Linux-audio-user October 2008

linux-audio-user@lists.linuxaudio.org

125 participants
97 discussions

Re: [LAU] Simple, easy multithreaded circular buffer library for Linux?

by Leslie P. Polzer

> I'm being lazy, so instead of researching everything that's out there, I'll ask here: > can anyone recommend a relatively simple and painless abstraction library (GPL or LGPL > of course) that will give me functions to create a thread in which I can stuff things > into a ring buffer, and another thread in which I can pull stuff out of it? http://jack-rack.cvs.sourceforge.net/viewvc/jack-rack/jack-rack/src/lock_fr… http://jack-rack.cvs.sourceforge.net/viewvc/jack-rack/jack-rack/src/lock_fr… JACK Rack provides a usage example, of course. You using C(++)? Any reason you're not giving a dynamic language (Common Lisp comes to mind) a shot? Leslie

16 years, 1 month

file browser in qtractor?

by Grammostola Rosea

Hi, Is it possible to have a file browser in Qtractor like you have in energyxt or lmms? In qtractor I only see the files which I have added as track or midi. Wouldn't it be useful if I have a browser so I can easily pick out some samples from my 'samples' directory, some midi files from my 'midi' directory, saved project files etc. ? Regards,

16 years, 1 month

Ubuntu Studio 8.04 & Oxygen8 Problem

by Dan Richert

I tried following the instructions at http://ubuntuforums.org/showthread.php?t=455902 for setting up the Oxygen8 keyboard on Ubuntu Studio 8.04, but it's not showing up in lsusb. I only see my USB mouse. Any ideas on what could be going wrong? Thanks. -Dan

16 years, 1 month

Simple, easy multithreaded circular buffer library for Linux?

by Ken Restivo

It has been over 7 years since I last messed around with writing Pthreads applications. I recall it as a painful, ugly, brain-numbing task. I located an exercise I did back then to address the consumer/producer problem in Pthreads, and just the sight of it is giving me a headache. I also vaguely recall that some GUI-related libraries like Glib and QT offered built-in abstractions to make multithreaded apps and common constructions like circular buffers much easier. I'm being lazy, so instead of researching everything that's out there, I'll ask here: can anyone recommend a relatively simple and painless abstraction library (GPL or LGPL of course) that will give me functions to create a thread in which I can stuff things into a ring buffer, and another thread in which I can pull stuff out of it? By the way, I know that JACK has a very nice event buffer which is insanely easy to use (and I have), and makes multithreading almost transparent, but this isn't a JACK app. -ken

16 years, 1 month

Re: [LAU] hip hop / making beats

by Grammostola Rosea

Johannes Mario Ringheim wrote: > Grammostola Rosea skreiv: >> Hi, >> >> I'm looking for software which I (or a friend) can use for making >> beats for hip hop / rap music. >> It should be easy to learn software with gui and as much click 'n run >> as possible! > > Check out Freecycle: http://freecycle.redsteamrecords.com/ > Renoise: http://www.renoise.com/ > > And Hydrogen, as someone else suggested. > > Keep in mind that you can sync Hydrogen and Ardour, which might come > in handy when you're gonna record the vocals, or record samples or > scratches from the turntable. > Thanks for the information. Now I'm looking for an hip hop artist who uses Linux for her/ his music.

16 years, 1 month

Re: [LAU] hip hop / making beats - that reminds me doe any remember that snazzy little drum program

by Ronald Stewart

Re: [LAU] hip hop / making beats - that reminds me doe any remember that snazzy little drum machineapp that came out back in May or June? I know this is vague but it was called maybe xr-7 or something? had 16 pads looked like a 707 meets 303 or groove box? any help would be great! thank you ron stewart www.indamixx.com On Mon, Oct 13, 2008 at 2:40 PM, Ronald Stewart <ronaldjstewart(a)gmail.com> wrote: > you cannot compromise your DJ learning and execution with anything but > 1200's period..... > > ron stewart > www.indamixx.com > > On Mon, Oct 13, 2008 at 12:42 PM, Johannes Mario Ringheim > <jri(a)broadpark.no> wrote: >> Grammostola Rosea skreiv: >>> What are good but cheapo turntables? Maybe I can buy one second hand... >> >> PS: Check out turntablelab, especially: >> http://www.turntablelab.com/dj_equipment/1/18/ >> >> Now, second thought, the Vestax QFO looks kinda good, but be sure to >> read every review you can find thoroughly before settling for anything >> other than the Technics SL12xx >> >> -- >> Ringheims Auto - Fri musikk for bilstereo! >> http://ringheimsauto.org >> _______________________________________________ >> Linux-audio-user mailing list >> Linux-audio-user(a)lists.linuxaudio.org >> http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user >> >

16 years, 1 month

MIDI players

by Bob van der Poel

Does anyone have a pointer for midi file players with a GUI that can change the tempo while playing? This is just for playing MIDIs from a computer to an external synth. I don't need any of the soft synth stuff. The only player I use with regularity is aplaymidi, but it's a command line program. I've tried kmid which would be fine but the output it generates is "weird". I'm not sure what it is doing, but the sound is distorted. I've tried to contact the author, but no success. Also, there is the old playmidi, but I can't get it to output to the alsa midi stuff. It appears to work, but no output. That leaves me with stuff like rosegarden ... overkill to just play a midi file. I'd hate to start to write my own, just to find a decent one which works. -- **** Listen to my CD at http://www.mellowood.ca/music/cedars **** Bob van der Poel ** Wynndel, British Columbia, CANADA ** EMAIL: bob(a)mellowood.ca WWW: http://www.mellowood.ca

16 years, 1 month

Jack MIDI / Alsa MIDI ?

by Jostein Chr. Andersen

Hi, this is probably a stupid question, but please, have some tolerance for an overloaded brain. :-) I'm sitting with qjackctl in the front of me and wonder after hitting its "Connect" button: Why both Jack MIDI and Alsa MIDI? As far as I can see, all my MIDI equipment are connected to ALSA MIDI and I do only recall that I've seen one or two apps using Jack Midi. And if more apps are using Jack MIDI, can it communicate with the ALSA MIDI connections? Thanks, Jostein

16 years, 1 month

Linux vst (esp. qtractor)

by Grammostola Rosea

Hi, I just want to explore the vst possibilities on Linux. Which apps are good 'hosts'? ardour (not realy i think) LMMS ? Qtractor? I'm especially interesting in the possibilities of Qtractor in this area. How should i compile qtractor to enable vst? How good is the support? Where can I find more information about it? Regards

16 years, 1 month

Re: [LAU] hip hop / making beats

by Grammostola Rosea

Dave Phillips wrote: > Grammostola Rosea wrote: >> I'm looking for software which I (or a friend) can use for making >> beats for hip hop / rap music. >> It should be easy to learn software with gui and as much click 'n run >> as possible! >> > Look at Freecycle: > > http://freecycle.redsteamrecords.com/ > That looks great, although I didn't really understand what for the app was exactly till I saw this video http://www.propellerheads.se/products/recycle/index.cfm?fuseaction=get_arti… ;) Is there a difference when you change tempo in ardour/rosegarden etc or freecycle? they say freecycle keeps the groove, but isn't that also the case for the other apps? Regards,

16 years, 1 month

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Linux-audio-user October 2008