26 Apr
2005
26 Apr
'05
10:11 a.m.
Hi.
I am sure this sounds a bit crazy to some of you, but be ensured,
I am not (yet) completely out of my mind and there are actually
real reasons for doing what I do :-).
I am now running jackd from within Emacs, using jack.el.
Find it here: http://delysid.org/emacs/jack.el
Basic usage:
* Install the elisp file and put (require 'jack) in your .emacs.
* Customize startup options: M-x customize-group RET jack RET
* I.e. jack-sample-rate and jack-period-size are two important candidates.
* Start jack: M-x jack-start
You will see the verbose output in a special buffer called *JACK output*.
* If you want/need to get rid of your jack instance, simply do
M-x jack-kill RET
* If you changed sample rate or any other startup parameter, do
M-x jack-restart RET
to make them effective.
Plans:
* Do something useful with xrun output, maybe some stats (suggestions?).
* Add support for dummy and oss drivers, and add remaining ALSA
params.
* Write a patchbay based on jack_lsp and jack_{dis,}connect.
Why am I doing this?
You might have noticed I am recently seriously working on
Emacs extensions related to Sound and audio. osc.el is working
nicely and om.el, a client to drobillas om-synth is just waiting
for a polish up. midi.el is parsing binary data already and
needs a bit more careful planning before it can really grow.
The idea behind jack.el was that I basically got fed up by jack
wasting either a virtual console, or a screen window. Both dont really
offer confortable scrollback, so the idea to make jack run from
within Emacs, and collect all its output into a Emacs buffer was born.
Some nice sideeffects: Load statistic is collected in a variable,
so if you are into elisp, you can do fancy stuff like:
(with-current-buffer (jack-output-buffer) jack-load)
to retrieve the current load :-)
Combine all this with things like csound-x (Csound support for Emacs)
and the SuperCollider Emacs frontend, and you get a truly
powerful composition and experimentation environment.
One day I'll learn CLM and CM, and add it to the mix as well :-)
--
CYa,
Mario
29 Apr
29 Apr
10:21 a.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
Mario Lang <mlang(a)delysid.org> writes:
Find it here: http://delysid.org/emacs/jack.el
Plans:
* Do something useful with xrun output, maybe some stats (suggestions?).
* Add support for dummy and oss drivers, and add remaining ALSA
params.
* Write a patchbay based on jack_lsp and jack_{dis,}connect.
Intelligent completion for jack-{dis,}connect is now done.
For the simplest case, where you only have alsa_pcm with two
capture and two playback ports available, the connection commands
can be used with very few keystrokes:
To connect capture_1 to playback_2:
M-x jack-c RET c TAB 1 RET 2 RET
To disconnect this connection (if it is the only one):
M-x jack-d RET c RET
I.e. whenever jack-{dis,}connect can guess whats comming next,
the field gets filled in and the user doesnt even have to type anything.
Even common prefixes are inserted, i.e. if a client has only
ports starting with capture_, the completion prompt already
inserts this.
You can even think in reverse, if you give jack-connect an input
port as first arg, it will only allow output ports for completion
for the second arg, and automatically reverse the two such that jack_connect
groks the invokation.
Same goes for jack-disconnect, you dont necessarily have to
give the output port as first arg, you can start with the input port.
So long
--
CYa,
Mario
10:48 a.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
hi mario,
very cool stuff!
On Fri, Apr 29, 2005 at 02:22:15PM +0200, Mario Lang wrote:
> * Add support for dummy and oss drivers, and add
remaining ALSA
> params.
any chance ~/.jackdrc could be parsed and used by jack.el?
<sk>
11:41 a.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
stefan kersten <steve(a)k-hornz.de> writes:
very cool stuff!
On Fri, Apr 29, 2005 at 02:22:15PM +0200, Mario Lang wrote:
Clue me in, I've never seen any reference to .jackdrc yet.
Right now, you'd customize the jack group in Emacs to change
default startup options? Does ~/.jackdrc get read by jackd?
Is it documented somewhere?
--
CYa,
Mario
> * Add support for dummy and oss drivers, and
add remaining ALSA
> params.
any chance ~/.jackdrc could be parsed and used by jack.el?
11:57 a.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
On Fri, Apr 29, 2005 at 03:42:08PM +0200, Mario Lang wrote:
stefan kersten <steve(a)k-hornz.de> writes:
it's a simple file containing the server path and commandline
args, optionally separated by newlines, as in:
/usr/local/bin/jackd
-d alsa
-d hw:0
-r 44100
...
since jackdrc is used when jackd starts automatically (and
also by qjackctl, IIRC), it would be cool to have jackd
options centralized in one file.
<sk>
very cool stuff!
On Fri, Apr 29, 2005 at 02:22:15PM +0200, Mario Lang wrote:
Clue me in, I've never seen any reference to .jackdrc yet.
Right now, you'd customize the jack group in Emacs to change
default startup options? Does ~/.jackdrc get read by jackd?
Is it documented somewhere? > * Add support for dummy and oss drivers, and
add remaining ALSA
> params.
any chance ~/.jackdrc could be parsed and used by jack.el? 
12:13 p.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from withinEmacs
Mario Lang wrote:
Clue me in, I've never seen any reference to
.jackdrc yet.
Right now, you'd customize the jack group in Emacs to change
default startup options? Does ~/.jackdrc get read by jackd?
Is it documented somewhere?
There is a paragraph at the end of this page:
http://jackit.sourceforge.net/releases/0.98.0/notice.php
Cheers,
Andreas
1:19 p.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
On Fri, Apr 29, 2005 at 02:22:15PM +0200, Mario Lang
wrote:
Clue me in, I've never seen any reference to .jackdrc yet.
Right now, you'd customize the jack group in Emacs to change
default startup options? Does ~/.jackdrc get read by jackd?
Is it documented somewhere? > * Add support for dummy and oss drivers, and
add remaining ALSA
> params.
any chance ~/.jackdrc could be parsed and used by jack.el?
1:44 p.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
On Fri, Apr 29, 2005 at 05:19:17PM +0200, Mario Lang wrote:
Done. If you have a ~/.jackdrc jack.el will parse it
and use it
for startup. You might want to add -v to your ~/.jackdrc then since
jack.el makes use of the continuus output to do realtime load display.
If you set `jack-use-jack-rc' to nil, jack.el will not attempt to use your
~/.jackdrc and do some (pretty crude yet) magic to construct proper args
based on your jack.el variable settings.
http://delysid.org/emacs/jack.el
cool, thanks!
<sk>
30 Apr
30 Apr
2:33 p.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
Cost of one low-latency, sample-synchronous audio server: free!
Cost of one lisp-extensible, editor-that-thinks-its-an-OS: free!
Value of putting them together: Priceless!!
i thought i had seen everything yet. i apologize, i was wrong :))
--p
7:43 p.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
On Friday 29 April 2005 18:07, Paul Davis wrote:
Cost of one low-latency, sample-synchronous audio
server: free!
Cost of one lisp-extensible, editor-that-thinks-its-an-OS: free!
Value of putting them together: Priceless!!
Yeah, all that emacs is missing to be counted as a full-featured operating
system is an easy-to-use texteditor...
Arnold
:q
--
There is a theory which states that if ever anyone discovers exactly what the
Universe is for and why it is here, it will instantly disappear and be
replaced by something even more bizarre and inexplicable.
There is another theory which states that this has already happened.
-- Douglas Adams, The Restaurant at the End of the Universe
3 May
3 May
9:55 a.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
There is a theory which states that if ever anyone
discovers exactly what the
Universe is for and why it is here, it will instantly disappear and be
replaced by something even more bizarre and inexplicable.
There is another theory which states that this has already happened.
-- Douglas Adams, The Restaurant at the End of the Universe
There is a theory which states that if anyone ever learns how to use
all of emacs, it will instantly disappear and be replaced by something
even more bizarre and inexplicable.
There is another theory which states that that's how vi was invented.
2 p.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
On Tuesday 03 May 2005 13:55, James McDermott wrote:
There is a theory which states that if anyone ever
learns how to use
all of emacs, it will instantly disappear and be replaced by something
even more bizarre and inexplicable.
There is another theory which states that that's how vi was invented.
But emacs didn't disappear :-(
Arnold
--
There is a theory which states that if ever anyone discovers exactly what the
Universe is for and why it is here, it will instantly disappear and be
replaced by something even more bizarre and inexplicable.
There is another theory which states that this has already happened.
-- Douglas Adams, The Restaurant at the End of the Universe
10 May
10 May
8:50 p.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
Mario Lang <mlang(a)delysid.org> writes:
Intelligent completion for jack-{dis,}connect is now
done.
Really great.
--
Esben Stien is b0ef@e s a
http://www. s t n m
irc://irc. b - i . e/%23contact
[sip|iax]: e e
jid:b0ef@ n n
9:03 p.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
Paul Davis <paul(a)linuxaudiosystems.com> writes:
one lisp-extensible, editor-that-thinks-its-an-OS
I've never looked on emacs as an editor; it's an extensible computing
environment. I use it as my default shell and I really do everything
from it.
To compare it with an os is just non sense. It's a user space
application offering the most powerful environment to work in, in my
opinion and experience.
It needs a rewrite to get proper threading, though.
--
Esben Stien is b0ef@e s a
http://www. s t n m
irc://irc. b - i . e/%23contact
[sip|iax]: e e
jid:b0ef@ n n
11 May
11 May
3:20 p.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
Mario,
I'd like to try out the om.el emacs mode please (even though you say
it needs a polish ;)
But I can't find it on your site - any chance of a link?
James
12 May
12 May
3:51 a.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
James McDermott <jamesmichaelmcdermott(a)gmail.com> writes:
Mario,
I'd like to try out the om.el emacs mode please (even though you say
it needs a polish ;)
But I can't find it on your site - any chance of a link?
You need
http://delysid.org/emacs/osc.el
and
http://delysid.org/emacs/om.el
And it is untested, so expect it to fail and see it more as a coding
style review or such like. It uses a slightly outdated Om OSC namespace...
Maybe I'll find the time to update it to Om 0.1.0 today evening.
Another idea I had was to write a Om class for SuperCollider...
--
CYa,
Mario
27 Jun
27 Jun
7:46 a.m.
New subject: [linux-audio-dev] jack.el -- Run and monitor JACK from within Emacs
stefan kersten <steve(a)k-hornz.de> writes:
On Fri, Apr 29, 2005 at 05:19:17PM +0200, Mario Lang
wrote:
I just added set_rtlimits support to jack.el.
If you have set_rtlimits in your path, all you need to do to convince
jack.el to automatically use it is adding -R to your ~/.jackdrc,
jack.el will automatically prefix the usual jack command line with
a call to
set_rtlimits -r ...
If you don't have set_rtlimits in your PATH, you can customize
`jack-set-rtlimits-program'.
Finally, I am running jackd from my normal user account,
in the same environment as I am typing this email. :-)
--
CYa,
Mario
Done. If you have a ~/.jackdrc jack.el will
parse it and use it
for startup. You might want to add -v to your ~/.jackdrc then since
jack.el makes use of the continuus output to do realtime load display.
If you set `jack-use-jack-rc' to nil, jack.el will not attempt to use your
~/.jackdrc and do some (pretty crude yet) magic to construct proper args
based on your jack.el variable settings.
http://delysid.org/emacs/jack.el
cool, thanks!
6881
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linux-audio-dev@lists.linuxaudio.org
16 comments
7 participants
participants (7)
-
Andreas Kuckartz -
Arnold Krille -
Esben Stien -
James McDermott -
Mario Lang -
Paul Davis -
stefan kersten