Linux-audio-user March 2007

linux-audio-user@lists.linuxaudio.org

183 participants
203 discussions

by Sampo Savolainen

Quoting J M Needham <J.M.Needham(a)bath.ac.uk>: > I can't start Jack. I tried compiling jack 0.102, and it wouldn't, but > I'm > getting the following output from jack when attempting to start > it.10:36:32.209 Patchbay deactivated. > 10:36:32.298 Statistics reset. > 10:36:32.315 Startup script... > 10:36:32.315 artsshell -q terminate > 10:36:32.495 MIDI connection graph change. > 10:36:32.789 Startup script terminated with exit status=256. > 10:36:32.790 JACK is starting... > 10:36:32.790 /usr/local/bin/jackd -v -R -dalsa -dhw:0 -r44100 -p128 -n2 > -S > 10:36:32.798 JACK was started with PID=5787 (0x169b). ... > ++ jack_rechain_graph(): > client alsa_pcm: internal client, execution_order=0. > -- jack_rechain_graph() > 5787 waiting for signals What's the problem? It looks as if jack has started just fine.. I'm willing to guess that no client can connect to it, am I right? Judging from the command line for jackd, you've build jack by yourself and installed in /usr/local instead of /usr/ (where the ubuntu/debian package has installed jack). This means that you have two versions of jack installed. This causes huge problems. I suggest you "make uninstall" what you build, and rebuild it using ./configure --prefix=/usr (followed by whatever options you've chosen to use). Sampo

17 years, 11 months

[linux-audio-user] [ANN] Aldrin 0.11 (Terra)

by Leonard Ritter

Aldrin is an open source modular music sequencer/tracker for the GNU/Linux operating system. We're proud to announce the release of Aldrin 0.11 (Terra). This release is the third release of the "planet" release cycle. Aldrin has been transitioned entirely from wxWidgets to GTK+. Here is a short overview of the most relevant features introduced in this version: * The overall layout of the application has been reworked. Play controls and time bar have been merged into a transport bar. The Master slider is now on the right. Most toolbar buttons have been changed to tabs. * MIDI learn allows you to associate a parameter with a MIDI controller more intuitively by simply moving the controller you would like to bind to. * Various wording changes. * Numerous bugs fixed. Enjoy this new version and visit us on #aldrin on freenode.net, or subscribe to the Aldrin mailing list. http://www.leonard-ritter.com/announcement_aldrin_0_11_terra -- Leonard Ritter -- Freelance Art & Logic -- http://www.leonard-ritter.com

17 years, 11 months

[linux-audio-user] Running ecasound using jack-rack settings

by Ken Restivo

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I forgot who suggested that, but thanks. Turns out it'll be easy. The jack-rack file format is gzipped XML. The stanzas for each plugin look something like: <plugin> <id>1776</id> <controlrow> <lock>true</lock> <value>0.330097</value> <value>0.330097</value> </controlrow> <controlrow> <lock>true</lock> <value>0.797136</value> <value>0.797136</value> </controlrow> </plugin> So, I'll probably get something going in bash (cheap and dirty) or Python, to parse out the XML and build an ecasound command line. Looks like it'll be dead easy; will post it somewhere when I'm done. - -ken -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFF7FKqe8HF+6xeOIcRAlsgAJ4/arJ3vo797Cx4HNltu3zN6CDUYwCfZfpG 8LmzfQoEzTTmBVxy98qirpw= =jD+L -----END PGP SIGNATURE-----

17 years, 11 months

[linux-audio-user] audio/video player for theatre use anyone?

by Joern Nettingsmeier

hi *! is there an audio/video player that is suitable for theatre use? i'm thinking of a player that * allows me to bind media files to keys and play them on cue with just one keystroke; * has deterministically low latency (i.e. the time between the trigger and the actual start of playback), which probably means it needs the ability to buffer the first few seconds of each media file in RAM; * does not ever crash ;) * allows for dual-head setups with fullscreen video output on one head and user interface on the other head. midi/osc/dmx controllability would be a plus, but is not essential. limited codec support is not a problem, since the media are pre-produced and can be easily transcoded if necessary. i'm open to anything ranging from weird shellscript hacks and ramdisks to pd or gstreamer-based setups. jack support would be cool... thanks in advance, jörn

17 years, 11 months

[linux-audio-user] Jack problems.

by J M Needham

I can't start Jack. I tried compiling jack 0.102, and it wouldn't, but I'm getting the following output from jack when attempting to start it.10:36:32.209 Patchbay deactivated. 10:36:32.298 Statistics reset. 10:36:32.315 Startup script... 10:36:32.315 artsshell -q terminate 10:36:32.495 MIDI connection graph change. 10:36:32.789 Startup script terminated with exit status=256. 10:36:32.790 JACK is starting... 10:36:32.790 /usr/local/bin/jackd -v -R -dalsa -dhw:0 -r44100 -p128 -n2 -S 10:36:32.798 JACK was started with PID=5787 (0x169b). getting driver descriptor from /usr/local/lib/jack/jack_alsa.so getting driver descriptor from /usr/local/lib/jack/jack_dummy.so getting driver descriptor from /usr/local/lib/jack/jack_oss.so jackd 0.102.20 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. server `default' registered loading driver .. apparent rate = 44100 10:36:33.023 MIDI connection change. creating alsa driver ... hw:0|hw:0|128|2|44100|0|0|nomon|swmeter|-|16bit control device hw:0 configuring for 44100Hz, period = 128 frames, buffer = 2 periods ALSA: final selected sample format for capture: 16bit little-endian ALSA: use 2 periods for capture ALSA: final selected sample format for playback: 16bit little-endian ALSA: use 2 periods for playback registered builtin port type 32 bit float mono audio registered builtin port type 8 bit raw midi clock source = system clock via gettimeofday new client: alsa_pcm, id = 1 type 1 @ 0x80683a0 fd = -1 new buffer size 128 registered port alsa_pcm:capture_1, offset = 512 registered port alsa_pcm:capture_2, offset = 1024 registered port alsa_pcm:playback_1, offset = 0 registered port alsa_pcm:playback_2, offset = 0 ++ jack_rechain_graph(): client alsa_pcm: internal client, execution_order=0. -- jack_rechain_graph() 5787 waiting for signals I've noticed that jackd seems to be 0.102, but I've just run a make clean, reinstalled jackd (via apt) and it's still the same version. I'm running ubuntu 6.09. Any ideas?

17 years, 11 months

[linux-audio-user] Flac vs wavpack and float32 to pcm24 conversion tests

by Thorsten Wilms

Hi! I'm interested in losless compression of typical Jack audifiles for exchange. That means float32 sample format. Flac doesn't handle float, only pcm. wavpack handles both. So I was told that converting from (wav) float32 to pcm24 and back should be losless, if the float file is normalized. This would cut down on file-size by itself and allow to use Flac. I tested this using sndfile-convert and diff tells me there are differences. The file sizes are identical. diff did not report differences for a wav-unpacked file (staying in float32). Now I wonder if I did something wrong (I'm pretty sure the source file is normalised), or if there's a bug in sndfile-convert or if the differences are in the header. diff is a tool for text, after all. Anyways, file size results, didn't care about time: 48kHz, float 32: - original wav: 59.1 MB (my Aliethno track) - wavpack: 39.9 MB pcm24: - wav: 44.4 MB - wavpack: 32.3 MB - flac: 37.4 MB I used wavpack -h and flac -8 for best compression ratios. (Well, just saw wavpack has a -hh switch) -- Thorsten Wilms Thorwil's Creature Illustrations: http://www.printfection.com/thorwil

17 years, 11 months

[linux-audio-user] can't compile madwifi under 2.6.20-rt8

by Atte André Jensen

Hi I'm trying to but together a new realtime kernel (2.6.20-rt8), but the problem is I get this error when trying to make madwifi (the drive for my wlan card) I get errors about a missing declaration of SA_SHIRQ. I can make it allright on 2.6.18-rt7 and the new kernel otherwise works well (without wlan :-(), and I can compile madwifi just fine on vanilla 2.6.20. The problem occurs both on rt8 and rt7. I know this is very vague, but any suggestions regarding where to dig and how to file a bugreport to would be appreciated. -- peace, love & harmony Atte http://www.atte.dk | quintet: http://www.anagrammer.dk | compositions: http://www.atte.dk/compositions

17 years, 11 months

[linux-audio-user] DAW Export Specification

by Thorsten Wilms

Hi! As I made the survey here, I might as well present results ;) I think this is not only interesting for Ardour, but every application that does audio sequencing and mixdown. http://thorwil.affenbande.org/index.php/2007/03/04/ardour-export-01/ It's not necessarily finished, but some feedback would be very welcome at this stage. I wouldn't mind nitpicking or even advice on wording, grammar, style ;) -- Thorsten Wilms Thorwil's Creature Illustrations: http://www.printfection.com/thorwil

17 years, 11 months

[linux-audio-user] new releases

by Fons Adriaensen

New releases of JAAA and JAPA and the libraries they depend on are now available at <http://www.kokkinizita.net/linuxaudio/downloads> jaaa-0.4.1: bugfixes. japa-0.2.0: bugfixes, white and pink noise generators now built-in. clalsadrv-1.2.1: bugfixes. This version should now work correctly with ALSA's default multi-client device. clxclient-3.3.2: bugfixes. There are also some (essential) bugfixes to the HOA-NF filter code. -- FA Lascia la spina, cogli la rosa.

17 years, 11 months

[linux-audio-user] sf2cfg ... lost program?

by Bob van der Poel

Anyone know where I might grab sf2cfg. Apparently this program parses a sf2 file and creates the proper cfg files for timidity. I've looked just about everywhere I can think of to find the file ... apparently is was part of a kde multimedia pacakge, but not on my mandrive 2007 system. Or this there an alternate program? Thanks. -- Bob van der Poel ** Wynndel, British Columbia, CANADA ** EMAIL: bob(a)mellowood.ca WWW: http://www.mellowood.ca

17 years, 11 months

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Linux-audio-user March 2007