Linux-audio-user February 2010

linux-audio-user@lists.linuxaudio.org

169 participants
129 discussions

by Ken Restivo

Just curious: do any of the Android-capable phones have an FPU? Can any of them run JACK? I've got a Linux audio instrument that fits in my backpack; the next challenge would be to see if I can get on that fits in my pocket. -ken

14 years, 2 months

SMPTE timecode?

by Rick Green

I'll be soing a field recording next week for a DVD music production. Is it possible to record an SMPTE timecode on a spare track? I've found some references on the web to something called LTC, which apparently is SMPTE encoded thru an audio codec. Is there any support in Ardour that would use this information to make post-production easier? -- Rick Green "Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." -Benjamin Franklin "As for our common defense, we reject as false the choice between our safety and our ideals." -President Barack Obama 20 Jan 2009

14 years, 2 months

Linux Audio Conference 2010

by Marc Groenewegen

Dear Linux Audio developer, user, composer, musician, philosopher and anyone else interested, you are invited to the... Linux Audio Conference 2010 The conference about Open Source Software for music and audio May 1-4 2010 Hogeschool voor de Kunsten Utrecht (HKU) Utrecht, The Netherlands Registration is open, and so is the call for abstracts and papers. More information can be found on the website: http://lac.linuxaudio.org/2010 For previous editions, look here: http://lac.linuxaudio.org For concerts, music and workshops a submission system and protocol will be available soon. In the meantime, ideas and announcements can be sent by e-mail ("lac -at- linuxaudio -dot- org ") or written on the wiki: http://wiki.linuxaudio.org/lac2010 We hope to see you all in Utrecht ! Kind regards on behalf of the LAC team, Marc Groenewegen, lecturer music software design @ HKU

14 years, 2 months

wikipedia: jack may not meet notability

by james morris

http://en.wikipedia.org/wiki/JACK_Audio_Connection_Kit

14 years, 2 months

The Drummer's Gigsaw: UPGRADE.

by Philippe Hezaine

Hi all, Here comes an UPGRADE of The Drummer's Gigsaw: Le Puzzle du Batteur - The Drummer's "Gigsaw". Polymetric editor for drums and percussions with midi velocities. NEW: * This upgrade has overcome all the previous midi limitations. Now you can write up to 47 simultaneous instruments (not tested) on the \pulse "track" and midi velocities are taken in account. * Besides 'melodiques' track there are 3 new tracks: \Polyun, \Polydeux et \Polytrois (see Readme and Tutoriel for use them.) * You no longer need to replace the Lilypond source file midi.scm when you install. * All barchecks are commented out in BASES to suit the polymetric features. * 2 new files in MA-BASE: Formules.txt and Soustraire.ly (see Readme and Tutoriel) (sorry, this section is still not translated) * 4 Demos to learn how to use the Gigsaw. * DEBUG repertory is replaced by COMPILE. * README & TUTORIELS are updated (but not entirely translated) *************** Download: You must DELETE or RENAME the old version before you'd decompress the new one. http://philippe.hezaine.free.fr/spip.php?article46 All comments are welcome. Have fun. -- Phil. Superbonus-Project (Site principal) <http://superbonus.project.free.fr> Superbonus-Project (Plate-forme d'échange): <http://philippe.hezaine.free.fr>

14 years, 2 months

Re: [LAU] wikipedia: jack may not meet notability

by Nick Dokos

Jack O'Quin <jack.oquin(a)gmail.com> wrote: > On Tue, Feb 16, 2010 at 5:19 PM, james morris <james(a)jwm-art.net> wrote: > > > > http://en.wikipedia.org/wiki/JACK_Audio_Connection_Kit > > Just noticed that recently, myself. > > My guess is JACK probably *does* meet their notability standards, but > the article would need to contain references to outside web sites > mentioning JACK. Perhaps something like the open source award given > to Paul a few years back... > > http://articles.techrepublic.com.com/5100-10878_11-5136755.html > -- > joq I added a note (and the ref to the TechRepublic article) to the Wikipedia page. Thanks for pointing it out! Nick

14 years, 2 months

an interesting note for jamin users...

by Jörn Nettingsmeier

hi *! have you ever wondered about the "width" control that jamin offers in each compression band? well, common wisdom has it that for vinyl, it is advisable to reduce the width of low frequencies, so that the grooves won't break, but that's about all i ever knew about it until today... here's a very old article by ambisonics pioneer michael gerzon about "stereo shuffling", which is basically a guide to frequency-dependent width manipulation for fun and profit, with many very inspiring factoids: http://www.audiosignal.co.uk/Resources/Stereo_shuffling_A4.pdf for me, that was quite an eye-opener. if you're bored, check out the other papers in the gerzon archive - besides being a brilliant mathematician, this guy had the gift of explaining really arcane stuff to laymen without resorting to dumbed-down analogies... best, jörn

14 years, 2 months

lv2 vocoder

by fred

Hi list, I'm trying to use lv2 vocoder (launched by "lv2rack" and add an FX) but face a problem : everytime I try to change a value in the GUI, the appli crash and Debian "insults" in these terms : /usr/local/bin/zynjacku.py:2652: GtkWarning: gdk_x11_atom_to_xatom_for_display: assertion `atom != GDK_NONE' failed if file_dialog.run() == gtk.RESPONSE_OK: /usr/local/bin/lv2rack:198: DeprecationWarning: use gtk.Statusbar.remove_message self.statusbar.remove(statusbar_context_id, statusbar_id) Cannot set midi cc map for plugin without engine python: plugin.c :1292 : zynjacku_plugin_set_midi_cc_map_internal: L'assertion « 0 » a échoué. Abandon f@f:~$ Have search a while but google was not my friend this time... Any help really appreciate ! -F

14 years, 2 months

Re: [LAU] MSI netbooks?

by Ivica Ico Bukvic

> -----Original Message----- > From: Josh Lawrence [mailto:hardbop200@gmail.com] > Sent: Monday, February 15, 2010 7:43 PM > To: Ivica Ico Bukvic > Subject: MSI netbooks? > > Hello Ico, > > You might have noticed my question regarding netbooks on the LAU list. > Would you mind telling me what make/model of MSI netbooks you are > using for your laptop orchestra? I figure if you are using them, they > must work fairly well with Linux, generally speaking... > > -- > Josh Lawrence > http://www.hardbop200.com Josh, We use MSI Wind U100s (160GB HD 1.6GHz Intel machines with 1GB RAM expandable to 2GB). With a real-time kernel and a 6-cell battery you should be able to get 3 hours of life. With a vanilla kernel you will be getting around 4.5 hours. Also, if you decide to go vanilla Ubuntu 9.10 route, we have prebuilt rt kernel that fixes webcam driver issues, so that effectively everything works on the machine including suspend and hibernate (latter not being extensively tested). You can find these for under $300 with a 3-cell battery. Latest BIOS updates also have manufacturer-supported overclocking up to 25% although they do not promise every machine will be capable of reaching this. Biggest shortcoming is touchpad buttons which are not very good but you can use tap to click so that is not as bad as it may seem. External mouse is even better option... Hope this helps! 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 CHCI, CS, and Art (by courtesy) 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/

14 years, 2 months

sound advice please

by Hamish

It's a little confusing what's happened to the mailing list... Anyway i hope someone can offer some sound advice. For years my music making has been curtailed and frustrated by the bad luck and dead ends linux audio has taken me to. Drawn to linux by the democratic ethic, and paranoia of a closed future, but not being a technical human I've been stumbling through various combinations of gear for the past few years...though this hiatus has made me a better guitarist and given me a clearer vision of what i want to achieve once I have a working setup... I've been through 3 soundcards and confusing advice from the ALSA soundcard matrix that originally said my old M-Audio Quattro was supported (it wasn't), a pcmcia card that was but with frustrating results and a firewire device that wasn't fully though it wasn't for months and months that I realised it was the stupid ricoh firewire chipset in my laptop that was to blame.... Anyway, finally i have enough cash to invest in a new laptop, and other gear if needed. I'd like some sound advice on what i need for a solid setup...obviously i'm not a true computer person and I'd like things to be as simple as possible... Stuff I have... a five year old laptop...(probably on it's way to a good home) a Presonus firebox a Zoom H4 about £500/$1000US What I'd like a solid working setup with no more hassle... 64 studio (I'll happily pay for support) or Transmission 3.0 (I'm not a purist) something portable, mobile, immune to x-runs and crashes something i can record/play/mash with many effects something portable and powerful either dual core 64 bit laptop or even a netbook if it would do the trick... (though it looks difficult to find firewire these days) i envision mainly using lots of live samples via midi, guitar, vocals, found sound, supercollider, sooperlooper, ardour and maybe some other generative apps...the linux audio universe is so rich but i want to keep things semi-simple Any advice appreciated Hamish

14 years, 2 months

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Linux-audio-user February 2010