Linux-audio-user November 2008

linux-audio-user@lists.linuxaudio.org

174 participants
151 discussions

automated recording / processing / encoding to mp3

by Brian Dunn

LAUsers: I am trying to set up a box in a sound booth to take in a mono analog speech signal off of a board and then eventually output a id3 tagged mp3. * easy to for myself and the other (non linux user) sound team members. * be capable of capturing for <= 2 hours. * simple id3 tagging (allow user to set the speaker and the title ) * apply compressor, remove DC offset, and normalize. * encode as mp3 with reasonable quality for a voice recording (any suggestions here?) My first thought for capturing the signal was Ardour (of course), but now I'm thinking that may be overkill. It may be best to have the whole thing be basically a script. to that end, * a good command line DAW? * minimum hardware for the computer / sound card? * anyone built a similar automated chain? * any other suggestions? thanks. /brian

16 years, 4 months

looking for JACK compatible screencast recorder

by nescivi

Hiho, I am looking for an app that can record screencasts, that is JACK compatible for the sound part. I have tried Istanbul, but that one does not support JACK, so I cannot record sound if I am using JACK. Anyone got a tip for an app that's easy to set up and use? sincerely, Marije

16 years, 4 months

The Drummer's Jigsaw

by Philippe Hezaine

So the Drummer's puzzled. And so I. -- Phil. Superbonus-Project (Site principal) <http://superbonus.project.free.fr> Superbonus-Project (Plate-forme d'échange): <http://philippe.hezaine.free.fr>

16 years, 4 months

Re: [LAU] The perfect distro for linux audio...

by Edgar Aichinger

Am Mittwoch 26 November 2008 schrieb Ken Restivo: > I'd vote for "cunnilinux" as Best Handle of 2008. +1 > > On Tue, Nov 25, 2008 at 12:57:10PM +0200, cunnilinux himself wrote: > > > sex, bike, open source! > > Sounds like a good recipe for a happy life. > > -ken > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user > Edgar

16 years, 4 months

more machine issues

by Dave Phillips

Greetings, As I get further into the configuration of my new machine I've hit some minor snags. Perhaps someone here knows how to resolve these issues: 1) The machine does not cleanly shut down with the rt kernel. The system appears to go down, but the power light remains on and does not turn off manually (this happens with the battery in or out). Any fix for that ? I don't like having to switch off the power at the strip, I doubt that it's good for the box. 2) Is there a way to permanently disable the touchpad ? It's annoying to have to turn it off manually (i.e. from the GNOME Control Center) every session. 3) Related to 2: How can I keep the Control Center's touchpad dialog from changing my Fluxbox background every time ? 4) Not really a problem, but: What's a recommended wifi card for a Linux notebook ? And will the Atheros driver in 8.10 work or is it broken ? Ubuntu 8.10 (Intrepid Ibex) is working nicely here. I'm waiting for a fix to Ardour SVN sources so I can compile Ardour 3 (my GTK is too new !), but otherwise it's fitting all my needs, thanks again to the great assistance I've received here. Best, dp

16 years, 4 months

timemachine click bug

by andersvi＠extern.uio.no

I think timemachine has had a bug during the last three years or so. It introduces a zeroed (extra?) sample after the pre-record buffersize in the outputfile. Ive used a hacked version myself for some time, which seems to function - at least the click is gone. The hack just takes away a '+ 1' at a strategic place (see diffs below), but im sure its there for some reason! Maybe more C-fluent persons here could look at the code and see whats a real fix? The source is here: http://plugin.org.uk/timemachine/timemachine-0.3.1.tar.gz -anders *** /tmp/timemachine-0.3.1/src/threads.c 2008-11-26 18:24:35.000000000 +0100 --- /tmp/timemachine-0.3.1/src/threads.c~ 2005-07-18 16:03:06.000000000 +0200 *************** *** 157,164 **** for (j = 0; j < BUF_SIZE && i < pre_size; i++, j++) { for (k = 0; k < num_ports; k++) { buf[j * num_ports + k] = ! /* pre_buffer[k][(i + 1 + pre_pos) % pre_size]; */ ! pre_buffer[k][(i + pre_pos) % pre_size]; } } sf_writef_float(out, buf, j); --- 157,163 ---- for (j = 0; j < BUF_SIZE && i < pre_size; i++, j++) { for (k = 0; k < num_ports; k++) { buf[j * num_ports + k] = ! pre_buffer[k][(i + 1 + pre_pos) % pre_size]; } } sf_writef_float(out, buf, j);

16 years, 4 months

eee and supercollider3

by andrea mariquelli

Dear Linux fellows, Could I ask you something about ASUS EEE and Supercollider3? i have tried to install supercollider on my 701 xandros advanced but something doesn't work, this is the screen of the console: eeepc-user:/root> jackstart: cannot get realtime capabilities, current capabilities are: =ep cap_setpcap-ep probably running under a kernel with capabilities disabled, a suitable kernel would have printed something like "=eip" back from read, ret = 1 errno == Success jackstart: could not give capabilities: Operation not permitted jackd 0.101.1 Copyright 2001-2005 Paul Davis and others. jackd comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK compiled with System V SHM support. `default' server already active what's the meaning of this? Thanks a lot! yours lorenzo, coventry, UK

16 years, 4 months

Problems with Sound/MIDI on Ubuntu

by rosea grammostola

When I start rosegarden I get: rosegarden DCOPClient::attachInternal. Attach failed Could not open network socket DCOPClient::attachInternal. Attach failed Could not open network socket jack@ubuntu:~$ kbuildsycoca running... Reusing existing ksycoca kio (KService*): WARNING: The desktop entry file .hidden/kdiff3plugin.desktop has Type=Service but is located under "apps" instead of "services" kio (KService*): WARNING: Invalid Service : .hidden/kdiff3plugin.desktop And then the system freezes :( When I want to change MIDI driver in setting Qjackctl, my system freezes when I start qjackctl... :( I can open Qtractor and connect it to midi input (ALSA). I can open Zynaddsubfx,connect it to the midi port and make sound... Help needed here!

16 years, 4 months

Re: [LAU] wav to avi

by Neville Cross

On Saturday 22 November 2008 09:00:02 am Carmen wrote: > Message: 3 > Date: Fri, 21 Nov 2008 15:11:21 -0500 > From: carmen <_(a)whats-your.name> > Subject: Re: [LAU] wav to avi > To: linux-audio-user(a)lists.linuxaudio.org > Message-ID: <20081121201121.GA19971@debian> > Content-Type: text/plain; charset=us-ascii > > On Fri Nov 21, 2008 at 11:57:51AM -0800, Neville Cross wrote: > > Hi, > > ?I need to convert a wav audio file into an avi file so I can create some > > eye-candy to watch while I listen. Is there a linux app which can convert > > it? > > mencoder I thought of using this, but I have no idea what the command line would be :/ Any thoughts? Nev

16 years, 4 months

transform midi Control Change 7 into velocity events?

by Philippe Hezaine

Hi all, I'm currently working on Latin patterns for the Drummer's Free Art and consequently with the percussions the project becomes sharper. I wrote each instrument in its own track, with some dynamics events, as Lilypond allows that. My problem is Lilypond creates for each dynamic event a midi CC7 event instead of a velocity event. Is it possible to transform these CC into Velocity events? I thought about mididings. I'm able to run and appreciate it at home but i'm not knowledgable in python if i want to write my own script and redirect the new midi file. Is there any light solution? PS. I join an example with my post. If you open it in a sequencer and look at the bassdrum you'll figure out what i say. Thanks in advance. -- Phil. Superbonus-Project (Site principal) <http://superbonus.project.free.fr> Superbonus-Project (Plate-forme d'échange): <http://philippe.hezaine.free.fr>

16 years, 4 months

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Linux-audio-user November 2008