplingFrequency:
sample rate not supported by input plug
I'm not sure what would cause this. Was the device actively streaming audio
at the time you started ffado-dbus-server? That still shouldn't cause any
issues, but obviously something is amiss.
(And if I close the mixer GUI, I cant re-open again without killing the
ffado-dbus-server)
That's strange. Something seems to be getting hung up somewhere.
Peti: to keep the original thread in alsa-devel on topic, you may like to
subscribe to ffado-devel and start a fresh thread there about the
above ffado-mixer / ffado-dbus-server issues you are seeing.
Regards
jonathan
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