Linux-audio-user

linux-audio-user@lists.linuxaudio.org

12 participants
20637 discussions

[linux-audio-user] Multimedia kernel patches?

by felipe

Hi list, for the past few months I've used Kon Coliva's kernel patches ho have all the requisites to run jackd & Co. http://members.optusnet.com.au/ckolivas/kernel/ But last time I checked those patches they gave me a bunch of errors against 2.4.22, plus I notice such development seems to have slowed down a lot. What patches do you use to make a preemptible/lowlatency/capabilities enabled kernel? Where do I find them? =) thanks, bye -- Email.it, the professional e-mail, gratis per te: http://www.email.it/f Sponsor: Incontra nuovi amici su match.com ti stiamo aspettando! Clicca qui: http://adv.email.it/cgi-bin/foclick.cgi?mid=2094&d=14-11

21 years, 8 months

[linux-audio-user] medialinux

by aguerrier

Does anyone on the lists uses Medialinux? I know it is based on Knoppix 3.3-which is great. Does it have any shortcoming or known issues?

21 years, 8 months

[linux-audio-user] JACK-0.90.0 Released

by Taybin Rutkin

********JACK 0.90.0******** JACK is a low-latency audio server, written primarily for the GNU/Linux operating system. It can connect a number of different applications to an audio device, as well as allowing them to share audio between themselves. Its clients can run in their own processes (ie. as normal applications), or can they can run within the JACK server (ie. as a "plugin"). JACK is different from other audio server efforts in that it has been designed from the ground up to be suitable for professional audio work. This means that it focuses on two key areas: synchronous execution of all clients, and low latency operation. Source packages for Jack 0.90.0 are available http://sourceforge.net/projects/jackit/ . ********Major Changes******** Buffers can resize during operation. This can be triggered by the user or by the function jack_set_buffer_size(). See the documentation for details. It is new code and still needs a shakedown. It can be enabled with './configure --enable-resize'. If not compiled in, jack_set_buffer_size() returns ENOSYS. Applications should be prepared for it though. Major rewrite of the thread model. This won't affect users. Thanks to the rewrite, jack now has a "freewheeling" mode for faster than realtime operation. It decouples the engine from the soundcard. The alsa driver has 3 new options. --i, --inchannels sets the number of channels to open for input. --o, --outchannels sets the number of channels to open for output. -S, --shorts changes the order of in which the sampleformats are tried. The driver will try to use 16bit samples first and only tries 32bit if this fails. Useful if you digitaloutput card supports 32bit samples but your interface doesn't. ********Minor Changes******** Greatly increased support for other architectures. --version also prints out the temporary directory. Example clients expanded to be more helpful. Many bug fixes. Updated and improved documentation. Portaudio driver works on linux. jack_connect() returns EEXIST if a connection is already made. Addition of jack_get_current_transport_frame (). hw:0 is the default ALSA device instead of "default". Jack's build system has better optimization. --silent option for halting jackd's output. Removal of --tmpdir and --asio options. Will compile with alsa-lib-1.0.0pre1 (the latest). ********Other******** Jack now has a mantis bugtracker at http://jackit.sf.net/mantis/ . Please use that for bug reports. James has written a tutorial for jack programmers available at http://dis-dot-dat.net/jacktuts/starting/index.html . ********Deprecated******** These are deprecated structures and functions that have been deprecated. They will likely be removed in a future release. The jack_transport_info_t struct has been deprecated. Please use jack_position_t instead. jack_engine_takeover_timebase() has been deprecated. Please use jack_set_timebase_callback() instead. jack_set_server_dir() has been deprecated. jack_get_transport_info() has been deprecated. Please use jack_transport_query() instead. jack_set_transport_info() has been deprecated. Instead, define a JackTimebaseCallback.

21 years, 8 months

[linux-audio-user] AGNULA joins the Prato LUG for Linux Day 2003

by The AGNULA team

+-----------------------------------------------------------------+ | ______ ______ _ _ _ | | /\ / _____) ___ \| | | | | /\ | | / \ | / ___| | | | | | | | / \ | | / /\ \| | (___) | | | | | | | / /\ \ | | | |__| | \____/| | | | |___| | |_____| |__| | | | |______|\_____/|_| |_|\______|_______)______| | | | +-----------------------------------------------------------------+ [Sorry for cross-posting. Feel free to forward around] Florence, 12 Nov 2003 +++ AGNULA joins the Prato LUG for Linux Day 2003 [0] The AGNULA project is proud to join the Prato Linux User Group [1] for the 2003 edition of the Linux Day, to be held on November 29. The AGNULA team will hold a presentation/workshop on the current state of the project, the directions we are taking and the whos and whats on audio/video development with Libre Software. +++ For the third consecutive year ILS (the Italian Linux Society) [2] is promoting the Linux Day: all Linux/Free Software User Groups which support the initiative [3] will organize meetings, workshops and installation parties in their own zone of reference. PLUG (Prato Linux User Group) has kindly asked the AGNULA project to join their meeting, which will be held in PLUG's headquarters (via Pomeria 90, Prato, Italy). [4] AGNULA's participation to the Linux Day will focus on: - the current state-of-the art of the AGNULA project; - the current state-of-the art of the AGNULA/DeMuDi distribution; - the directions the AGNULA project will take in the next months; During the meeting, CD-ROMs of AGNULA/DeMuDi 1.0 will be distributed. +++ About AGNULA: AGNULA (acronym for A GNU/Linux Audio Distribution, pronounced with a strong g) is the name of a project funded by the European Commission (number of contract: IST-2001-34879; key action IV.3.3, Free Software: towards the critical mass). The project aims to spread Free Software in the professional audio/video arena. About PLUG: PLUG (acronym for Prato Linux Users Group) is a no-profit association devoted to promoting Libre Software and Open Hardware, spreading the conscious use of IT instruments, thus allowing access to low-cost and old hardware to help economically disadvantaged people. -- The AGNULA Team info(a)agnula.org Our mailing lists: http://lists.agnula.org/ Our web site: http://www.agnula.org/ "There's no free expression without control on the tools you use" [0] http://www.linux.it/LinuxDay/main.shtml [1] http://www.prato.linux.it/ [2] http://www.linux.it/ [3] http://www.linux.it/LinuxDay/programma.phtml [4] http://mappe.virgilio.it/tc/mappa.jsp?com1=prato+%28po%29&to1=via+pomeria&c…

21 years, 8 months

[linux-audio-user] [RFC] Request For Contest - The Linux-2.6 theme song contest !

by Robert Jonsson

Hi Everybody, This mail is a direct consequence of the song Austin Acton posted recently. :) A nice little tune made with linux, about linux, that has been quite successful with very little advertisement. After a few brain rotations (before you ask, yes, I think by rotating my brain) I came to the conclusion that RIGHT NOW is a wonderful time to start a write_the_best_linux_song_contest! My reasoning is that linux-2.6 is just around the corner, people are hungry for any kind of linux related information, no matter how far fetched (I don't even think this is very far fetched). Making a little contest to choose THE linux-2.6-theme-song seems like a very good way to attract some easy publicity, the main thing we want to do is make people interested in (and aware of) audio production under linux. I'm confident that Slashdot (or any news site in the free software world for that matter) would gladly do a story on this event. BUT before we get to that, let's atleast produce some music ! :) Some criteria I thought would be applicable: - The song must be about linux in some way (about linux 2.6 seems the obvious choice). - The song must be (atleast) processed with a computer and that computer must run linux. - No computer running an operating system that is nonfree can be used in the production. (External synthesizers or similar stuff with advanced capabilties don't count as computers and can thus be used) - The song must be written by the artist (possibly used with permission). - The song would preferably contain some kind of voice track ( it might be hard to hear that it's about linux otherwise, and it would be nice to know how you people sound :-) - the better the audio quality the better, though I think there are other qualities of the recordings that count. - Some info about the applications/gear used should be included (atleast applications). - No prices, just free publicity for anybody that joins, and most publicity for those that reach the top in the event that we actually pull of a vote. We already got one song, Austins! I'm in the middle of producing a naive electronic piece myself (I mainly play the guitar) that I think will be applicable also. But... two songs don't make a contest... So, what do you say? Are we up to it? I'm calling all linux-artist wannabees, this is the time! I dare all developers that aren't on a deadline to take some time of from coding and also participate, bring out the artist in you! :) Wouldn't you just die to hear "The ballad of Alan Cox", or "Linus' Theme" or "The Bitkeeper Blues" :) (those are free btw if anyone gets any bright ideas ;) >From now til, say, December 14, one month, might be enough time to do something creative, yes? Let me know if there is any interest for this then I will try to formalize things a bit, website etc. Well don't just sit there, let's do it! :) /Robert

21 years, 8 months

[linux-audio-user] Flash audio

by Lloyd R. Prentice

Hello, Does anybody know if there is a non-proprietary protocol that will stream audio to Flash player clients? Best wishes, Lloyd R. Prentice

21 years, 8 months

[linux-audio-user] 2.6.0 song theme... request.

by Gian Paolo Mureddu

A few days ago (like a week or so) someone posted a link to this incredible song. Now my request is to ask the author or any other user who might have a better clue than I as to what do the lyrics say. Since English is not my mother language I have been having a hard time to decipher some parts or the song (though I undertand pretty much everything :-) ). Ohhh... And ATM I'm at another computer, could you please also post the link again so I can grab the song in this computer? Thanks, all!.

21 years, 8 months

[linux-audio-user] ecasound and software midi controller

by Alex Marandon

Hello, This my first post in this list so I introduce myself. I am non-native english speaker, so forgive me if my english is not correct, I hope at least it will be understandable ;) About my computer skills I'd say that I'm an advanced beginner in Linux and *BSD systems, i'm very far to be expert but I manage to deal with my own problems without much pain now. I work as a Perl/Python programmer and I slowly learn C/C++. For a few days now I've started to explore the world of linux audio-related software, so I'm a real newbie on this topic. I've played a little bit with ecasound (i love its concept) and I wonder if there is a way to control parameters of operators in realtime using software midi-controllers. If yes, what software to use ? What configuration ? Is it possible, and how to perform automation in order to replay what was done manually ? Any information about how to achive this goal is welcome. Thanks.

21 years, 8 months

[linux-audio-user] jack stereo

by Paul Brossier

Hi all. I had a sudden doubt about my left and my right. I was firing up jack (through qjackctl, lazy i am) and then 'alsaplayer -o jack somefiles*', getting the output playing fine. But then when i tried to mute a channel with the balance in alsaplayer, the unmuted channel was sent to both speakers. Even when disconnecting the left cable, the right channel was still outputed on both left and right ?! I found the trick while writing this email, so i thought i should let you know. The culprit was the 3D Control switch of my emu10k1, which was set to on. Note for later, i won't use these one and a half D things again :) Cheers, piem

21 years, 8 months

[linux-audio-user] Retro UNIX Programming for Audio

by davidrclark＠earthlink.net

Greetings Linux Audio Users. This posting is to announce and describe a project that I have undertaken over the past two years with the grand hope that somebody may care. My goal is to gauge outside interest to determine whether or not to spend time packaging the source code for distribution, which I have not even started yet. It would be some time before a release package was available, for which I apologize. To provide a very brief description of the project: It could be described as CSound without the CSound environment; things are done via ordinary scripts and at the command line. It's also like the GLAME Filternetwork, but without pictures or a GUI. A lame version of GLAME? Perhaps it most closely resembles ecasound, except that it's a set of programs for audio in the same manner that awk, grep, tr, paste, and sed are for text files. Ah, but there is more.... BACKGROUND A couple of years ago, I decided to tackle PHYSICAL MODELLING of large rooms such as concert halls... ---------------------------- So as not to clutter things up for everyone, continued on: home.earthlink.net/ TILDEdavidrclark /linux_audio_users/project_announce.html where TILDE is ~ or shift-accent-grave, and the three lines are combined into one URL.

21 years, 8 months

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Linux-audio-user