Linux-audio-user November 2012

linux-audio-user@lists.linuxaudio.org

104 participants
103 discussions

Re: [LAU] looking for command-line/scriptable mastering software

by grekimj＠acousticrefuge.com

BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px; } I briefly considered going/staying fixed point for processors, but I didn't see a real benefit. Obviously, you need to take a coefficient like 0.93 and scale it up by some factor of 2^n or whatever so it can exist as an integer. And then there's more scaling down in the end. So, it seemed that all the fussing around might negate any benefit. In the end, you only have so many bits to work with. I was happy with what I was hearing with 64 float so I left it as is. Interesting test! On Fri 23/11/12 7:47 AM , Fons Adriaensen fons(a)linuxaudio.org sent: On Fri, Nov 23, 2012 at 07:01:09AM -0600, grekimj(a)acousticrefuge.com [1] wrote: > There are a couple of outstanding (commercial) fixed point filters > out there, by the way. Yes, but the question is: are they outstanding because they are fixed point, or because they have been designed well generally, with the fixed point aspect just being marketing ? A few years ago there was a very large scale listening test (involving hundreds of 'trained' listeners), comparing the quality of 'HD' DVD-A and SACD recordings reproduced directly, and the same recordings reduced to CD quality. There's an engineering report about it in the AES library. The first result was that essentially nobody was able to identify which was which. The second result was that most listeners actually preferred the HD recordings to CD versions of the same music, same performers, but not he same recording. That seems to be a contradiction, but it isn't. The simple fact is that those HD recordings, targeting a specialist audience, have been made with much more care and expense than the average CD. They are actually better recordings, but *not* because they are 'HD'. I'm pretty sure something similar is involved with e.g. the fixed point filters you refer to, and a lot of similar things. Just going for quality doesn't sell things, because most people won't hear the difference. But adding a bit of pseudo-science helps, in particular if a large part of the target audience has no technical or scientific background anyway and is not capable of separting facts and fiction. Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow) Links: ------ [1] mailto:grekimj@acousticrefuge.com

12 years

VideoRecOSC

by nescivi

Hiho, since I couldn't find any application that did this... VideoRecOSC is a small program that records video from either a camera image or a video file, and is controlled via OSC. Updates of the frame counts and current filename are sent out via OSC. This tool was created in order to be able to synchronise video and sensor data recording. https://github.com/sensestage/videorecosc sincerely, Marije

12 years

looking for command-line/scriptable mastering software

by Grekim Jennings

Peter Lutek <peter at peterlutek.com> wrote: > From: Eric Wong <normalperson at yhbt.net> > > > So far, I've been writing scripts+makefiles to drive SoX. I use > > the SoX "trim" effect to split out sections, process the sections > > indivdually, and rejoin them (often with fade); but I'm wondering if > > there's something similar for command-line users which already > > exists. > > hey eric... you should definately look at Mixer4, written by Grekim > Jennings: http://www.acousticrefuge.com/mixer4.htm Hi Peter, source code doesn't appear to be available, nor plugin (LADSPA/LV2) support... (I'm a Free Software supporter and refuse to rely on software I can't inspect or improve) Hi Eric, Feel free to email me. Currently in Mixer4 there is a trim feature to remove time off the beginning and and of a track. All automation times stay relative to the untrimmed track as you'd expect. I've been wanting to add a feature to extract audio from within very large soundfiles. This should not be hard to do and if it would be helpful to you I could work on it very soon. The program started out without effects, but I quickly became excited about coding them and I am very happy with them. They are all 64 bit double precision. As mentioned the software is not open source, but is as bug free and professional as I can make it. Cheers. Grekim

12 years, 1 month

OT: Network Music Festival OPEN CALL - *DEADLINE EXTENDED*

by Holger

FINAL CALL: The Network Music Festival OPEN CALL DEADLINE has been extended to *25th November 2012. * * * Information follows: *Network Music Festival // 22-24 February 2013 // Birmingham (UK)* * * A weekend of hi-tech musical performances and workshops that presents new musical forms and ideas where networking is integral to the aesthetics of creation or to the performance practice. The network music festival will take place 22-24 February 2013 in Birmingham (UK) in the heart of Birmingham’s creative community. Presenting an exciting and diverse line-up of network artists including, laptop performances, live coding, collaborative environments for music making, sound installations, workshops and everything else in between, the Network Musical Festival boasts an international line-up including some of Birmingham’s best home-grown hi-tech musical performers. *Open Calls* * * *DEADLINE FOR ALL SUBMISSIONS: 23 November 2012* * * The Network Music Festival 2013 is now inviting submissions for *Performances (Concert or Club), Installations, Talks, Workshops* and*'Other'.* The Network Music Festival aims to showcase a broad spectrum of musical and sound related works, research and participatory activities which use networking as part of their aesthetic, creation or performance practice. Network Music Festival would like to invite submissions in the categories of Performance, Installation, Talk and Workshop. We also include an 'Other' category where you are free to submit proposals that fall outside of the previous categories but that you feel would be an appropriate addition to the festival programme. http://networkmusicfestival.org/open-call/ <http://networkmusicfestival.org/open-call/%22%20%5ct%20%22_blank> * * *// PERFORMANCES //* * * Performances where networking is an integral part of the aesthetics or performance practice. This could include: * laptop ensembles/orchestras/bands * mixed networked instrumental and/or visuals and electronic groups * performances which use the internet as part of the performance * hardware networks, communicating gadgets * multi-location and geographically distributed performances * any other performances that use networking in some form Proposed performances should be around 10-30 minutes in duration. *// INSTALLATIONS //* * * Sound installations which use networking as central to the aesthetic and/or creation of the work. This could include: * static installations * installations which explore the surrounding area * interactive installations using the internet * installations which explore the aesthetic of networking or role of the internet in musical culture and practice * * * // TALKS //* The Network Music Festival will include an informal talks session open to members of the public. Please submit Informal talks on the theme of network music. Light-hearted and accessible topics are encouraged. Talks will be 10-20 minutes in duration. *// WORKSHOPS //* Participatory workshops which cover topics related to sound and networking. These may focus on technological and/or artistic aspects. Please note this is a submission to LEAD a workshop. Please state the experience level required in order to take part in the workshop and the length of time and resources required. *// OTHER //* * * If there’s anything that you want to submit that you don’t feel is covered by the above categories please submit with as much information as possible. *DEADLINE FOR ALL SUBMISSIONS: *Extended to*25 November 2012* * * http://networkmusicfestival.org/open-call/ <http://networkmusicfestival.org/open-call/%22%20%5ct%20%22_blank> Any questions email networkmusicfestival(a)gmail.com <mailto:networkmusicfestival@gmail.com> with ‘OPEN CALL’ in the subject line. networkmusicfestival.org <http://networkmusicfestival.org/> // @netmusicfest <https://twitter.com/NetMusicFest> // facebook.com/networkmusicfestival <http://www.facebook.com/networkmusicfestival>

12 years, 1 month

New music made with Linux: Proggy B.day 2 Q

by Julien Claassen

Hello everyone! Here's another merry, little tune. Well the original tune might be considered merry, but I can't stand the ear of it. :-) So I resolved a slight problem: there was no prog version and certainly none, that was set in a minor key. So that's it: http://juliencoder.de/nama/proggy_birthday_2_q.mp3 http://juliencoder.de/nama/proggy_birthday_2_q.ogg Have fun! And a happy birthday to a good friend. :-) Feedback as ever is welcome. :-) Warm regards Julien ---------------------------------------- http://juliencoder.de/nama/music.html

12 years, 1 month

a new Freesound mix

by Dave Phillips

Greetings, Yes, it's another Freemix from StudioDLP: http://soundcloud.com/davephillips69/bet-you-can-drive-now Simple tonal beat music with a sweet groove. More wholesome fun for the entire family. No animals harmed during production. Bring the kids ! Best, dp

12 years, 1 month

New Computer - Wooo!

by Folderol

Someone asked about A series AMD machines a while ago. I kept quiet because I was in the process of getting one. Here is the spec: MBO ASUS® F2A55-M LE CPU AMD A8-5600K Quad Core APU (3.6GHz) & Radeon™ HD 7560D Graphics MEM 4GB SAMSUNG DUAL-DDR3 1333MHz SDA 120GB INTEL® 330 SERIES SSD, SATA 6 Gb/s '/' & /home' SDB 180GB INTEL® 330 SERIES SSD, SATA 6 Gb/s '/audio' & '/source' I've now spent a few days getting it exactly as I want it. I made very few BIOS changes. I disabled serial and parallel ports (the machine doesn't have them anyway) and set the CPU to 'performance'. Initially I disabled the on-board sound as I'm using my trusty 2496. But I got occasional boot oddities so re-enabled it. I installed a minimal debian-squeeze without any problems at all, then just added the software I wanted. This was a bit harder than I expected as my notes from last time were not complete, and going from Linux 2.6 to 3.1 meant there were subtle differences, especially with stuff I had to compile. The machine is very, very responsive and almost completely silent. The PSU has a slow running 120mm fan and the cooler on the CPU looks like something from a space lab! With the stock 3.1 kernel I'm running at a latency of 5.8mS with no x-runs even when going full steam on Rosegarden (with audio tracks) and Yoshimi. Sequencer + synth playing of complex material that used to peak at around 70% total processor, now peaks at around 20%! I did try the 3.2 kernel, both stock and RT but both of these actually performed far worse, and I had to run with a latency of 23.2mS to get clear of x-runs. My old computer has been re-purposed as a (rather fast) office machine, so that involved a lot of file swapping and checking that nothing was missed. Now, I suppose I'd better get on and compose some music :) -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song.

12 years, 1 month

Ubuntu slowing down when using Ardour

by Aurélien Leblond

>>* > My setup is as follows:*>>**>>* > - Ardour3 Beta5*>>* > - Ubuntu 12.10 64bit*>>* > - Using the Radeon open driver (FGLRX creates a lot of xruns)*>>* >*>>* > Now, I am not trying to start a conversation "Should I use*>>* Compiz when*>>* > playing music" or "Ubuntu is crap, what else should I use?" :)*>>* > I like Ubuntu, I like Unity and I like Ardour3!*>>* >*>>* > I am just checking if other people are experiencing the same*>>* issue, if there*>>* > is a solution to this problem, what additional testing I should*>>* do or what*>>* > additional information I should provide.*>>**>>**>>* Wonder if the CPU frequency scaling is causing this issue. I had an*>>* issue on a Dell machine at work where the box would run really slowly*>>* if it got the slightest bit hot from being pushed too hard (usually*>>* doing big Subversion commits or running sipp against a remote server).*>>* The governor would take it down to the lowest frequency level to help*>>* the machine cool down. This would even happen if I turned on the*>>* performance governor. It wasn't a Linux issue at all, because people*>>* who had the same hardware had the same problem on Windows.*>>**>>**>>* The thing is, the CPU never really goes over 40% usage, the rest of *>>* the machine is still working ok, only Unity/Compix are getting much *>>* slower.*>>**>>* After much testing, it seems to be only the Ubuntu Unity Dash getting *>>* slower, and only after a crash of Ardour3...*>> >Using Unity 2D or 3D? 2D is supposed to use less. >My suggestion: drop Unity, use XFCE instead. > Maybe it helps when you clean up the cache after Ardour crashes? > > sudo sync; echo 3 | sudo tee /proc/sys/vm/drop_caches Thanks for the suggestions, I'll try that out next time. @David: In Ubuntu 12.10, Unity 2D doesn't exist anymore. And thanks for the suggestion, but I actually doesn't want to drop Unity for XFCE - I really like the look and feel of Unity... But that's a discussion for another time :) Right now, I have re-installed the FGLRX driver... Looks like the performance issue is gone, even after an Ardour crash, and I apparently don't get xruns.... I'll keep you posted!

12 years, 1 month

A couple new tracks (modern electronic, drum & bass)

by William Light

Hey everyone, Been quiet for a while, just uploading things intermittently and as I finish them. Had a surge of inspiration and focus this past weekend that helped me polish up a couple of tracks I've been working on for a while. My setup nowdays is Renoise and various plugins. My workhorse synth is Loomer Aspect (VSTi, commercial), and my effects are everything from some of ccern's ported VSTs to the Calf DSSIs and every LADSPA I can get my hands on. I think I may have a Foo Driver or Foo Saturator on almost every channel by the time I'm done with a song. Anyway, the music! http://illest.net/~will/tracks/oddy-shiranai_visinin_lost_in_london_remix_u… This one is a remix I did for a friend of mine. The original song was club/progressive house, and, in addition to a house remix of my own, I also did this one in a drum & bass style. Lots of Aspect, but also lots of other various synths in here. I have a few Sorollet instances, a bassline from Discovery, and even a heavily-processed Karplus-Strong synth (it's the feedback-heavy one). I think I actually used the DSSI example KS synth for that. Lots of intricate drum programming in this one. I slaved over that percussion for longer than is healthy! http://illest.net/~will/tracks/visinin-camphor_and_you.mp3 Original track. Evolved from a slower, brooding track into this somewhat rushed-sounding one. The mixdown was unbelievably difficult here; all of the synths were stepping all over each other. I feel it came together well in the end, though! Hope you enjoy! -w

12 years, 1 month

Re: [LAU] [PD] pd-l2ork 20121115 rc1 now available including deb -- please test and provide feedback

by Ivica Bukvic

More info needed than that. How did you build it? Are you running 32bit system on a 64bit cpu? On Nov 19, 2012 9:47 PM, "Jonathan Wilkes" <jancsika(a)yahoo.com> wrote: > Tried to build the deb package, then running it with gdebi I get: > Error: Wrong Architecture " > > on debian wheezy amd_64 > > -Jonathan > > > > > ----- Original Message ----- > > From: Ivica Ico Bukvic <ico(a)vt.edu> > > To: pd-list(a)iem.at; A list for linux audio users < > linux-audio-user(a)lists.linuxaudio.org>; 'p1k53l workshop' < > piksel(a)piksel.no>; "An open mailing list for a world-wide network of > aspiring L2Orkists, L2Ork developers, contributors, and supporters." < > l2ork-dev(a)disis.music.vt.edu> > > Cc: > > Sent: Monday, November 19, 2012 12:26 PM > > Subject: [PD] pd-l2ork 20121115 rc1 now available including deb -- > please test and provide feedback > > > > Changelog: > > > > *Improvements to the installer > > *Dynamic pulling of the latest doc and Gem sources > > *Entire dev tree migrated to github > > *Autopatching refinements > > *Further refinements to the distinction between pd and pd-l2ork > > *Verbose error reporting from tcl/tk > > *Minor GUI clean-up > > *Merged patches from > > > http://sourceforge.net/tracker/?func=detail&atid=478072&aid=2947822&group_id > > =55736 > > *Overhauled online install documentation > > (http://l2ork.music.vt.edu/main/?page_id=56) > > > > I am pleased to report that in L2Ork rehearsals, pd-l2ork has been rock > > solid without any crashes or problems for over a month now. Most of the > > aforesaid fixes are cosmetic in nature. L2Ork has 15 networked machines > > pushing Atom-based netbooks to their very limits. > > > > Both deb package (with dependencies and conflicts--please report any > > problems if you encounter them trying to install pd-l2ork deb) and binary > > tarballs are available. They have been built on Ubuntu 12.04, so due to > > glibc inconsistencies they may not work on other platforms. > > > > > > > > If you need to rebuild the entire tarball from source, the new installer > > makes it extremely simple: > > > > > > > > 1) Download the dev snapshot from git > > > > git clone git://github.com/pd-l2ork/pd.git > > > > > > > > 2) Install all the dev dependencies (below is the one that works for > Ubuntu, > > other distros might use different package names): > > > > sudo apt-get install bison flex automake qjackctl tcl-dev tk-dev > > libasound2-dev libjack-jackd2-dev libtool libbluetooth-dev > libgl1-mesa-dev > > libglu1-mesa-dev libglew1.5-dev libmagick++-dev libftgl-dev > libgmerlin-dev > > libgmerlin-avdec-dev libavifile-0.7-dev libmpeg3-dev libquicktime-dev > > libv4l-dev libraw1394-dev libdc1394-22-dev libfftw3-dev libvorbis-dev > > ladspa-sdk dssi-dev tap-plugins ladspa-foo-plugins > > invada-studio-plugins-ladspa blepvco swh-plugins mcp-plugins cmt blop > > slv2-jack omins ubuntustudio-audio-plugins rev-plugins libslv2-dev > > dssi-utils vco-plugins wah-plugins fil-plugins mda-lv2 libmp3lame-dev > > libspeex-dev libgsl0-dev portaudio19-dev python-dev libsmpeg0 libjpeg62 > > tkpng flite1-dev libgsm1-dev svn > > > > > > > > 3) Uninstall any preexisting version of the cwiid library and install, > e.g.: > > > > apt-get remove libcwiid0 (or whatever the package name is) > > > > Optionally install cwiid library manually (if you don't have sudo enabled > > and don't want the installer to do this for you in step 4): > > > > cd master/l2ork_addons/cwiid > > aclocal > > autoconf > > make > > make install (need a sudo or root for this last step) > > > > > > > > 4) Run the installer > > > > cd master/l2ork_addons/ > > ./tar_em_up -F (for tarball binary installer) > > OR > > ./tar_em_up -B (for deb package) > > OR > > If you don't have sudo enabled (it is used to automatically install L2Ork > > version of the cwiid library) or have already manually installed the > cwiid > > library (see step 3 above) you can add "w" option that forgoes install > > of > > the cwiid library. So, ./tar_em_up -Fw or ./tar_em_up -Bw ought to do it. > > > > > > > > 5) Take a coffee break (on an Atom processor, installer runs for approx. > 1 > > hour). Once done, install the generated binary package that will be > located > > in the root git folder (where master/ folder is). > > > > IMPORTANT: if you have existing tarball-based install of pd-l2ork, and > are > > looking to install deb package, make sure to uninstall the old version > > first. This can be done by going into the old installer's folder and > typing > > sudo make uninstall. > > > > > > > > I'd appreciate feedback on the said builds. Please include as much info > as > > possible, including distro/version/32 vs 64bit/problem and how it > manifests > > itself, etc. > > > > You can get pd-l2ork from the usual place: > > > > http://l2ork.music.vt.edu/main/?page_id=56 > > > > > > > > Ivica Ico Bukvic, D.M.A. > > Composition, Music Technology > > Director, DISIS Interactive Sound & Intermedia Studio > > Director, L2Ork Linux Laptop Orchestra > > Head, ICAT IMPACT Studio > > Virginia Tech > > Dept. of Music - 0240 > > Blacksburg, VA 24061 > > (540) 231-6139 > > (540) 231-5034 (fax) > > ico(a)vt.edu > > http://www.music.vt.edu/faculty/bukvic/ > > > > > > > > > > _______________________________________________ > > Pd-list(a)iem.at mailing list > > UNSUBSCRIBE and account-management -> > > http://lists.puredata.info/listinfo/pd-list > > >

12 years, 1 month

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Linux-audio-user November 2012