Linux-audio-user January 2009

linux-audio-user@lists.linuxaudio.org

165 participants
173 discussions

Re: [LAU] [LAD] LAC2009

by Jörn Nettingsmeier

David Robillard wrote: > On Tue, 2009-01-13 at 01:33 +0200, Juuso Alasuutari wrote: >> On Monday 12 January 2009 23:52:04 Fons Adriaensen wrote: >>> Hello all, >>> >>> Many thanks to all who have responded to yesterday's >>> message ! There is still room for more, so start >>> writing the paper you always wanted to write, or >>> preparing the workshop you always wanted to do... >>> >>> The paper deadline will be extended to the 29th >>> of this month. >> ... >>> Earlier some of you expressed the desire for >>> developer meetings, brainstorms or working >>> sessions. I'd ask any specific groups who >>> want to meet in Parma to get organised and >>> keep me informed. >> I'm thinking hard about whether to offer a presentation about LASH's recent >> changes and future. I'd at least like to host a LASH brainstorming session, >> like we had for JACK last year. And I trust there will be a JACK meeting again >> this year too, no? > > Dooooooo it :) Though, both LASH and JACK talks/session/whatever > converge at the D-Bus stuff... maybe they could be tackled as a single > concept (LASH pretty much exists to solve a problem caused by the use of > JACK anyway) > > I'd like to do an LV2 presentation this year, but I don't think I can > swing attendance :/ Dah well please with sugar on top? we should really have more infrastructure meetings. it would be great to have a dbus/lash and a lv2 session at lac09... and i'd love to hear your lv2 presentation :) jörn (who has never ever complained to you about drobilla.net svn not compiling :-D)

16 years, 11 months

Question about Behringer UCA202 USB audio device

by david

Is it normal for it to have more-or-less constant low-frequency pops and crackles while playing quiet passages, and occasional louder pops even in louder passages? These are files that were digitally generated (sample recordings of the Aeolus organ synthesizer) or ripped from CDs, so they weren't analog recordings that might have such additional natural sounds. TIA. -- David gnome(a)hawaii.rr.com authenticity, honesty, community

16 years, 11 months

mscore and linuxsampler

by alex stone

After a lot of work, 2 rebuilds (32 and 64bit), and some challenges :) i finally have mscore working with linuxsampler as the sound engine. It's taken a lot of work because of Mscore's insistence on capturing and clutching tightly to its chest, the RTC timer. I've mentioned this before, and there's been some discussion already on the 'right' of an app to exclusively possess the timer, so, enough said. However there's the smell of success here, as a problem is overcome. And the answer's fairly simple. For those like me who cringe at the general quality of generic soundfonts (Strings usually suck by default), and desire a more pleasing playback, the first step is setting up a generic midi soundbank, using GM format, in linuxsampler, and assigning all your quality instruments. Assign in mscore edit/preferences 'midi output' as the, obviously, midi out device. jack needs to be stopped. Start Mscore first, so that you don't get the accursed 'RTC Timer is mine, all mine, and someone else has it, so i'm not playing' message. Start Jack, with alsa seq as the default midi device. (I'm using jackmp, so this is modified with the 'Jack_control' mechanism in a terminal. And it's from the terminal that i start jack, with, you guessed it, 'jack_control start') Start Linuxsampler, and load your brand spanking new GM default lscp template. Cable linuxsampler's audio outs to your output of choice, be it system, or another app for recording or playback. Either in patchage (my weapon of choice) or qjackctl, cable mscore midi out to linuxsampler midi in. (and the midi port in linxsampler is alsa. I've got this working with the mighty a2jmidid bridge 'a2jmidid -e', but if you're scribing notes in mscore, the simple setup works ok.) And you should be good to go. Toby at launchpad has done a good job of packaging Mscore 0.9.4 for UBstudio hardy and Intrepid (testing), and it all installed well. So you get all the new features to enjoy as well. (Thanks Toby. :) ) I've long been a fan of Mscore and that enthusiasm continues, hence this quick post. This workaround is for those who starting on the mscore journey, and may be struggling with the whole RTC thing, and crave a better quality playback option. Thanks to Werner and the team, and in addition to the wonderful Rosegarden, we are fast getting spoiled for notational choices. I made mention in another post of a 'dictionary' in RG, where the user could assign ports and channels to an external device like Lsampler, and select sounds for articulations by port and channel for playback, as well as set timing parameters for symbols, like fermata. We have the first bit in abundance in RG, and the second would be useful, imho, in the future at some point. (And i say this acutely aware of the formidable task the RG team have at the moment, porting to QT4.) I would hope that something like this, or a uniquely 'linuxish' framework, that puts this control in the hands of the user, could also find its way into the Mscore project at some point. Alex.

16 years, 11 months

Re: [LAU] Question about Behringer UCA202 USB audio device

by david

Ronald Stewart wrote: > I have that one and it does not do that... > > 1) Do you have RT? No, haven't taken that step. > 2) change the frames for 2 to 3 or from 3 to 2 I wasn't using JACK with it, so never even checked. > thanks > > ron > www.indamixx.com > > On Tue, Jan 13, 2009 at 12:53 AM, david <gnome(a)hawaii.rr.com> wrote: >> Is it normal for it to have more-or-less constant low-frequency pops and >> crackles while playing quiet passages, and occasional louder pops even >> in louder passages? These are files that were digitally generated >> (sample recordings of the Aeolus organ synthesizer) or ripped from CDs, >> so they weren't analog recordings that might have such additional >> natural sounds. -- David gnome(a)hawaii.rr.com authenticity, honesty, community

16 years, 11 months

Re: [LAU] [LAD] LAC2009

by Fons Adriaensen

On Tue, Jan 13, 2009 at 07:38:40PM -0500, David Robillard wrote: > Dooooooo it :) Though, both LASH and JACK talks/session/whatever > converge at the D-Bus stuff... maybe they could be tackled as a single > concept They are indeed closely related in practical terms. > (LASH pretty much exists to solve a problem caused by the use of > JACK anyway) Do you prefer being burned at the stake or quartered ? :-) > I'd like to do an LV2 presentation this year, but I don't think I can > swing attendance :/ Dah well Still it would be good to have such a presentation. Beg, steal or borrow ! Ciao, -- FA Laboratorio di Acustica ed Elettroacustica Parma, Italia O tu, che porte, correndo si ? E guerra e morte !

16 years, 11 months

Re: [LAU] [LAD] LAC2009

by Renato Fabbri

2009/1/13 David Robillard <dave(a)drobilla.net>: > On Wed, 2009-01-14 at 01:37 +0100, Fons Adriaensen wrote: >> On Tue, Jan 13, 2009 at 07:38:40PM -0500, David Robillard wrote: >> >> > Dooooooo it :) Though, both LASH and JACK talks/session/whatever >> > converge at the D-Bus stuff... maybe they could be tackled as a single >> > concept >> >> They are indeed closely related in practical terms. >> >> > (LASH pretty much exists to solve a problem caused by the use of >> > JACK anyway) >> >> Do you prefer being burned at the stake or quartered ? :-) > > Truth! The pros outweight the cons though, if that gets me pardoned :) > >> > I'd like to do an LV2 presentation this year, but I don't think I can >> > swing attendance :/ Dah well >> >> Still it would be good to have such a presentation. > > Definitely. LV2 is one of those things that can look > awful/weird/confuding/overdone at first glance but is really easy to > explain in real life such that people Get It... (that everyone involved > sucks at PR doesn't help either) > >> Beg, steal or borrow ! > hey, i really wanted some kind of step-by-step lv2 plugin tutorial, like, in each step a hole plugin exploring some lv2 and programming features. I started it, but i dont think i can tackle this stuff by my own and by lac2009 deadline.. anyway its here: svn co http://svn.assembla.com/svn/audioexperiments/lv2tutorial or browse at: http://trac.assembla.com/audioexperiments/browser/lv2tutorial there are too some starting plugins here svn co http://svn.assembla.com/svn/audioexperiments/lv2plugs "i apollogise for the unpolished work", i have to spend some days on it, than weeks, then... but its all yours if you like, i didnt even put a licence on this stuff. I would enjoy working a little on it too, maybe like exposing all the questions/difficulties that me, dummy python quasi-programmer,.have or have had, and trying to code some more. Renato -gk ;) > > -dr > > > _______________________________________________ > Linux-audio-dev mailing list > Linux-audio-dev(a)lists.linuxaudio.org > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev >

16 years, 11 months

Re: [LAU] [LAD] LAC2009

by Fons Adriaensen

On Tue, Jan 13, 2009 at 01:33:34AM +0200, Juuso Alasuutari wrote: > I'm thinking hard about whether to offer a presentation > about LASH's recent changes and future. Such a presentation would be most welcome. It would also provide a good introduction to > a LASH brainstorming session, (which would then be planned after your presentation). Again, this would be a very good idea. A lot has happened since the first LAC, and looking at all of it I get sort of a 90% syndrome feeling. The functionality that LASH provides, or that could be provided by future versions of it, is IMHO one of the essential things that really need attention if we want Linux Audio to be 'competitive'. Defining it will require either broad cooperation and concensus, or a dictator, and it's not an easy matter at all. > And I trust there will be a JACK meeting again > this year too, no? It depends only on who will be present. Looking at the results, last year's meeting has been quite useful. Ciao, -- FA Laboratorio di Acustica ed Elettroacustica Parma, Italia O tu, che porte, correndo si ? E guerra e morte !

16 years, 11 months

Re: [LAU] [LAD] LAC2009

by Rui Nuno Capela

Juuso Alasuutari wrote: > > I'm thinking hard about whether to offer a presentation about LASH's recent > changes and future. I'd at least like to host a LASH brainstorming session, > like we had for JACK last year. And I trust there will be a JACK meeting again > this year too, no? > ++votes for the lash presentation jack meeting is a must ;) -- rncbc aka Rui Nuno Capela rncbc(a)rncbc.org

16 years, 11 months

Invitation to Southern California Linux Expo 7x

by Gareth J. Greenaway

Greetings, I hope this email finds everyone doing well. The Southern California Linux Expo is fast approaching and we have a few spots left for free & open source projects. I would like to formerly invite the Linux Audio consortium to participate at the show and showcase the various free & open source audio applications that are currently available. The show will be taking place February 20th - 22nd, 2009 in Los Angeles, CA at the Westin LAX. SCALE would provide a complimentary booth on our show floor including all the usual amenities such as a 500W power outlet, ethernet drop, one 6' table and chairs. We will also provide 3-5 complimentary passes to the show. Ideally we would like to see as many of the Linux Audio member projects represented. Any questions please do not hesitate to ask. Thanks! Gareth -- Gareth J. Greenaway <g(a)socallinuxexpo.org> Voice - 877-831-2569 x130 Southern California Linux Expo http://www.socallinuxexpo.org

16 years, 11 months

LAC2009

by Fons Adriaensen

Hello all, Many thanks to all who have responded to yesterday's message ! There is still room for more, so start writing the paper you always wanted to write, or preparing the workshop you always wanted to do... The paper deadline will be extended to the 29th of this month. Some practical info: There are no formal calls for workshops or for participating in the Linux Sound Night on the conference website. For both just drop me line. Regarding the LSN, I had a meeting with the management of the Teatro Lenz this afternoon. Lenz is very much one of the 'alternative' cultural organisations in Parma, and would be the natural place for something like the LSN. Normally they would be organising a festival in April and May, and the LSN would fit in very well into it, allowing it to be organised at minimal cost. But thanks to the new cultural politics of the government guided by Il Cavaliere (Berlusconi) Lenz won't have any funding until September, and has to cancel the festival. It's probably still possible to use the location, and anyway we'll do whatever is needed to get the LSN organised. We will add some travel and visitor info to the website early next week. Earlier some of you expressed the desire for developer meetings, brainstorms or working sessions. I'd ask any specific groups who want to meet in Parma to get organised and keep me informed. Finally, it's *freezing* cold here right now, but I promise more enjoyable meteorological conditions in April ! Ciao, -- FA Laboratorio di Acustica ed Elettroacustica Parma, Italia O tu, che porte, correndo si ? E guerra e morte !

16 years, 11 months

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Linux-audio-user January 2009