Linux-audio-user September 2013

linux-audio-user@lists.linuxaudio.org

99 participants
90 discussions

by Patrick Shirkey

Some of you might be interested in this "new" OS in relation to Linux Audio Development. http://store.steampowered.com/livingroom/SteamOS/ They say they are working on audio latency issues but I haven't seen them pop up anywhere so I hope they are not going down the same path as the Android and ChromeOS dev teams. -- Patrick Shirkey Boost Hardware Ltd

12 years, 4 months

[LAU] Some music recorded with Linux

by Fons Adriaensen

Yesterday I made one of the most rewarding concert recordings I ever did. The opening concert of the 'Traiettorie' festival here in Parma, with violinist Hae-Sun Kang and five of her twenty-something students of the chamber music class in Paris. One of the pieces they played was Arnold Schoenberg's 'Verklaerte Nacht', the original version for string sextet. I've known it for at least thirty years and recorded it many times. It's IMHO one of the most beautiful pieces of music ever written. It's also quite a difficult one to get right - a string quartet already requires a lot of very intimate coordination, and with six players this only gets much more complex. I'd been present at the rehearsals the days before the concert, and seen those young musicians work on it - passionately and without compromise. The recording has all the defects of a live one - background noises of all sorts - but I think they played wonderfully. Equipment used was two Neumann KM184 mics, an RME Micstasy and Ardour3. I can't make it available publicly, but if the rare birds who like this type of music give me a hint there may be some chance. Not that I want to show off my work, which is insignificant, but just to share what some talented and motivated young musicians are capable of. 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)

12 years, 4 months

[LAU] Pulse Problem

by İzlem Gözükeleş

Hi, We use Debian Wheezy (3.2.0-4-amd64) with Digigram Lola 881. In our application we use FMOD library and we get the below error. While audio is playing, the sound is lost and player continued reading audio file but very very fast. The player that we developed runs almost 20 hours a day. Interestingly, we had this problem: Mon Sep 23 21:26 (error time) Wed Sep 18 16:10 (reboot system for another reason) Sun Sep 15 10:48 (error time) Tue Sep 10 08:22 (error time) Thu Sep 5 16:01 (install date) As it is seen, we have this problem almost 5 days after system boot. What may be the cause of this problem? Memory? ********************************************************************************************* syslog "Sep 23 21:08:58 ank-yay7-30 pulseaudio[25025]: [pulseaudio] main.c: User-configured server at {d25201022b82858589f672715226f35f}unix:/tmp/pu lse-hQ0f0Qxjni5j/native, which appears to be local. Probing deeper. Sep 23 21:08:58 ank-yay7-30 pulseaudio[25026]: [pulseaudio] main.c: User-configured server at {d25201022b82858589f672715226f35f}unix:/tmp/pu lse-hQ0f0Qxjni5j/native, which appears to be local. Probing deeper. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Successfully made thread 25029 of process 25029 (/usr/bin/pulseaudio) owned by '1001' high p riority at nice level -11. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Supervising 1 threads of 1 processes of 1 users. Sep 23 21:08:58 ank-yay7-30 pulseaudio[25029]: [pulseaudio] pid.c: Stale PID file, overwriting. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Successfully made thread 25031 of process 25029 (/usr/bin/pulseaudio) owned by '1001' RT at priority 5. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Supervising 2 threads of 1 processes of 1 users. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Successfully made thread 25032 of process 25029 (/usr/bin/pulseaudio) owned by '1001' RT at priority 5. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Supervising 3 threads of 1 processes of 1 users. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Successfully made thread 25033 of process 25029 (/usr/bin/pulseaudio) owned by '1001' RT at priority 5. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Supervising 4 threads of 1 processes of 1 users. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Successfully made thread 25034 of process 25029 (/usr/bin/pulseaudio) owned by '1001' RT at priority 5. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Supervising 5 threads of 1 processes of 1 users. Sep 23 21:08:58 ank-yay7-30 pulseaudio[25029]: [pulseaudio] module.c: module-combine is deprecated: Please use module-combine-sink instead o f module-combine! Sep 23 21:08:58 ank-yay7-30 pulseaudio[25029]: [pulseaudio] module-combine.c: We will now load module-combine-sink. Please make sure to remo ve module-combine from your configuration. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Successfully made thread 25037 of process 25029 (/usr/bin/pulseaudio) owned by '1001' RT at priority 6. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Supervising 6 threads of 1 processes of 1 users. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Successfully made thread 25039 of process 25039 (/usr/bin/pulseaudio) owned by '1001' high priority at nice level -11. Sep 23 21:08:58 ank-yay7-30 rtkit-daemon[4003]: Supervising 7 threads of 2 processes of 1 users. Sep 23 21:08:58 ank-yay7-30 pulseaudio[25039]: [pulseaudio] pid.c: Daemon already running. Sep 23 21:13:07 ank-yay7-30 pulseaudio[25029]: [alsa-sink] alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write! Sep 23 21:13:07 ank-yay7-30 pulseaudio[25029]: [alsa-sink] alsa-sink.c: Most likely this is a bug in the ALSA driver 'snd_lola'. Please report this issue to the ALSA developers. Sep 23 21:13:07 ank-yay7-30 pulseaudio[25029]: [alsa-sink] alsa-sink.c: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail." -- ibrahim izlem GÖZÜKELEŞ

12 years, 4 months

[LAU] [OT] Reelin' in the years: Tracking the history of magnetic tape

by Chris Bannister

Hi, Someone might be interested in this: http://www.theregister.co.uk/2013/09/09/history_of_magnetic_tape_part_one/ -- "If you're not careful, the newspapers will have you hating the people who are being oppressed, and loving the people who are doing the oppressing." --- Malcolm X

12 years, 4 months

[LAU] ayyi

by Ralf Mardorf

Hi :) there seems to be no info about possible conflicts between ardourd and an already existing Ardour install. Before I install ayyi I want to know if it could cause issues. Regarding to no output for [rocketmouse@archlinux ayyi]$ pacman -Ql ardour | grep ardourd I suspect at least no issues for a parallel Ardour2 install. [rocketmouse@archlinux ayyi]$ pacman -Q ardour ardour 2.8.16-1 [rocketmouse@archlinux ayyi]$ cat ardourd-0.1.10/README Please see the Ardour web site at http://ardour.org/ for all documentation.. For information on building ardour: http://ardour.org/building. Regards, Ralf PS: When using http://www.ayyi.org/contact I get: warning: mail() has been disabled for security reasons in /home/orfordo/public_html/ayyi.org/includes/mail.inc on line 193. Unable to send e-mail. Please contact the site admin, if the problem persists. Your message has been sent.

12 years, 4 months

[LAU] Just an information about the state of affairs - Re: [LAD] forking (was Re: Aeolus)

by Ralf Mardorf

On Sat, 2013-09-21 at 14:42 +0300, Dan Muresan wrote: > Fons, one big problem is that the Muse page > (http://www.muse-sequencer.org/index.php/Aeolus) shows in Google > results above your page for various relevant searches ("aeolus organ", > "aeolus synth" and several). > > The second big problem is that the Muse page links to a non-existent > domain for its "official Aeolus" page > (http://www.kokkinizita.net/linuxaudio/aeolus) > > I see that the actual page is > http://kokkinizita.linuxaudio.org/linuxaudio/aeolus/index.html > > Did you use to host Aeolus at a domain that was subsequently lost? It > would help everybody to go around and update the various links around > the intertubes to a domain in existence; I'm sure Google will give the > "true" homepage appropriate link juice soon enough. The fork now is deleted by Maurizio M. Gavioli from github. He sent me a private mail and explained that it was experimental and rather collateral to his interests, so it is not a great loss neither for him nor, obviously, for the community. So this "issue" is "solved". Regards, Ralf PS: I'm sorry to hear that it ended like this.

12 years, 4 months

[LAU] end-user oriented info on OSC

by Hartmut Noack

Hello, I am searching for information, especially manuals and howtos on OSC that address the end-user side. Imagine a musician, that uses Ardour and wants to use its OSC-capabilities. Do you know any howtos for people, who want to use a MIDI-controller to send OSC to software under Linux? Especially I would be interested in informations how to use OSC *without* using PD-patches. Or, if that is not available, anything to download and simply open with PD that allows end-users without any programming-skills to use OSC under Linux. best regards

12 years, 4 months

[LAU] [Fwd: Re: [LAD] forking (was Re: Aeolus)]

by Ralf Mardorf

I want to chime in a last time. See the forwarded message. Please, talk to "mgavioli" and try to find a consensus. I've got the impression that this is possible. It's completely irrelevant what opinions we have got. _Neither anybodies opinion, nor mine is relevant and nothing more I wanted to say_! As so often: English isn't my native language, my English is completely broken. Is this understandable(?): "mgavioli" claims something and a presumption of innocence is good etiquette too. Isn't it? Or is it common sense to think the most worse first? Have a nice weekend! Ralf -------- Forwarded Message -------- From: Ralf Mardorf To: linux-audio-dev(a)lists.linuxaudio.org Subject: Re: [LAD] forking (was Re: Aeolus) Date: Sat, 21 Sep 2013 11:52:05 +0200 On Sat, 2013-09-21 at 08:52 +0000, John Rigg wrote: > On Sat, Sep 21, 2013 at 07:52:02AM +0200, Ralf Mardorf wrote: > > It's completely impossible to be on Fons site. When Fons has such a > > super-mind, why did he chose the GPL? Those simple-minded guy who forked > > Aeolus might have made a little mistake, but doesn't offend the licence. > > Ralf, please stop this straw man argument about the GPL. Fons is understandably > irritated by someone forking his project without prior discussion. It's a > question of etiquette, not licence terms, as has been pointed out repeatedly > in this thread. > > It isn't difficult to find out that Aeolus is currently maintained; all it > takes is a look at the README in the sources, which contains release dates. > The 2007 copyright date which I think was mentioned earlier (I'm not going to > re-read this whole sorry thread to confirm that) is the copyright date for > GPL 3, not Aeolus. Again, this stuff is not difficult to check. > > Another point: copyright and licence are separate things. It is possible to > violate a copyright while still complying with the GPL. Adding one's own > copyright notice to someone else's original work without making substantive > changes to the work may be such a violation (IANAL, so that's speculation). > > John Hi John, I won't discuss this anymore, even while I've got arguments for forgiving mistakes and finding a solution. Don't talk to me, talk to "mgavioli" at https://github.com/mgavioli/oscAeolus/issues/1 , explain him his mistake and see if he does offended/offences etiquette because he's evil, or because he made a mistake and what's his opinion about the "issue". All those threads perhaps are completely useless, when just talking to "mgavioli". He made a mistake? Ok! And now? Making it a drama while it might be easy to solve, by just talking to him? He might think he didn't made a mistake, so he perhaps won't contact somebody, but he perhaps will reply if Fons or you send a request. Why all this discussion with speculations instead of talking to the right person? "mgavioli" claims something and a presumption of innocence is good etiquette too. Isn't it? Or is it common sense to think the most worse first? Please, talk to "mgavioli" and try to find a consensus. Regards, Ralf

12 years, 4 months

[LAU] GPL under pressure

by Ralf Mardorf

My last words to and perhaps reading of the threads about the evil that someone forked a project from Fons, that was GPL'ed by Fons and nobody else. Nobody showed a violation of the GPL by Maurizio M. Gavioli, just a mistake he seemingly is willing to correct after I contacted him, something Fons could have done too. Humans tend to make mistakes. If Fons makes a mistake it's ok, if somebody else makes a mistake she/he is bad, should shut up, should stop forking a project, should be fired. Fons made a mistake, he chose the GPL, while he disagrees with the GPL. And now I read to often "please, please Fons, continue writing GPL'ed software, we will reinterpret the GPL for you". Fons is free to stop contributing or to continue contributing by using another license, but if he chose the GPL, he's the only one to blame and not Maurizio M. Gavioli. Calling him simple-minded (because he is one of those Fons was talking about, even while he didn't use Maurizio's name) is offending netiquette, not forking the project is offending netiquette. "Aeolus is meant to emulate a pipe organ, including the limits of a real one. It's not meant to be a backend to some sequencer or notation software, or a general-purpose additive synthesiser." - Fons Maurizio M. Gavioli seems to fork it, for usage with notation software. Any discussion about something that should be wrong with doing this, is a shame and does harm the GPL. Regards, Ralf

12 years, 4 months

Re: [LAU] [LAD] forking (was Re: Aeolus)

by Ralf Mardorf

Thank you Hermann that I should shut up ;) while I'm right regarding to the link you posted: On Sat, 2013-09-21 at 08:10 +0200, hermann meyer wrote: > Ralf, please stop this. You seems to have no Idea about what the blame > is here. Read here, > > Why, When, and How to Fork an Open Source Project >From your link above: "Why Fork? Answer – Because you cannot get the software to meet your needs any other way. There are different reasons that this might be the case. If the core developers, who have write-access to the source code, don’t accept your features or patches. If the core developers reject use cases or a direction that community members want." And now read what Fons Adriaensen wrote on Fri, 2013-09-20 at 19:35 +0000: > * A request to have a 'volume' control on each stop. > > * A request to make Aeolus start up with the stops etc. that > were in use the last time. > > Both are no-go. Aeolus is meant to emulate a pipe organ, including > the limits of a real one. It's not meant to be a backend to some > sequencer or notation software, or a general-purpose additive > synthesiser. Fons called others simple-minded if they don't respect his intention, while Maurizio M. Gavioli is sorry and not aware about offending the GPL: https://github.com/mgavioli/oscAeolus/issues/1 So you expect that Maurizio M. Gavioli should talk to Fons, after being called simple-minded? It's a shame and it should be forwarded to the FSF or Fons simply should stop contributing GPL'ed software.

12 years, 4 months

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Linux-audio-user September 2013