Linux-audio-user July 2010

linux-audio-user@lists.linuxaudio.org

129 participants
113 discussions

by Chris Cannam

My home stereo is a pretty old-fashioned thing, and mostly I like it that way -- I have a record player that's a bit older than me, a CD player and amp about a decade old, and a couple of speakers. Occasionally I plug in a portable mp3 player. But I wouldn't mind adding some sort of "proper" box that can play audio files from hard disc. I suppose I want something that looks and operates much like a hi-fi component but that is just a PC on the inside. It must have its own storage, and not just expect to stream from another computer; must have a display on the front, and not just expect to be connected to a screen; should be mains-powered and quiet; CD-style transport buttons and some sort of selector dial on the front would be nice, rather than requiring a remote; wireless networking would be nice too; CD drive for ripping handy but inessential. Questions: 0. This must exist already as a consumer product, right? Where can I buy one? 1. Can anyone point me to a small PC case that could be used to build one? 2. What would you use to play audio files (gaplessly) using a dedicated LCD display as the user interface, on Linux? 3. Any thoughts on soundcard hardware for a device like this? The Brennan JB7 player (http://www.brennan.co.uk/) is not far off the sort of thing I'd like, but it has no networking (copying from USB drives only). This case: http://www.origenae.co.kr/en/htpc_m10.htm looks like a smart place to start, but no controls except a hugely overspecified remote -- obviously for home theatre rather than just audio -- and expensive for something that isn't really ideal. Any ideas? Chris

14 years, 10 months

JACK Network Manager 0.2.3

by Mike Cookson

JACK NetSource GUI is renamed to JACK Network Manager (jack-netmanager-gtk), since jack_netsource is only a command line front-end for jack netmanager module. Changes: - Name changed from jack-netsource-gui to jack-netmanager-gtk (humany name - JACK Network Manager), since jack_netsource is just a wrapper, controlling jack "netmanager" module. - Presets support, deprecating creation of script with tray support, due to ability to reuse ordinary scripts by JACK Network Manager itself. During of preset saving name is requested and approriate script is stored in presets directory. - Ability to start sources at LADISH rooms. - ladish_launch is deprecated. ladish_control snewapp and rnewapp commands used instead. - Improved desktop launcher - New system tray icons; added application icon, unwantedly removed from 0.2.2 - Fixed help text - Options for jack_netsource from various jack versions are stored in separated file now - Internationalization of bash scripts through gettext - Build system improvements: all text files are configured - e.g., instalation prefix now is working. Configured files are stored into separate build directory, which is autonomous and can be distributed. Also, uninstalation is available. - Internationalization improvements: added update-locales script, which updates template with translations at once, and localization of bash scripts through gettext. Note for distribution maintainers: if you place menu items for special audio software into extra submenus inside standart Audio menu, it would be nice to have JACK Network Manager item in one place with QJackNet (at least) and QJackCtl. And create dummy jack-netsource-gui package for smooth upgrade. Page at GTK-Apps: http://gtk-apps.org/content/show.php/JACK+Network+Manager?content=122327 Latest screenshot is third.

14 years, 10 months

Live sounds?

by Andrew Gaydenko

Does anybody know about free collection of high quality live sounds? Saying "high quality", I mean good and short mics - tube-micamp - adc chain with minimal or zero postprocessing. Saying "live sounds" I mean something as simple as winecup boom, moving nail across guitar bass string wound, match igniting, different small bells, door squeak, tree squeak, midge cheep and so on :-) I see, I can record all these myself, but my mics and micamp are far from be the best. Andrew

14 years, 10 months

lots of broken audio dev packages in ubuntu 10.4

by Atte André Jensen

Hi I have lot's of broken -dev packages (refusing to install) in my ubuntu system: atte@vestbjerg:~$ sudo apt-get install libgtkmm-2.4-dev Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: libgtkmm-2.4-dev: Depends: libgtkmm-2.4-1c2a (= 1:2.20.2-1) but 1:2.20.3-0ubuntu1 is to be installed Depends: libgtk2.0-dev (>= 2.20.0) but it is not going to be installed Depends: libglibmm-2.4-dev (>= 2.24.0) but it is not going to be installed Depends: libatk1.0-dev (>= 1.12.0) but it is not going to be installed Depends: libcairomm-1.0-dev (>= 1.2.2) but it is not going to be installed Depends: libpangomm-1.4-dev (>= 2.26.0) but it is not going to be installed E: Broken packages Am I doing something wrong or missing something? -- Atte http://atte.dk http://modlys.dk

14 years, 10 months

Free sonic event in Sheffield tomorrow 23rd July

by Jake Harries

Hi A quick reminder of tomorrow's free sonic event at Access Space. best Jake SONIC EVENT 1 Friday 23rd of July 2010 6.00pm - 9.00pm @ Access Space - FREE Facebook event http://tinyurl.com/35bd76l Performances by artists in and around the South Yorkshire region using Open Source software and recycled technology: Alo Allik - f(x) - an audiovisual exploration of 3-dimensional continuous spatial functions using SuperCollider and OpenGL http://tehis.net Neal Spowage - Ghetto Bastard - a performance with recycled technology: a bastardised radio cassette player utilising radio static, interference, body resistance, acoustic feedback and mechanical noise. www.nealspowage.com Monika Dutta and David Mutch - Kindle - performance premier of new work created with Pure Data, video and live animation inspired by climatic concerns, alternative energy and the light and vistas of East Yorkshire's coastal region. www.foggedfilm.org Access Space, 3-7 Sidney St, Sheffield S1 4RG, UK Reg. Charity 1103837 t: 0114 249 5522 w:www.access-space.org e: jake(a)access-space.org <<<<<<<<<<<<<<<<<<<< Supported by the National Lottery through the Arts Council England. <<<<<<<<<<<<<<<<<<<<

14 years, 10 months

recording videos for youtube with a webcam under linux, success!

by Loki Davison

Hey All, Thanks for the help with recording, they are on youtube! http://www.youtube.com/user/MrLokiMissSeraphim I've finally got VLC to work recording the videos, audio with straight alsa, then mencoder to convert. I need to start recording them in the correct aspect ratio for youtube though! Next challenge, multi-track audio with ardour synced to multitrack video and mix between the different videos of each instrument. Any hints on an NLE? Loki

14 years, 10 months

Qsynth and Midi Controller

by Caleb Hood

I have now been initiated into the world of jack and qsynth and was wondering if there was a way to assign the knobs on my el cheapo M-Audio Keyrig 25 to move the corresponding knobs on the qsynth gui. Sort of a 'midi learn' function.

14 years, 10 months

Wired... wires confused!

by Louigi Verona

Hey guys! I just discovered the Wired project. I think I've seen their site before but looked at it just now and installed it on my Ubuntu Jaunty (they have the 9.04 deb). What can I say? A pity. A pity that such a promising project, with beautiful GUI and seemingly a pretty solid workflow is dead. In fact, I am surprised that less appealing projects get developed while such a great Reason alternative which could solve many people's problems is just sitting there. I poked around it, but nothing seems to work. Somewhere it is mentioned that JACK should be supported, but it does not give me jack in the list of devices. It does give ALSA but on my rt kernel it doesn't glitch only on the maximum buffer (frames) setting, somewhere beyond 4000, giving a pretty large latency, unusable basically. I tried it again and later could get better latency though I chose same options. Needs researching. There seems to be a piano roll, but I could not yet figure out how it works. The drum machine works well, both samplers seem to work ok too, though what they play does not get synced to the drum machine or maybe I just did something wrong. Anyway. If I had any resources, I would put them to work on Wired. I mean, it looks great. Even their logo is super nice. Designers behind the team were really talented. Who thinks the way I do? -- Louigi Verona http://www.louigiverona.ru/

14 years, 10 months

New project for assessing the performance of piano pieces

by A. C. Censi

http://jtauber.com/blog/2010/07/19/czerny/ Czerny, named after Carl Czerny—the Austrian composer and piano teacher, is a early-stage Python project for assessing the performance of piano pieces. The idea came when I was doing Charles-Louis Hanon's Virtuoso Pianist exercises. My thought was that it would be nice if a program compared my performance with the score and indicated not only mistakes, but deviations in velocity and timing. -- A. C. Censi accensi [em] gmail [ponto] com accensi [em] montreal [ponto] com [ponto] br

14 years, 10 months

a gentle boxyseq composition

by James Morris

something arisen during development of http://github.com/jwm-art-net/BoxySeq http://jwm-art.net/art/audio/approaching.ogg made 2 and a half weeks ago. development is stalling over transport/timebase issues. anyway i think it demonstrates some interesting and/or nice sequences can arise from the concept of boxyseq. once it has a graphical user interface, more sophisticated compositions would be possible. james.

14 years, 10 months

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Linux-audio-user July 2010