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20662 discussions

Re: [LAU] VJ / VeeJing software alternatives

by Carlos sanchiavedraz

2014-07-18 20:35 GMT+02:00 Michal Seta <mis(a)artengine.ca>: > Recently I stumbled upon this thing: > https://code.google.com/p/glmixer/ > > > > Michał > Had some time to try to compile it, and after a while I succeeded (inside Musix3=Debian Wheezy, and Ubuntu 12.04). Really good looking, the workflow is a little different from the normal kind of launch-sampler screens and such, but really interesting. If you are familiarized with tools that are present in video or image editors (Align, Crop, Stretch, Rotate) you get an idea of it to make some quick demos. The only problem is that after a while working with it, video-loops started to get stuck and if you restarted again GTmixer you got an error, and you had to restart session (or do some investigations to see what thread to kill to prevent this) to be able to work again on it. It perhaps is due to running it at the same time with some other audio programs and Jack, but not clear yet. Anyway, really interesting application. I'm working on it. > > On Fri, Jul 18, 2014 at 1:23 PM, Carlos sanchiavedraz <csanchezgs(a)gmail.com> > wrote: >> >> 2014-07-18 13:20 GMT+02:00 Florent Berthaut <florent(a)hitmuri.net>: >> > On 18/07/14 11:54, Carlos sanchiavedraz wrote: >> >> >> >> Hello dear all. >> >> >> >> >> >> Any suggestions or experiences? >> >> Thanks as always. >> > >> > >> > Hi Carlos, >> > >> > I have been developing a VJiing software for a while, called VJPirate >> > (http://hitmuri.net/index.php/Software/VjPirate) >> > It still needs a lot of rewriting and redesigning on the interface side >> > but >> > is usable and has been used for quite a while by a friend i am playing >> > with >> > (you can see some example of live perfs where the visuals are done with >> > VjPirate on http://thehobartphase.net) >> > It works on GNU/Linux and MacOSX. >> > It is based on the principle of grids of images / shapes with >> > parameters, >> > and you can define patterns of scales for the parameters so that a >> > change in >> > the parameter impacts the whole grid. Everything can be MIDI, Audio and >> > OSC >> > controlled. You can extract different features from the audio (loudness, >> > brightness, onsets ...) and use them to control visual parameters. >> > >> > If you want to try it, you should grab the development branch (called >> > mac >> > but it works on linux) on: >> > https://code.launchpad.net/~hitmuri/vjpirate/mac >> > >> > Let me know if you have any questions. >> > >> > Regards, >> > >> > Florent >> > >> > -- >> > http://hitmuri.net >> > >> > _______________________________________________ >> > Linux-audio-user mailing list >> > Linux-audio-user(a)lists.linuxaudio.org >> > http://lists.linuxaudio.org/listinfo/linux-audio-user >> >> BTW, I've realized your web, Hitmuri.net. IIRC, You had Freewheeling >> videos jamming and livelooping with an electronic drumkit long time >> ago, Were you? I enjoyed them very much. Freewheeling always have been >> my favourite livelooper, but lately I'm using sooperlooper because you >> can run it without X on a Raspberry PI, and it seems FW can't (I'm >> sure there is a way, but didn't researched it yet). >> >> It seems somebody in the FW is reviving it. It would be great. >> >> -- >> >> C. sanchiavedraZ: >> * NEW / NUEVO: www.sanchiavedraZ.com >> * Musix GNU+Linux: www.musix.es >> _______________________________________________ >> Linux-audio-user mailing list >> Linux-audio-user(a)lists.linuxaudio.org >> http://lists.linuxaudio.org/listinfo/linux-audio-user > > -- C. sanchiavedraZ: * NEW / NUEVO: www.sanchiavedraZ.com * Musix GNU+Linux: www.musix.es

11 years, 3 months

General Audio question - soft recording and bad SNR?

by Oon-Ee Ng

Hi, I'm running Arch Linux 64-bit with jack2. I have a USB UA-25EX to which I connect a Shure SM75. I don't do much recording, and at a very amateur level for various volunteer projects. The maximum volume I get from my Shure SM75 seems very low. The result of this is when I normalize I get fairly significant background hum. Increasing the UA-25EX's gain just causes peaking at louder volumes, so no solution there. This happens with both Audacity and Ardour, so should not be software-related. Any suggestions as to what I should investigate? A bad mic (I did check, its not a knock-off)? Electrical noise from my laptop (used to use a different laptop but from the same manufacturer, same results from both). Jack settings?

11 years, 3 months

VJ / VeeJing software alternatives

by Carlos sanchiavedraz

Hello dear all. Not long ago here there was a thread about video software and how it sucks or not. I wonder if any of you know a decent alternative for VJ software. It seems that LiVES should be some choice, but it's a little tricky and I don't see it has same workflow as others in the sense of launching video clips and such. There is also Freej, and Veejay but you have to compile it and it has client and server side. Here is an article about: http://linux.about.com/od/mediaplayers/a/Vj-Tools-For-Real-Time-Audio-Visua… Any suggestions or experiences? Thanks as always. -- C. sanchiavedraZ: * NEW / NUEVO: www.sanchiavedraZ.com * Musix GNU+Linux: www.musix.es

11 years, 3 months

Testing VJPirate, Was:Re: VJ / VeeJing software alternatives

by Carlos sanchiavedraz

Hello again, Florent. (Keep the list on CC FWIW). I managed to guess the libraries needed to compile VJpirate with scons, as it says in the web, but I've come to a dead end, or so it seems. Maybe it rings a bell on you, It says something libxtract.h. No such file or directory" but can't find which lib is required for libxtract; nothing in repos related. Compiling info: " [...] Checking for fltk-config...yes scons: done reading SConscript files. scons: Building targets ... Compiling src/audio/AnalysisManager.o In file included from src/audio/AnalysisManager.cpp:24:0: src/audio/AnalysisManager.hpp:35:30: fatal error: xtract/libxtract.h: No such file or directory compilation terminated. scons: *** [src/audio/AnalysisManager.o] Error 1 scons: building terminated because of errors. " Thanks in advance. 2014-07-18 13:20 GMT+02:00 Florent Berthaut <florent(a)hitmuri.net>: > On 18/07/14 11:54, Carlos sanchiavedraz wrote: >> >> Hello dear all. >> >> >> Any suggestions or experiences? >> Thanks as always. > > > Hi Carlos, > > I have been developing a VJiing software for a while, called VJPirate > (http://hitmuri.net/index.php/Software/VjPirate) > It still needs a lot of rewriting and redesigning on the interface side but > is usable and has been used for quite a while by a friend i am playing with > (you can see some example of live perfs where the visuals are done with > VjPirate on http://thehobartphase.net) > It works on GNU/Linux and MacOSX. > It is based on the principle of grids of images / shapes with parameters, > and you can define patterns of scales for the parameters so that a change in > the parameter impacts the whole grid. Everything can be MIDI, Audio and OSC > controlled. You can extract different features from the audio (loudness, > brightness, onsets ...) and use them to control visual parameters. > > If you want to try it, you should grab the development branch (called mac > but it works on linux) on: https://code.launchpad.net/~hitmuri/vjpirate/mac > > Let me know if you have any questions. > > Regards, > > Florent > > -- > http://hitmuri.net > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user -- C. sanchiavedraZ: * NEW / NUEVO: www.sanchiavedraZ.com * Musix GNU+Linux: www.musix.es

11 years, 3 months

Sound Chip as a synthesizer on Linux. Thoughts, ideas?

by Fede

Hi all, I have a question on a topic not frequently addressed here, but why not just asking? Do any of you run some old sound blaster/adlib/gravis ultrasound card? I mean the ones with chip synthesizers. Just started reading a lot about the commodore 64's SID and just found out lot of my childhood's games actually run the audio on actual synths, which freaked me out totally. It would be nice to have any kind of synth chip running as a hardware synthesizer on a linux computer, really. In my country, the only PCI card with an OPL compatible chip is the YMF744b, which seems to be supported by ALSA. Getting that would mean starting to search for methods to create .o3 (instrument patches) files to be loaded to the card, for which there seems to be no dedicated native linux software. Maybe through DOSbox? Anyway. These are still just ideas, because the topic is very vast; there are lots of different sound chips, and I'm even considering getting a c64 to use it as a sort of assembler csound, if that makes sense. People familiar to the demoscene are aware of these kind of devices' powerfulness, but most of that that I've witnessed is tempered scale based and traditionaly rhythmically structured (and they really rock it that way), but it would be interesting (to me, anyway) to experiment creating sound textures and evolving timbres on these sort of hybrid soft-hard synths. *I might be missing lots of important details on the subject* So, do you people have any way to enlighten me on this? Any thoughts or ideas? Thanks a lot, really. Fede

11 years, 3 months

Installing VJPirate error

by Kaza Kore

Florent. I tried to compile VJPirate and get his message. Originally had a missing fltk message but managed to work out what to install to clear that easily. This is more confusing to me though, as I know I have Jack and obviously I have ALSA. Using Ubuntu Studio 12.04 although I do also have the KXStudio repositories enabled, which I sometimes wonder causes a bit of confusion... $ scons scons: Reading SConscript files ... Checking for g++...yes Checking for C header file jack/jack.h... yes Checking for C header file alsa/asoundlib.h... yes Checking for C library xml2... yes Checking for C header file xtract/libxtract.h... yes Checking for C header file X11/xpm.h... yes Checking for C header file X11/Xlib.h... yes Checking for C library png... yes Checking for C library jpeg... yes Checking for C header file aubio/aubio.h... yes Checking for fltk-config...yes Package libxml-2.0 was not found in the pkg-config search path. Perhaps you should add the directory containing `libxml-2.0.pc' to the PKG_CONFIG_PATH environment variable No package 'libxml-2.0' found Package alsa was not found in the pkg-config search path. Perhaps you should add the directory containing `alsa.pc' to the PKG_CONFIG_PATH environment variable No package 'alsa' found Package jack was not found in the pkg-config search path. Perhaps you should add the directory containing `jack.pc' to the PKG_CONFIG_PATH environment variable No package 'jack' found Package aubio was not found in the pkg-config search path. Perhaps you should add the directory containing `aubio.pc' to the PKG_CONFIG_PATH environment variable No package 'aubio' found OSError: 'pkg-config --libs --cflags libxml-2.0 alsa jack aubio' exited 1: File "/home/dale/Downloads/debs/vjpirate-0.0.1/SConstruct", line 88: env.ParseConfig('pkg-config --libs --cflags libxml-2.0 alsa jack aubio') File "/usr/lib/scons/SCons/Environment.py", line 1551: return function(self, self.backtick(command)) File "/usr/lib/scons/SCons/Environment.py", line 593: raise OSError("'%s' exited %d" % (command, status)) > From: csanchezgs(a)gmail.com > Date: Sat, 19 Jul 2014 13:47:50 +0200 > To: florent(a)hitmuri.net > CC: linux-audio-user(a)lists.linuxaudio.org > Subject: Re: [LAU] VJ / VeeJing software alternatives > > 2014-07-19 13:13 GMT+02:00 Florent Berthaut <florent(a)hitmuri.net>: > > On 18/07/14 18:23, Carlos sanchiavedraz wrote: > >> > >> > >> BTW, I've realized your web, Hitmuri.net. IIRC, You had Freewheeling > >> videos jamming and livelooping with an electronic drumkit long time > >> ago, Were you? > > > > > > yep, a long time ago ;-) > > > > > >> I enjoyed them very much. > > > > Thanks > > > > > >> Freewheeling always have been > >> my favourite livelooper, but lately I'm using sooperlooper because you > >> can run it without X on a Raspberry PI, and it seems FW can't (I'm > >> sure there is a way, but didn't researched it yet). > >> > >> It seems somebody in the FW is reviving it. It would be great. > > > > > > > > That would be nice indeed, i've stopped using it and build my own looper > > instead, but i borrowed a lot of ideas from it. > > I guess that's VJPirate, right? > > > The gui was really interesting, it would have been nice to try to project it > > directly onto the controller, having the loops displayed on the keys/pads > > ... > > > > That would be great, and having FW in a touch interface. I achieved > this one time on some touch device (not mobile/tablet on those days > yet) where I managed to put Musix into it and just touch buttons with > fingers while jamming, that was very easy and intuitive way. > Now I'm trying something in that way but with mobile devices and > tablets, but audio stuff and drivers on devices with > Android/FirefoxOS/something with Linux is a nightmare yet. But it > seems it's getting better with some future changes related to USB > audio. > > > florent > > > > -- > > http://hitmuri.net > > > > > > -- > > C. sanchiavedraZ: > * NEW / NUEVO: www.sanchiavedraZ.com > * Musix GNU+Linux: www.musix.es > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user

11 years, 3 months

RT kern for Raspberry Pi?

by Ken Restivo

Has anyone built one, i.e. off of latest Raspbian release, and made it available as a deb? For a while I thought about building one, but I kind of lost interest. Now feeling lazy and wondering if someone's already done it.

11 years, 3 months

jack performance in ubuntustudio

by James Stone

I've just done some quick testing of AVLinux vs. Ubuntustudio, and the performance of jackd is significantly worse on ubuntustudio.. On AVLinux, I can start up jack (0.121.3) with 32 frames, and CPU runs around 3%. On Ubuntu (jackd 1.9.10), I am getting 30%+ with the same settings. Checking top, I am getting pulseaudio at 30% and jackdbus at 20%.. Killing pulseaudio, jackdbus goes down to 13%, but this is still significantly worse than avlinux.. I'm wondering if it is due to differences in new vs. old jack, or if there is something else I can tweak? James

11 years, 3 months

Re: [LAU] music software for kids

by Fede

And the due on topic reply: http://soosck.wordpress.com/2010/12/09/open-source-music-games-linux/ Bye! -- Fede <federicogalland(a)gmail.com>

11 years, 3 months

DIY digital control surfaces

by Len Ovens

I seem to have gotten an itch to make some control surfaces for my home recording system. The first thing I find is that hardware is expensive and software is cheap (money wise, time is something else). Fewer pots and switches costs less and so they need to be multi-functional. This means momentary switches with coloured lights in them, rotary encoders, and motorized faders. So, how about a touch surface? 7inch android things don't cost much and have wireless and stuff... and play games when we are bored ;) with a touch surface you have to watch what you are doing all the time, real knobs and sliders let you feel. digital mixers use a mix of things... but no mouse that I have seen. Generally at least one touch screen though. It is used for all the stuff that is hard to use controls for. But also for remote control. The diy sites show the rotary encoders with light strips to show position, but I don't see this on the mixers... they give feedback through the touch screen instead. The encoder is $2, the light strip is $15. I am not sure what the interface is like, but it would seem simpler than a pot. Encoders are fine for starting from where I am and moving, but for some things a fader is still needed. If it is going to be used for more than one thing, it needs to be motorized. This doesn't seem too bad at $20 for the fader/motor combination.... but the support stuff has to be there too. It needs a motor driver, encoder and (so they say) touch sensing so the motor won't fight against your finger. There seem to be "brains" out there with switch and analog inputs with USB or midi ports. (and led outputs) Ya the stuff is all there. Some other ideas: for faders on a touch pad (screen or drawing pad or whatever) The point where the fader is right now does not matter, only that it can be moved in the right direction without jumping to whereever the finger first touches, tactile feel could be added plastic template that has slots where the faders are supposed to be. This would be cheap to try (compared to building just about anything) and I have wanted a drawing tablet to try other things anyway. For switches the keyboard has got to be the cheapest thing... only one thing is focus changes. Linux is very nice in recognizing and using new USB things. If I plug in a second keyboard, I now have two keyboards that do the same thing (mice work this way too). I want to use the second keyboard as direct input for my own program that takes key presses in and puts midi messages out to a jack port. In fact it may be an interesting tool to make a keyboard driver that uses one key to switch modes between midi mode and keyboard mode on the main keyboard even. (that strange flag key for example) Anyway, is there an easy way to grab a keyboard device before the system does? This looks to be /dev/input/event7. There is a utility called actkbd that reads this. And I guess it can run a script for any one key or just output to stdout the key press. Anyone have a better idea? -- Len Ovens www.ovenwerks.net

11 years, 3 months

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