Does anyone know how to get Audacity working with the jack audio connection kit?

i run them both using sudo
sudo qjackctl
then start jack
then
sudo ladccad
then
sudo ardour

sure is easier then patching the kernel and junk
i have one installation setup following all the crazy instructions with 2.4.x kernel and patches
but my more modern system with stock 2.6.8.1 kernel just using sudo works alot better.

Hi foo_bar_foo,
I used your sudo approach to start jack, ladccad: certainly solved some probs.
But I wonder whether you can give me a hint about why I get no sound from Muse with my SB Audigy 2 X (emu10k).
(Suse 9.1, kernel 2.6.4....)
Timidity plays midi files okay -- I suppose that's because it uses the soft synth approach. But no sound from Muse.
Do you put anything fancy in your modules.conf or asoundrc? E.g. something to load soundfonts? (I'm new to this.)

btw
Did you figure out how to kill the zombie muse?

Hi

foo_bar_foo: Thanks but what is ladccad? I have never used it. I am using muse (with a soundblaster) & jack & a lot of other apps with no problem. It as runs as root on a home grown live CD, so sudo is not an issue.

The problem is that of all the apps on my system Audacity cannot access the sound server with jack running, but if you turn jack off you then have to restart all the other apps when you restart jack.

spindles - in Linux your soundcard does not automatically load soundfonts. Your install disc should have them (search for *.sf2 or *.SF2). If you use fluidsynth from with muse you should be able to load soundfonts, or there is a program called asfxload that can load them to the card.

UPDATE:

I have compiled & installed laddca. When I start it (ladcad) & try & run audacity I am still getting an error message & there is still no device I can change it to that will work

threadjack !

what kind of soundcard do you have ?
some soundcards can load soundfonts

for timidity make it a server
timidity -iA -B2,8 -Os -EFreverb=0 -EFchorus=0
it will return a midi port that should show up in muse

I'm sorry i misread the post
Audacity can't work with jack

ladccad LADCCA stands for Linux Audio Developer's Configuration and Connection API - it is a session management system for audio applications and acts like a configuration server

you might be able to use sweep as an audio editor while jack is running

quote:
________________________
Threadjack !

what kind of soundcard do you have ?
some soundcards can load soundfonts
_________________________

threadjack??
I was trying to follow forum etiquette by joining an existing thread.
Well, my apologies to friendly_guy if I have jacked his jack thread. And thanks for the tips about the soundfonts -- confirms my suspicions.

BTW I'm using an SB Audigy2 Platinum X.
In case it helps anyone else -- on the alsa site I saw this:
_______________________________
Apparantly, this card does not include any
soundfonts in ROM, so in order for midi playback to work, one has to be loaded in.
Fortunately, the solution is very easy.
First, get awesfx from http://mitglied.lycos.de/iwai/awedrv.html
Second, get 8MBGMSFX.SF2 from the card install CD or a windows install.
Third, at boot run: /usr/bin/sfxload /path/to/8MBGMSFX.SF2
_________________________________

I saw and copied a suggestion from foo_bar_foo for Jack stuff in asoundrc (from another thread). Hoping that will help.

edit:
I have some sound from muse now. Just a bit crashy still.
Don't know what made the difference but thanks people.
Now to learn how to use it properly...

still no luck getting ladccad going: -- "Servname not supported for ai_socktype"

(Feel free to tell me to get off your thread and start my own.)

Audacity can run with Jack - If you read the specs of 'Studio to go' they have it working. From my research I gather it is something to do with portaudio, I have compiled Audacity with portaudio v19 & it is alsa aware but I still can't get it to work with Jack.

*Please* is there anyone out there who knows how it is done

it appears the demudi people got it working
Jul 2005
i didn't know this
here is the thread
http://music.columbia.edu/pipermail/...ly/024519.html
it looks like the audacity people never update their port audio section
i never even have gotten audacity to comple with alsa support

Thats useful thanks.

I can add that you have to configure Audacity --without- portmixer as there is a compatability issue.

I have also found that Audacity compiled this way is more crash prone. I read a warning that the portaudio support was experimental & that seems to be the case.

UPDATE:
I have followed the instructions on the link but still audacity does not appear in qjackctl :0(

(Note - there is one error in the instructions the configure command should be

./configure --with-portaudio=v19

& not 'enable' )

Any suggestions welcome

forgive for me stating the obvious

the link says ports don't appear in jack until you hit record and they go away when you hit stop
all you can do is open the audacity preferences Audio I/O dialog and select
the available jack clients as your recording source/playback source

by the way sweep doesn't work either with jack i just tried it
it seems the only alternative is rezound