Linux-audio-user November 2007

linux-audio-user@lists.linuxaudio.org

131 participants
119 discussions

by Julien Claassen

Hi everyone! Despite the fact, that there's still some discussion about technical detail, which I fear might go on a bit longer, I put up something, so music can start and join the technical issues later on. :-) Go to Plutek's site: http://lau-cb.peterlutek.com See his README and then see the directory summers_sorrow You'll find there a: summers_sorrow.README (which you should read) and a track, named to Plutek's suggested naming-convention, which might actually have been suggested by someone else on the list. NOTE: I know, that there are two/three very small xruns audible, but for a starter it's enough. I'll have to look at my system and then I'll correct it soon enough. Kindest regards 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

17 years

ecasound + jack

by Mark Constable

I'm fiddling with some tools for my own needs and to see what may be useful for collab interaction. Ecasound, in theory, could be very useful because it's readily availble, gui/distro agnostic, and howto usage is easy to paste in email/im/wegpage etc which are good qualities for a general purpose tool. I've never had the patience to give it a fair go and frankly, every time I try, I end being frustrated (just like with Jack but that's ano...) Anyway, I found a snippet that had this recipe... 1. Start jack from qjackctl ( http://qjackctl.sourceforge.net/ ) 2. ecasound -G:jack,eca,recv -c -a:1 -i jack_generic,eca -o output.wav ecasound> engine-launch 3. Open qjackctl and connect the ports. If you don't want to do 3. every time, then use the patchbay feature of qjackctl and have it do it automatically. Pretty close to one thing I would like to do but I get this error no matter what -i (or -o) combo I try... ecasound: ERROR: [ECA-SESSION] : "Audio object 'jack_generic' does not match any of the known audio device types or file formats. and the same with jack_alsa and other similar options. Is it possible that my particular ecasound is compiled without jack support ? Would anyone have any comments about the usefulness of ecasound as a general purpose audio manipulation tool ? Is there another option that could be better ? --markc

17 years

LAU JAM : MIDI guide track

by Mark Constable

Here's a simple idea to help with some kind of guide track for collab songs, particularly for the experimental Subversion repo but also perhaps generally. If the core parts of a song like tempo and key, chorus verse bridge etc, are mapped out in a MIDI file with just about any MIDI sequencer then we could use the plain text version of that SMF (Standard Midi File/Format?) to checkout and commit to the SVN repo. http://midicomp.opensrc.org/ -> midicomp-0.0.2.tar.gz The idea would be that this MIDI track is specifically NOT part of song itself, so it doesn't become chock full of endless MIDI note tweaks, but remains fairly simple and acts as a guide track that when converted to binary MIDI format actually plays back simple parts using voice 0/1 (piano), however, it's most important role is as a precise editable TEXT guide for the song. So, as a simple "standard" it should always be called by the same filename and always play back using the first voice (piano). So in the svn repo, if anyone creates a new folder (essentially a new project) and checks in a file called "guide.txt" (with an optional guide.mid) then anyone else has at least a baseline (key, tempo) to start from and can manually edit the guide.txt (or use a good midi sequencer with comments) and thereby "guide" how the song evolves in a language that maps to real music as opposed to awkward words and discussion about the song layout or structure (useful but not very musically precise). Here is an example of the plain text version of an SMF... MFile 1 1 384 MTrk 000:00:000 Meta SeqName "Track 1" 000:00:000 Tempo 500000 000:00:000 TimeSig 4/4 32 99 000:00:000 On ch=1 note=c4 vol=70 000:00:096 On ch=1 note=c4 vol=0 000:00:096 On ch=1 note=d4 vol=70 000:00:192 On ch=1 note=d4 vol=0 000:00:192 On ch=1 note=e4 vol=70 000:00:288 On ch=1 note=e4 vol=0 000:00:288 On ch=1 note=f4 vol=70 000:01:000 On ch=1 note=f4 vol=0 000:01:000 On ch=1 note=g4 vol=70 000:01:096 On ch=1 note=g4 vol=0 000:01:096 On ch=1 note=a4 vol=70 000:01:192 On ch=1 note=a4 vol=0 000:01:192 On ch=1 note=b4 vol=70 000:01:288 On ch=1 note=b4 vol=0 000:01:288 On ch=1 note=c5 vol=70 000:02:000 On ch=1 note=c5 vol=0 000:02:000 On ch=1 note=d5 vol=70 000:02:096 On ch=1 note=d5 vol=0 000:02:096 On ch=1 note=c5 vol=70 000:02:192 On ch=1 note=c5 vol=0 000:02:192 On ch=1 note=b4 vol=70 000:02:288 On ch=1 note=b4 vol=0 000:02:288 On ch=1 note=a4 vol=70 000:03:000 On ch=1 note=a4 vol=0 000:03:000 On ch=1 note=g4 vol=70 000:03:096 On ch=1 note=g4 vol=0 000:03:096 On ch=1 note=f4 vol=70 000:03:192 On ch=1 note=f4 vol=0 000:03:192 On ch=1 note=e4 vol=70 000:03:288 On ch=1 note=e4 vol=0 000:03:288 On ch=1 note=d4 vol=70 001:00:000 On ch=1 note=d4 vol=0 001:00:000 Meta TrkEnd TrkEnd --markc

17 years

Re: [LAU] LAU collaboration coordination?

by Ken Restivo

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thu, Nov 15, 2007 at 07:04:59PM -0500, plutek wrote: > > >> >http://wiki.creativecommons.org/CcHost > >> > > >> >Looks like the "killer web app" has already been written, and it is GPL, and someone just needs to install it and then let's start jamming! > >> > >> that "someone" might well be me -- just reviewed my server bandwidth/storage limits, and i *think* it should be fine. anyone care to throw out a quick estimate of what the server loads might look like? i'd prefer to stay away from lossy formats. > >> > > > >Awesome! > > > >Well it looks like there might be a convergence upon FLAC/44.1k/16bit for tracks/loops/samples. You could always limit it to ogg instead of FLAC if you get too close to your limits, or find someone else to take over hosting it if it gets to be an expense. > > > >I haven't been counting, but I'd guess that about a dozen people have expressed interest. I don't know to estimate how much material everyone would upload and how soon. I have a whole hard disk full of unfinished loops, riffs, beats, and samples, which I'm ready to start contributing as soon as the system is alive. > > > >I'm not sure how to estimate how much use a Linux-only, BY-SA cchost music collaboration site would get, but I reckon that only accurate way to find out is to push the thing live and see what happens. > > i did some quick "back-of-an-envelope" figuring while riding around on the bus today, and came up with this worst-case scenario (well... BEST-case, really.... he-he..): > > assume 44.1kHz/32-bit - that's around 11MB/track/min > assume we want to produce a complete record (~60min) - that's about 2/3 GB per track > assume we're going 24 tracks deep - that's about 16GB > assume we need some headroom (text files, presets, screenshots, whatever) - call it 20GB instead > assume we have 20 users, who ALL upload AND download EVERYTHING twice every week - that's somewhat less than 4TB/mo > > SO........ > 20GB storage > 4TB/mo. bandwidth > > and it'll almost certainly end up being a LOT less than that. > works for me. > > i can probably set this up within a week or two. > i would host it at whatever-name-we-choose.peterlutek.com > > for "whatever-name-we-choose", i was thinking of "laum" (LAU-Music), until i ran into www.inside.net/plugin/laum.htm and laum.univ-lemans.fr > > anyone else have any bright ideas for the name? It's hard to beat "LAU". > > also, do we in fact have concensus around the idea of using CcHost? > I think a working site with active users is much more likely to happen-- and would be much more useful-- than "consensus". I'd suggest getting it running, putting it out there, and finding out who uses it and what their feedback is. - -ken -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFHPOlCe8HF+6xeOIcRAoVlAJ40BVZPU6Wno24s19MbhcH5tOwJAQCgj2hS c5HEaGbPV8bQlAFcxJ/jGAY= =V3gT -----END PGP SIGNATURE-----

17 years

A virtual LAU chillout band

by Mark Constable

On Friday 09 November 2007 17:12:16 Charles Linart wrote: > A virtual LAU band would be super cool. Totally agree. Just putting in my bid for anyone interested in cooperating with a downbeat chillout electronica piece under a GPL license (where the "source" components that make up the piece are also available) ? Cycle-of-fifths and suspended 4ths sequences with lots of strings and pads, sweeps galore, real drums n bass, no doof. --markc

17 years

high quality time strech

by Atte André Jensen

Hi I have a live recording (acoustic jazz) where the engineer messed up, so I need to copy some audio from one part to another. The problem is that the band drifted in tempo during, so I'm looking for a high quality time stretch that works under linux. What are my options and what would you guys recommend? -- peace, love & harmony Atte http://atte.dk | http://myspace.com/attejensen http://anagrammer.dk | http://modlys.dk

17 years

Re: [LAU] Superbonus.project

by Philippe Hezaine

17 years

Superbonus.project

by Philippe Hezaine

17 years

LAC2008 paper submission form now open!

by Martin Rumori

Dear all, The online form for the submission of papers for LAC2008 is now open! Authors please use the conference management system at http://lac.linuxaudio.org/openconf The deadline for paper submissions is 1 Dec 2007. We invite submissions of papers addressing all areas of audio processing based on Linux and open source software. Papers can focus on technical, artistic or scientific issues and can target developers or users. For details please refer to the call for papers below and on the web at http://lac.linuxaudio.org We would also like to remind you of the call for music. We are looking for music that has been produced completely or mostly under Linux and/or with open source software from every genre: compositions, Electronica, Chill-Out, Ambient, etc. The deadline for music submissions is 1 Dec 2007. On behalf of the LAC2008 organisation team, sincerely, Frank Barknecht and Martin Rumori

17 years

Does anyone keep records of songs published through this email list?

by Mark Knecht

Hi, I understand this is a very long shot but I wonder whether anyone happens to have kept a list of all the songs offered for download on this email list? I'm interested in a couple of songs that were offered for download sometime last year. I cannot remember who published them, nor can I actually remember much specific about them other than one of them reminded me of something Bowie might have done. I was hoping that if anyone has kept a song list I might recognize it from the title. I am attending a birthday party on New Year's Eve. One of the requirements for attending is that we bring two pieces of music that we like and that it is very unlikely anyone at the party has ever heard. I thought it might be fun to review some of what I've heard through Linux-Audio-Users and to maybe take what I like best. It would of course be very cool if someone has a web site where the actual audio files could be downloaded but I'm sure that's too much to ask. Anyway, thanks in advance. Cheers, Mark

17 years

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Linux-audio-user November 2007