Linux-audio-user September 2010

linux-audio-user@lists.linuxaudio.org

150 participants
121 discussions

by ailo

I've been subscribing to a bug related to my soundcards of choice, namely M-Audio Delta cards (chipset: envy 1712). There has been a problem getting these cards to work with Pulseaudio for years now. https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/178442?comments=a… I've been reading about envy 1712 all over the web, more so last year, when I was trying my best to solve the problem on my own machine. One of the things I picked up was that there seemed to be a discussion on whether this is an Alsa bug, or a Pulseaudio bug. The bug itself makes it impossible to use audio inputs and outputs with Pulseaudio, only digital ins and outs are detected. Alsa, OSS and jack all work well with these cards but not Pulseaudio. So, is it Alsa or Pulseaudio that causes this? Who would one want to contact to fix this bug? (pretty soon there will be no computers left that supports these cards, so perhaps the problem will eventually solve itself). I have two machines with 1712 cards. The first one I use for everything, the second only for music production. On my Ubuntu Lucid machine, the Pulseaudio problem has caused a really nice side effect: I found that I can use Pulseaudio and jack at the same time, side by side (less reliable perhaps, but reliable enough for my needs). For this I need two soundcards. I use the built-in card for Desktop audio/Pulseaudio. The M-audio card I use only with jack, which I start from the terminal (Qjackctl suspends pulseaudio, but jack itself does not). This requires a physical mixer so that both soundcards can be fed to the same amplifier. This is the machine I use at home and I use it for everything. That is why I'd rather have a distro like Ubuntu installed on it. I do not require low latency at home, so performance is not my main criteria in this case. Even though Pulseaudio could be made to work with my M-audio card, I actually prefer this solution, because it enables me to run both Pulseaudio and jack at the same time, which otherwise would be impossible, to my knowledge. My Puredyne (based on Ubuntu, but comes without pulseaudio) machine is only used for music, and there are no problems getting M-audio cards working with that machine, for any intended purpose. Desktop audio is Alsa-based. Low latency and high performance is my first priority on this machine. For this purpose I don't use a distro like Ubuntu and I don't need pulseaudio. In the end, the pulseaudio related bug does note affect me anymore, but it does seem a little strange that the problem still persists. These chipsets must be some of the most popular, if not THE most popular among pro-audio users. They are cheap and perform well. The second hand market is huge. Surely there must be a way to fix the problem with getting pulseaudio to detect all channels of envy 17xx chipset based audio cards.

15 years, 4 months

Re: [LAU] New workstation | DAW pc

by rosea grammostola

On Fri, Sep 3, 2010 at 11:48 AM, Danni Coy <danni.coy(a)gmail.com> wrote: > 1) Obviously Sound card and Monitors are most important. Beyond that it > depends on the type of task. Softsynths will be typically be CPU limited, > Multitrack recording Harddrive IO limited. I would perhaps look at this page > for Ardour http://ardour.org/linux_system_requirements which basically > says that any modern hardware will be fine. > 2) Dual core should be fine, Quad cores will allow you to run more tasks at > once. Currently it seems that intel have best low power options with the > i3,i5,i7 series. AMD might be worth a lookin if you also want accerated > graphics on a budget. > 3) I built a system with the Antec P180 case about a 2 years ago. It worked > quite well. There may be better options now. > 4) Because I have a firewire based audio interface I have been going with > Gigabyte Mainboards (TI firewire onboard). > 5) Whatever you find a comfortable size to use. I have a 23 " in front of > me at the moment and it seems a pretty good size to work with. If you also > do a lot of photography or graphic design then I would look at either an > IPIS or PVA based monitor IPIS monitors typically start at 1000 dollars. > 6) Fans will largely depend on what else you end up doing. Larger fans > typically make less noise. > > Is it uberhaubt possible to have a low-power workhorse pc, to save energy? Which components are especially important here? \r

15 years, 4 months

[LAU] Audacity compressor in ardour and organising plug ins in audacity

by Thomas Hedegaard

Hi I just found out that I really like the compressor that is build into audacity. Is it available as a plugin you can use in ardour? Is there a way to organise plugins in audacity, so I see the plugs I use often on top? Best Thomas

15 years, 4 months

[LAU] simpel audio editor for both linux and win xp

by Thomas Hedegaard

Does any of you know of a simpel audio editor(no multitrack or undestructing editing) for editing and recording wav or mp3. It should be able to do normalising and comp/limiting and I need to see the actual wavefile, so that I have an impression on how much limiting/compression I need to do. I need it to be fast (single click normalising, single click limiting, single click export) It would be nice if it runs on both ubuntu and win xp(I cant skip xp because I need to run Sibelius6) I know sweep already.. Thank you, Thomas

15 years, 4 months

[LAU] RMLL2010 [Libre Software Meeting 2010] live-shows Ardour Sessions online

by Aurelien

Hello, After the sources of all Sebkha-Chott's and Lemurya's albums, the AMMD, being in charge of the lights, sound and stage management at the Libre Software Meeting 2010 in Bordeaux - France, did record the whole shows with ardour. The sources (ardour-sessions) of three of those live-shows are available online on archive.org[1][2][3]. The other live-shows will be put online as soon as we'll get the authorization from the musicians. [1] Enfants Terribles - HipHop / France http://www.archive.org/details/RMLL2010_20100706_EnfantsTerribles_Sources Band composition: vocals, samplers [2] Lessazo - World Music / France http://www.archive.org/details/RMLL2010_20100706_Lessazo_Sources Band composition: bass, guitar (electro-acoustic and electric), clarinet, flute, vocals (male and female), percussions (calebass), n'goni [3] Sebkha-Chott - Abstract HipHop | Concrete Violence | Mekanik Metal / Ohreland http://www.archive.org/details/SebkhaChott_20100710_Live_RMLL2010_Bordeaux_… Band composition: soft synths (AMS), sampler (Tapeutape), bass, guitar, drums, tubular bells, glockenspiel, saxophone, vocals Enjoy! -- Aurélien

15 years, 4 months

[LAU] ESI MaXiO 32e

by michael noble

Does anyone on list know anything about this card? http://www.esi-audio.com/products/maxio032e/ With 4 adat in and 4 adat out it would seem a reasonably priced alternative to the RME Raydat. Looking at the images I could find online, it seems they have gone with Xilinx (FPGA?) instead of ice1724. I presume this would make linux/alsa support tricky, but I'm way out of my depth and just speculating on this. -michael

15 years, 4 months

[LAU] EMutrix v0.1 released

by Camilo Polymeris

Hello EMutrix is a simple, easy-to-use graphical mixer application for EMU 1010 based cards like the E-MU 1212m, E-Mu 1616m and E-MU 1820 models. I am releasing the first source package of EMutrix, version 0.1 at http://emutrix.googlecode.com It is mostly functional, allowing arbitrary routing between the card's multiple inputs, outputs and ALSA, setting clock rate and pads. More features to come in future versions. Try it out if you have an E-Mu card! Any comments welcome. Greetings, Camilo

15 years, 4 months

[LAU] New book - anyone read it??

by Ketil Thorgersen

Hi list Searching for literature for a teacher training course I will be starting next year, I found the following book from 2010: "Free Music Software: Gnu Lilypond, Mplayer, Ffmpeg, Supercollider, Audacity, Ardour, Impro-Visor, Jokosher, Sox, Jfugue, Musescore, Qtractor" by LLC books. http://www.amazon.com/Free-Music-Software-Supercollider-Impro-Visor/dp/1156… There are no reviews to be found or anything so I was wondering if anyone here has any experience with it. What kind of book is it? Is it worth buying? Who has written it? Best regards Ketil Thorgersen

15 years, 4 months

Re: [LAU] New book - anyone read it??

by Kjetil S. Matheussen

Ketil Thorgersen: > > Hi list > > Searching for literature for a teacher training course I will be > starting next year, I found the following book from 2010: > > "Free Music Software: Gnu Lilypond, Mplayer, Ffmpeg, Supercollider, > Audacity, Ardour, Impro-Visor, Jokosher, Sox, Jfugue, Musescore, > Qtractor" by LLC books. > http://www.amazon.com/Free-Music-Software-Supercollider-Impro-Visor/dp/1156… > > There are no reviews to be found or anything so I was wondering if > anyone here has any experience with it. What kind of book is it? Is it > worth buying? Who has written it? >From http://booksllc.net/faqs.cfm: " The book has no author. Who wrote it? Content in books with no author usually comes from Wikipedia. If you own the book please check the book's bibliographic page, introduction and the end of each chapter for further details. For example, you can click the hyperlink at the end of any chapter and then click the history tab to see a list of each chapter's contributors. Otherwise, please click the Details link on the search results page for details. "

15 years, 4 months

Re: [LAU] Jackdbus realtime

by Goran Mekić

On Thu, 02 Sep 2010 01:55:51 +0300, Nedko Arnaudov <nedko(a)arnaudov.name> wrote: > Hi Goran! > > I've never used set_rlimits myself so please excuse me if I'll give you > wrong advices. > > Probably the best way to run jackdbus with realtime privileges will > be to edit this file: > > /usr/share/dbus-1/services/org.jackaudio.service > > It contains the commandline that D-Bus session daemon uses to start > jackdbus when it is needed. > > I'm not sure how set_rlimits is used but if I got it right, you have to > start jackdbus through it. Starting jackd(bus) through set_rlimits is just one step. I wanted to know how to pass realtime option (it's -R for jackd if I remember correctly) when jackdbus accepts "auto" as the only argument (config file or something?) > Do you start other audio apps through set_rlimits? If so you may want > to run ladishd through set_rlimits as well. Its dbus service file is: > > /usr/share/dbus-1/services/org.ladish.service > > All apps are started by ladishd. gladish is just a GUI that talks to > ladishd. Or you can specify set_rlimits in the commandlines for apps but > I think this will be quite wrong approach in general. Setting ladishd through set_rlimits would be the way to go, I think. > Other possibility is to start the D-Bus session daemon through > set_rlimits but how to do it depends on how tge session daemon is > started on your machine. No, that would be wrong. One would want only some apps/daemons with rlimits. > Please, tell me whether these advices are helpful. I think it will be > useful if the ladish.org wiki has a page that describes how to properly > setup computers for using set_rlimits. Also you are more than welcome to > join the ladish mailing list and/or join the IRC channel where people > using ladish share thoughs about ladish functionality and the problems > they have. I think this is helpful, but I can not test it at work. I have rehearsals and some work to finish, so I hope I'll get back to you with the info this week. Thanx anyway! -- FreeB(eer)S(ex)D(rugs) are the real daemons

15 years, 4 months

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Linux-audio-user September 2010