Linux-audio-user June 2011

linux-audio-user@lists.linuxaudio.org

116 participants
128 discussions

Jack vs. Alsa, PianoTeq demo: Alsa wins!

by Aaron Krister Johnson

Hi all-- I'm wondering if anyone else has experienced this: I'm considering purchasing PianoTeq, but I wanted to try the demo. It seems to work better with just the alsa driver than it does with jack, a reversal of the usual situation. I tested this several times by playing fast glissandi on the default piano preset. Each time, my little EEE-PC netbook under jack choked with xruns and a brief silence while PianoTeq 'reset' itself, but Alsa alone chugged away with no xruns unless there was an extreme amount of load.... I'm wondering if anyone can comment on this. It seems odd, especially since the jack developers claim jack adds no latency by itself to the picture in any situation---so, do we have a situation where the code is better written for the alsa driver than for jackd? It seems we do, in this case.... Best, AKJ -- Aaron Krister Johnson http://www.akjmusic.com http://www.untwelve.org

13 years, 6 months

Music made with Linux: "Heavy Head"

by Roberto Suarez Soto

Hi, here's another track recorded and mixed with Linux: "Heavy Head", instrumental guitar rock: http://dl.dropbox.com/u/1496559/Heavy_Head_by_Xouba.mp3 The tech specs: used a Parker PM20 Pro guitar, a Yamaha RBX 374 bass and Hydrogen for the drums. A Behringer V-Amp 2 to process the guitar sound. Ardour to mix it all. As you'll hear, the mix is quite dirty. And that's without counting the several misses and hiccups in my playing :-) So that's why I've posted the Ardour project here: http://ubuntuone.com/p/wv6/ It's a 256MB tar.bz2 archive of the directory project, as several people recommended in the list (thread "Sharing of Ardour projects"). I forgot to add the Hydrogen file in the bundle, so you can download it from here: http://ubuntuone.com/p/wvE/ Why am I posting this? To see if some merciful soul with more knowledge can do something with it. Take parts of it for your own projects, remix it, turn it upside down, whatever. It's yours to modify and tweak without end. Just tell me if you use it, so I can gloat over it :-) All this is published under a Creative Commons license. See here for more details: http://creativecommons.org/licenses/by-nc-sa/3.0/ Have fun, and thanks in advance. -- Roberto Suarez Soto There's a man goin' round Taking names

13 years, 6 months

Repository/list of scripts/C>LI utilities

by S. Massy

Hello, list, >From time to time, people release simple utilities and scripts on this list, things like aj-snapshot, jackctl.py, and many, many more. Because I'm totally disorganised, I keep these announcement in my LAU mbox, either to keep the URL around, or because I don't have time to investigate them but feel they might come in useful at some point. From time to time, I also see queries such as "what was that script I remember using several months ago", or "does any one know of a simple way to do foo". Anyway, I thought it might be useful to have a place (perhaps a wiki) where we could collect such information for easy reference. Does such a place exist already? Is there an already existing site/wiki where this might be added? Cheers, S.M. --

13 years, 6 months

Code block is not properly closed

by mark hadman

This one line of code runs fine: ~meson_buffers = "/home/mark/share/SuperCollider/sounds/meson/*".pathMatch.collect {|file| Buffer.readChannel(s,file,channels: [0]);}; but when I try to put it in brackets (either on its own or as part of a larger code block), like this: ( ~meson_buffers = "/home/mark/share/SuperCollider/sounds/meson/*".pathMatch.collect {|file| Buffer.readChannel(s,file,channels: [0]);}; ) I get the error message 'Code block is not properly closed'. I'm not having this trouble with any other line of code in my program. Can anybody see what the problem is? I'm using Gedit 2.30.4 On 16 June 2011 21:11, Philipp <hollunder(a)lavabit.com> wrote: > Hi there, > in a discussion today someone asked me where those 60 degrees necessary > for the production of phantom images come from and I couldn't deliver a > satisfactory answer. Someone tried to explain to me that it has > something to do with wavelengths or whatever but couldn't explain it in > a way that anyone would understand. > > My best guess is that with a larger angle the head gets in the way and > the ears have an easier time telling the signals apart. Also, I guess 60 > degrees is a rough estimate and chosen because this leads to a nice > Equilateral triangle. > > So, what's the real reason behind those 60 degrees? > > Regards, > Philipp > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user >

13 years, 6 months

A script to slide every regions, markers, tempi, meters, automations, and so on in an Ardour session

by Aurelien

Hi! I've had to move a whole session right, to make some place at the beginning, but this session was full of markers, automations, tempi, meters, and so on. I was thinking about switching to A3, but unfortunately, this session couldn't be opened by A3 (which is not the aim of A3 by now). So I wrote a litlle bash/sed script that allows one to move every region, automation, marker, tempo, meter, along a certain amount of bars (first meter). It might be a bit crappy, and could be better handled with something using xml properties, but I hadn't time to enter that step. Actually, it's not really a solution, as one can move only ALL REGIONS, and not only the ones placed over a certain time. For this, there are things I couldn't figure out in the time I had to! Any comments appreciated, any enhancement too! PS: I didn't subscribe to any ardour list. If you do, don't hesitate to post that script on them. -- Aurélien

13 years, 6 months

Ardour2 session doesn't find the regions

by lorenzo cecchi

Hi all, as i wrote in the object i have a problem with Ardour 2.8.11 (on Ubuntu 11.04). It suddenly doesn't recognize the regions of my project (it happens reopening a session closed without problems yesterday) The log: *[WARNING]: A sound file is missing. It will be replaced by silence.* *[ERROR]: Filesource: cannot find required file (kick out-1.wav)* and so on for all the regions and the audiofiles. In the interchange folder i still have all the audiofiles, and i can hear them with a player, but when i try to drag them into the ardour project it say *SndFileSource: cannot open file "/home/lore/Desktop/stage/Krisp/edit" for reading (File contains data in an unknown format.)* *[ERROR]: could not open * */home/lore/Desktop/stage/.... /gtr_exogino_solo_4_0_bounce_5.wav* I've tried to change the name of the regions, but with the same result. then i try to put that audiofiles in a new session and it gave me no problems in importing, so the problem comes only in the native project. Has anyone an idea about that or have had the same problem? thank you in advance for answering! ps. i don't know if it is exactly the right place to post this question, i even wrote it on ardour forum.. ciao! lorenzo

13 years, 6 months

soundcard muted

by Emanuel Rumpf

Every time I'm starting the machine, the front channel (of the internal intel_hda) is muted and volumed 0 I've tried to fix it with alsactl store - no success Is that some pulseaudio magic ? Any suggestion how to fix it ? Thanks. -- E.R.

13 years, 6 months

Updates of zita-rev1 and zita-at1

by Fons Adriaensen

Hello all, Some updates now available at <http://kokkinizita.linuxaudio.org:/linuxaudio/downloads> zita-rev1-0.2.1 * Nasty bug detected and fixed by Robin Gareus (thanks !) zita-rev1-0.2.1 and zita-at1-0.2.2 * Changed looks at bit (rotary knobs look different). * Added -pthread to linker flags, required for the GNU gold linker (suggested by Alessio Treglia, thanks !). * s/kokkinizita.net/linuxaudio.org/ everywhere. Ciao, -- FA

13 years, 6 months

flamestudios gig samples

by Alexandre Prokoudine

Hi, In 2008 Gary Campion released a bunch of self-recorded GIG samples under GPL and made them available at flamestudios.org. Recently I discovered that last year (or so) the site went offline, and only a handful of those samples is available since then. Since I had very nearly the whole collection or at least the most of it, I thought I'd share it via torrents. The links to torrent pages are available at LinuxSampler forum: http://bit.ly/kjSXAX I also have several free samples from http://www.westgatestudios.com (acoustic guitars and trumpets) that are not available anymore, I'm just not sure if it's OK to share them. Let me know :) Alexandre Prokoudine http://libregraphicsworld.org

13 years, 6 months

New Album Created with Linux

by Brian Bergstrom

Hey all, My band, Chosen Robot, has released our first full length album, Terrorvision. It is some funkadelic rock n roll type stuff with super heroes flying around. I play the the keyboards(and guitar) in the band and produced the samples and synth sounds on a 64 studio laptop running AMSynth and Specimen. The whole album was then mixed using Harrison's Mixbus/Ardour. http://www.chosenrobot.com/terrorvision (warning: page contains flash CDBaby widget.) Cheers, Brian

13 years, 6 months

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Linux-audio-user June 2011