Linux-audio-user August 2010

linux-audio-user@lists.linuxaudio.org

118 participants
112 discussions

by Renato

Hello, today I found in the dumpster this pc-keyboard which is neither ps/2 or usb, but has these two connectors which to me seem midi game and plain midi. http://imgur.com/1H72s.jpg I connected the midi plug (purple) to my soundcard but it doesn't seem to output any midi things (note on, off,cc etc.). Should it and it is just broken or do these gaming devices use a midi physical port but an entire different protocol than music-midi? thanks for any help, renato

15 years

Multimedia Network Synchronization

by Christoph Kuhr

Hi there, Im looking for a way to synchronize puredata, vlc and ardour over ethernet. Using ltc, mtc or smpte? Which software? Any ideas? Ck

15 years

and another AVSynthesis video

by Dave Phillips

Greetings, Mars Study #2 http://www.youtube.com/watch?v=6ptWPFS96Wk Another dark study, keep the lights down. I know, I know, YouTube sucks. So download the thing instead, it's a nice high-quality MP4. :) Btw, my videos are of course created entirely with Linux audio/video tools, including AVSynthesis (OpenGL + Csound) and Kdenlive. Best, dp

15 years

Re: [LAU] Udev error with CCRMA rt23 kernel

by M Watts

> On 07/21/2009 05:22 PM, James Cameron wrote: >> On Tue, Jul 21, 2009 at 05:07:56PM +1000, M Watts wrote: >> On a fresh Fedora 11 install (HP nc8000 laptop, 1.6 Ghz Pentium M), the >> Planet CCRMA kernel-rt-2.6.29.6-1.rt23.2.fc11.ccrma.i546.rt freezes on >> boot with: >> >> Starting udev: end_request: I/O error, dev fd0, sector 0 >> Buffer I/O error on device fd0, logical block 0 > I'm inclined to think that this error (end_request, Buffer I/O) is quite > normal for a laptop that presents a floppy drive to the kernel via the > BIOS yet doesn't have one ... Yes, and there's no option to disable it in BIOS. I never went further with this last year, as I just tried another kernel. But the problem recurred with my Fedora 13 install disc! One solution is to add floppy.allowed_drive_mask=0 to grub's kernel options :)

15 years

new AVSynthesis videos, new video channel

by Dave Phillips

Greetings, I now have a channel on YouTube : http://www.youtube.com/user/newnairobi1 At present I've put up videos of my AVSynthesis work and of my students playing in local recitals. More things coming soon, probably *not* family videos. Most recently I've placed some new AVS demonstrations on-line : http://www.youtube.com/watch?v=8ttkQzkW0e8 http://www.youtube.com/watch?v=peIdUpJ1nl4 http://www.youtube.com/watch?v=iAlb8DfEUCE In order, they present the Env Map, Warp, and Colorized Sobel shaders (aka transforms). Each video includes an original Csound audio track. These are demos, not complete pieces, but Csounders and other synthesists might find some of the sounds interesting. Some of the colors are nice too. :) Enjoy ! :) Best, dp

15 years, 1 month

sample preview program?

by Josh Lawrence

Hi everyone, Does anyone know of a simple application for previewing samples? Something that lists all supported audio files in a given directory, that you can click once and hear the sample? jack support would be necessary. I've searched the archives and found this question asked before, but I wasn't able to find an answer. Any pointers or suggestions would be very welcome. Thank you! -- Josh Lawrence

15 years, 1 month

Silence detection/automation

by Vruwink, Timothy Roger

Hi - I recently found out about JACK through SilentJack no less and realize I may have found a good tool to do silence detection for my audio streams. I've got Jack setup and running along with JackMeter and SilentJack. This is running on an OpenSuse box (11.3) running Gnome and qJackCTL. I am running VLC to open my audio streams (mix of Real, Windows, MP3, Quicktime). Does anyone have any tutorials for automating Jack though? It seems cumbersome to have to recreate the various audio connections (say after rebooting). I don't see a way to statically assign output ports using VLC. Ideally, I'd like to automate as much as possible upon logging into the machine. Last question - Does anyone have any examples of scripts to run after SilentJack has detected silence? Obviously, I was thinking about an email alert. I wasn't sure about the syntax needed though. Thanks for any help or pointers. Tim

15 years, 1 month

[Fwd: Re: Silence detection/automation]

by Georg Rudolph

> On Tue, 17 Aug 2010 15:48:09 +0100 > Harry Van Haaren <harryhaaren(a)gmail.com> wrote: > >... > The problem I've always had with VLC is that it disconnects and > reconnects after every track -- and that to system out 1 & 2 > respectively. So if you are trying to route VLC somewhere else across > multiple tracks, you need a way to automate a reconnect. > > If anyone has a workaround for this behavior, I'm all ears. > > David > Hello David, The patchbay of qjackctl can do that nicely, it even supports regexp when ports carry the pid in their names. See the syntax when qjackctl suggests connecting qsynt, for example. qjackctl is great! By running applications with different jack-names I can easily manage a few setups, qjackctl will not joke on many potential connections. After some practice setting it up is very quick. The rule is: You only connect the patch, the ports of the patch are then connected serially, if available. Slices of an audio buses need just separate patches. Regards, Georg

15 years, 1 month

article on athenaCL

by Dave Phillips

Greetings, Some of you might find this article interesting : http://www.linuxjournal.com/content/algorithmic-music-composition-linux-ath… It's a unique system, very powerful. Best, dp

15 years, 1 month

Houseman - Tranquility (album made with GNU/Linux)

by Louigi Verona

Houseman is my side project aimed at repetitive music. I've always wanted to do some "boring house", but each my attempt often took me much farther and I would end with a melodic track. So Houseman is a project which does no such thing. It takes the music no further that repetitive stuff usually goes. However, another thing typical for Houseman is that tunes sometimes develop in unpredictable ways, so that the track begins with one thing, but ends with a completely different sound. Do listen to the debut album. "Tranquility", second album, however, I am also very happy with. A very tasty album, with a bit of an oldskool raw flavor to it and composed fully on GNU/Linux, using Hydrogen, Qtractor, CALF Fluidsynth and Rakarrack. Patchage, a2jmidi and JACK Keyboard were also important tools in the work. http://www.louigiverona.ru/?page=projects&s=music&t=houseman&num=1 -- Louigi Verona http://www.louigiverona.ru/

15 years, 1 month

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Linux-audio-user August 2010