Linux-audio-user December 2010

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[LAU] state of multimedia FOSS tools

by Kim Cascone

http://libregraphicsworld.org/articles.php?article_id=26

15 years, 1 month

[LAU] Night time wanderngs

by Julien Claassen

Nighty chaps! Yes it is almost 3am and I just had a small idea. It came to me, that instruments are not always, what they are generally made out to be. So here's my new Wurlitzer and a tiny little thing, I hope you enjoy it. It was just recorded on the spur of the moment. No metronome used, nothing. Basically, it just arrived and I played it unfiltered, just capturing the mood. :-) http://juliencoder.de/q/wurli.ogg Enjoy! Nighty night :-) Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net the Linux TextBased Studio guide ======= AND MY PERSONAL PAGES AT: ======= http://www.juliencoder.de

15 years, 1 month

[LAU] potential Crystal softsynth LV2 port

by allcoms

I'm sure some of you here would've heard of or used the Crystal softsynth, which has an excellent rep as being one of the best free VST/AU softsynth plugins available http://www.greenoak.com/crystal/indexDesktop.html Well it looks like it could be coming to Leenooks now as I posted to the crystal mailing list yesterday with a bunch of questions and additionally suggested an LV2 port would be great but I wasn't expecting the author to say he would consider it, which is what happened as he says he's going to look into doing an LV2 port! Batz Goodplugin (sorry Batz - that's the last time I'll use a derivative of your enviable name unless you say its OK in which case I'll carry on FOREVER!) danboid

15 years, 1 month

[LAU] seeking "fresh" way to process/shape human whisper in real-time

by ico＠vt.edu

Hi all, I've been battling a kind of a dsp-writer's-block as of late. Namely, I am dealing with a project where (at least as of right now) I would like to explore human whisper and its percussive/rhythmic power. This would take place in an ensemble of "voices." I am also looking to combine whisper with some sort of DSP. Obviously vocoder comes as one of the obvious choices but it sounds IMHO cliche and as a result I would like to avoid it as much as possible (unless I can somehow come up with a cool spin on it which I haven't yet). I also tried amp mod, additive, filtering, etc., but none of these struck me as something interesting. I do think delays will be fine in terms of "punctuating" the overall pattern but I think this should take place at the end of the DSP chain. Granular synthesis is also a consideration but I've done so much of it over the past years I am hoping to do something different. So, as of right now I have: 1) whisper 2) ??? 3) delays 4) profit! :-) Given the mental constipation I have been battling particularly over the past couple of days, I wanted to turn to you my fellow LA* enthusiasts for some thoughts/ideas/inspiration. Your help would be most appreciated and I will gladly credit your ideas in the final piece. Many thanks! Ivica Ico Bukvic, D.M.A. Composition, Music Technology Director, DISIS Interactive Sound and Intermedia Studio Assistant Co-Director, CCTAD CHCI, CS, and Art (by courtesy) Virginia Tech Department of Music Blacksburg, VA 24061-0240 (540) 231-6139 (540) 231-5034 (fax) ico.bukvic.net

15 years, 1 month

[LAU] upwards compression

by Fabio

there doesn't seam to exist any compressor/plugin for Linux that does it?

15 years, 1 month

Re: [LAU] upwards compression

by Fabio

Em Sat, 25 Dec 2010 15:00:06 -0500 Jeremy <jeremybubs(a)gmail.com> escreveu: > On Sat, Dec 25, 2010 at 2:45 PM, Fabio <capoeirista(a)arcor.de> wrote: > > > Em Sat, 25 Dec 2010 13:48:07 -0500 > > Jeremy <jeremybubs(a)gmail.com> escreveu: > > > > > It seems like you would want to do normal compression with a very > > > low threshold (about the noise level) and a negative ratio. > > > > > > then you end up with a curve like > > > > > > \ > > > / \ > > > / \ > > > > > > Then you can add that into your original signal, to get something > > > approximating "upward compression". > > > > > > Also, perhaps the expander from tap-plugins might do what you > > > want: http://tap-plugins.sourceforge.net/ladspa/dynamics.html > > > > > > <http://tap-plugins.sourceforge.net/ladspa/dynamics.html>Jeremy > > > > > > On Sat, Dec 25, 2010 at 12:40 PM, Fabio <capoeirista(a)arcor.de> > > > wrote: > > > > > > > Em Sat, 25 Dec 2010 17:09:54 +0000 > > > > Q <lists(a)quirq.ukfsn.org> escreveu: > > > > > > > > > upwards compression does it by boosting the volume of the > > > > > quietest signals -- compressing from the bottom up. This > > > > > parallel processing produces upwards compression as Joern > > > > > expounded on my original statement > > > > > > > > ok, thats what i want > > > > > > > > perhaps my math is to weak...lol > > > > > > > > I simply will try it out. > > > > > > > > just giving more info: amateur-singer, half an hour of time, > > > > lives long from here. we recorded her voice, but in the lower > > > > parts she sang very quiet, so with normal compression i would > > > > compress 95% of what is correct only to add more gain to those > > > > parts. so i thought about this option instead. probably i > > > > should simply elevate volume in those part instead. > > > > _______________________________________________ > > > > Linux-audio-user mailing list > > > > Linux-audio-user(a)lists.linuxaudio.org > > > > http://lists.linuxaudio.org/listinfo/linux-audio-user > > > > > > > > > > that's not possible > > > > > > curve has to be like this: (hope this will be look the way it looks > > like here) > > > > . > > . > > . > > . > > . > > . > > . > > > > > > but like i said, none of the compressors i have installed can do > > this (and I have a lot) > > > > Well, normally, you might have a ratio like 3:1. What you are > demonstrating is a ratio of 1:3 or the like. I was suggesting a > ratio of -1:3 or so. I'm not sure if compressors have options to do > a 1:3 ratio, or -1:3 ratio, but they would look like you and I > suggested (respectively). > > Jeremy they can't....neither one neither the other but i had a look at your link from the tap-plugins, and it looks like in tap-dynamics i can create a function like this. thanks

15 years, 1 month

[LAU] Best wishes for the Holidays

by Ivica Ico Bukvic

Dear Friends, On behalf of Linuxaudio international consortium (http://linuxaudio.org), DISIS (http://disismusic.vt.edu), and L2Ork (http://l2ork.music.vt.edu), please allow me to use this opportunity to wish you very best for the Holidays. May you have many more seasons of merry music making using an ever-growing array of formidable FOSS tools and solutions! Best wishes, Ivica Ico Bukvic, D.M.A. Composition, Music Technology Director, DISIS Interactive Sound & Intermedia Studio Director, L2Ork Linux Laptop Orchestra Assistant Co-Director, CCTAD Virginia Tech Department of Music Blacksburg, VA 24061-0240 (540) 231-6139 (540) 231-5034 (fax) ico.bukvic.net

15 years, 1 month

[LAU] Batch normalising wav files

by Q

Hello I'm wanting to batch process a bunch of wav files, normalising them all to -0.3 dBFS. I thought I could do this with normalize/normalize-audio, but it doesn't look to be possible. The man page suggests that simply analysing the file and raising the level so the loudest peak is 0 dBFS isn't normalising, which is news to me: " --peak Adjust using peak levels instead of RMS levels. Each file will be adjusted so that its maximum sample is at full scale. This just gives a file the maximum volume possible without clipping; no normalization is done." That would be okay, except I want them normalising to something other than full scale. Is there a quick and easy way to do this? I normally avoid command line stuff as I waste so much time trying to figure out how to get one little one-off task done that I could have done it manually in the meantime. However, although I've wasted a lot of time so far, I have so many files to process that I'm willing to give it a shot. Thanks in advance Q

15 years, 1 month

Re: [LAU] [LAD] [ANN] MusE 2.0alpha

by Ray Rashif

On 24 December 2010 01:10, Robert Jonsson <spamatica(a)gmail.com> wrote: > Hello Philipp, > > 2010/12/23 Philipp Überbacher <hollunder(a)lavabit.com> >> building: >> you seem to have switched to cmake but half way it seems. The build >> instructions are rather weird and unusual for cmake. >> creating build, cd'ing there and invoking cmake .. is not how it's >> usually done. >> Usually you configure using 'ccmake .' when you build manually or >> -DCMAKE_BLA (which you do use) for automatic building. >> A DESTDIR is a good thing to have since often enough software >> is build in a chroot and hence "make install" as root will fail if it >> tries to install into the real /usr. > > I'm not convinced there is a usual way. Though you are right we are > beginners with cmake and it can probably be improved. > ccmake is just a curses frontend is it not? You can try to convince me but > instinctively I think we should steer clear of gui tools for building. The usual way: cmake . The clean way: mkdir build cd build cmake .. This is to keep the build separate and maintain a clean source directory. ccmake is a convenience for us, as well as cmake-gui. -- GPG/PGP ID: B42DDCAD

15 years, 1 month

Re: [LAU] Batch normalising wav files

by Julien Claassen

Hello again! Yes then Db in ecasound means dbfs, at least to the best of my knowledge. You have seen some files normalised by me and they certainly are as loud as it can go. :-) Noisily yours Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net the Linux TextBased Studio guide ======= AND MY PERSONAL PAGES AT: ======= http://www.juliencoder.de

15 years, 1 month

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Linux-audio-user December 2010