Mod Archive Forums
Music Production => MilkyTracker => Tracking => MilkyTracker Support => Topic started by: urban soul on July 29, 2010, 11:14:23
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Hi,
i am running a ubuntu jaunty kernel with ubuntu packages and I can't get MT to use the Jack audio driver.
First I tried MT v0.90.80 and it said: "JACK: Can't load libjack (is it installed?)"
... although these files were present in /usr/lib/ :
# ls libj*
libjack libjackserver.so.0 libjack.so.0
libjack-0.100.0.so.0 libjackserver.so.0.0.28 libjack.so.0.0.28
libjack0.100.0:
inprocess.so jack_alsa.so jack_firewire.so jack_net.so
intime.so jack_dummy.so jack_freebob.so jack_oss.so
~~~~~~
Next I compiled v0.90.85 from source (with and without patches, makes no difference). The select driver dialog now offers: alsa | sdl_audio.
I get the following errors when switching between alsa and sdl_audio with different buffer sizes:
# /usr/local/bin/milkytracker
ALSA lib pcm_dmix.c:874:(snd_pcm_dmix_open) unable to open slave
E: socket-client.c: socket(): Address family not supported by protocol
SDL: Failed to open audio device! (buffer = 8192 bytes)..
SDL: Try setting "Force 2^n sizes" in the config menu and restarting.
edit: deleted the similar err. messages.
I wonder if jack support is present here?!
urban
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When building from source, Jack support will only be compiled if the Jack development libraries are installed on your system. If you look at the output of the ./configure script you will see a message which reports whether this has been detected or not.
As for the error messages you pasted, it seems that SDL cannot successfully access the ALSA driver - you could try forcing SDL to use a different driver (see the readme_unix file for details of this). I think Ubuntu uses Pulseaudio by default.
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Thanks for the quick hint!
I got libjack-dev and everything is fine.
As for the sdl_audio/alsa errors: these drivers work also - jack was running using them (single client). I dont use pulseaudio here on puppylinux.
Thx a ton!
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with your advice it work today