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Jconv reverb

Hi all,

I'm currently mixing my first location recording, and was struggling to get a nice, gentle, reverb. The default plugins weren't suiting my recording (or I don't know how to properly use them!).

I've just installed Jconv from Fons Andriaensen and it sounds absolutely superb !!!!!

As far as I can tell, Jconv is very similar to jace, which doesn't seem to currently be available for download.

Jconv is here http://www.kokkinizita.net/linuxaudio/

It is a stand-alone jack app, so just use an insert/bus to send the audio from ardour.

(p.s. there are a couple of dependent packages, plus you will probably need to uncomment "CPPFLAGS += -DNOAMBIS=1" in the Jconv Makefile)

The README files and example configs should be enough to get up and running.

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Jconv reverb

hello,
I just tried install and run jconv reverb. Installing was going well, but I am not able to connect jconv to the jack.
If I run jack first I got this message:

64studio:/home/mira/Desktop/jconv_waves# jconv /home/mira/Desktop/chapel.conf
jackd 0.109.2
Copyright 2001-2005 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details

JACK compiled with System V SHM support.
loading driver ..
apparent rate = 48000
creating alsa driver ... hw:1|hw:1|256|2|48000|26|26|nomon|swmeter|-|32bit
control device hw:1
the playback device "hw:1" is already in use. Please stop the application using it and run JACK again
cannot load driver module alsa
no message buffer overruns
Can't connect to JACK.

And when I am running jcolv first and then triing run jack I am getting this message:

21:34:13.406 Patchbay deactivated.
21:34:13.451 Statistics reset.
21:34:13.502 Startup script...
21:34:13.502 artsshell -q terminate
21:34:13.517 MIDI connection graph change.
can't create mcop directory
Creating link /home/mira/.kde/socket-64studio.
21:34:13.749 Startup script terminated with exit status=256.
21:34:13.749 JACK is starting...
21:34:13.749 /usr/bin/jackd -R -dalsa -r48000 -p256 -n2 -D -Chw:1 -Phw:1 -i26 -o26
21:34:13.751 JACK was started with PID=8585 (0x2189).
jackd 0.109.2
Copyright 2001-2005 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK compiled with System V SHM support.
loading driver ..
apparent rate = 48000
creating alsa driver ... hw:1|hw:1|256|2|48000|26|26|nomon|swmeter|-|32bit
control device hw:1
configuring for 48000Hz, period = 256 frames (5.3 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 32bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit little-endian
ALSA: use 2 periods for playback
21:34:13.952 MIDI connection change.
21:34:15.967 Server configuration saved to "/home/mira/.jackdrc".
21:34:15.968 Statistics reset.
21:34:15.984 Client activated.
21:34:15.984 Post-startup script...
21:34:15.984 /usr/local/bin/ardourvst
wine: cannot find '/usr/local/lib/ardour2/ardour_vst.exe.so'
21:34:16.276 Post-startup script terminated with exit status=512.
21:34:16.278 Audio connection change.
21:37:50.509 Client deactivated.
21:37:50.510 JACK is stopping...
jack main caught signal 15
no message buffer overruns
21:37:50.529 JACK was stopped successfully.
21:37:50.529 Post-shutdown script...
21:37:50.529 killall jackd
jackd: no process killed
21:37:50.735 Post-shutdown script terminated with exit status=256.
21:38:28.119 Startup script...
21:38:28.119 artsshell -q terminate
can't create mcop directory
Creating link /home/mira/.kde/socket-64studio.
21:38:28.365 Startup script terminated with exit status=256.
21:38:28.365 JACK is starting...
21:38:28.365 /usr/bin/jackd -R -dalsa -r48000 -p256 -n2 -D -Chw:1 -Phw:1 -i26 -o26
21:38:28.374 JACK was started with PID=9681 (0x25d1).
jackd 0.109.2
Copyright 2001-2005 Paul Davis and others.
jackd comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK compiled with System V SHM support.
loading driver ..
apparent rate = 48000
creating alsa driver ... hw:1|hw:1|256|2|48000|26|26|nomon|swmeter|-|32bit
control device hw:1
the playback device "hw:1" is already in use. Please stop the application using it and run JACK again
cannot load driver module alsa
no message buffer overruns
21:38:28.404 JACK was stopped successfully.
21:38:28.405 Post-shutdown script...
21:38:28.405 killall jackd
jackd(9540): Operation not permitted
jackd: no process killed
21:38:28.612 Post-shutdown script terminated with exit status=256.
21:38:30.387 Could not connect to JACK server as client. Please check the messages window for more info.

I am using first configuration demo file "chapel.conf"

I don't know what I am doing wrong.

Thanks for any advice.

mirami
Asus M6Va,CPU 2GHz, RAM 2GB, 64studio 32bit 2.1 pre14

  • By mirami at 04/22/2008 - 19:50
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couple of things to check:

1. Have you downloaded the chapel.wav impulse file? http://www.kokkinizita.net/linuxaudio/downloads/chapel.wav

(I've put this file in the same directory as the .conf files)

2. Have you edited the .conf file to change the hard-coded directory containing the impulse file?

3. Jack possibly doesn't start because there is a stuck jconv process in the system. suggest ps -A and kill

  • By stevea at 04/22/2008 - 21:33
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Thanks Stevea

It was even more trivial. I was logged as root in terminal window when tried to run jconv... :-(
Anyway you are right this is nicest reverb in linux I've heard.
Hope it get some nice frontend in the future for quicker set up.
Thank you

mirami
Asus M6Va,CPU 2GHz, RAM 2GB, 64studio 32bit 2.1 pre14

  • By mirami at 04/24/2008 - 16:02
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