Linux-audio-user April 2004

linux-audio-user@lists.linuxaudio.org

141 participants
177 discussions

[linux-audio-user] live linux audio at the la laptop battle

by Brian Redfern

I'm compteting tonight at the la run of the travelling laptop battle, at the knitting factory around 9pm, so if anyone is interested I'm using termintorX with suse 9.0 and a dell laptop, I was in fact going to use my quattro, but its too darn buggy, it dies after about an hour, and since I have to leave my laptop on stage for extended amounts of time, I'm just using teh built in i810 sound, which though its not as high quality as the quattro, it doesn't randomly freeze my machine up like the quattro will. I wonder if anyone is using the roland/edirol intefaces, they appear to be basically guarunteed to follow the usb standards.

21 years, 1 month

[linux-audio-user] Frequency Analysis app

by Richard

Well the best all round tool is certainly baudline. It's expressedly made for real time spectrum analysis ,noise measurement of all kinds .. i mean it's worth quite a long look. Trying it might get you hooked. The best the sound card the more you'll get out of it. http://baudline.com/ it's free :) Ric Baudline is a real-time signal analysis tool and an offline time-frequency browser. It has a built in tone generation capability and it can play back audio files with a multitude of effects and filters. Designed for environmental analysis missions that range from modulation parameter measurements to searching for transient signals that go bump in the night, baudline combines fast digital signal processing, versatile high speed displays, and continuous capture tools for hunting down and studying elusive signal characteristics.

21 years, 1 month

[linux-audio-user] timidity and jack problem

by Stuart Allie

Hi All, Ive just built timidity++ 2.13 and Im trying to use the jack output driver, but with no luck so far. Actually, Im trying to use it in alsa sequencer mode with jack outputs. Ive tried timidity Oj file.mid and timidity iA B2,8 Oj file.mid with the jack patch bay open, and I briefly see two ports TiMidity:out_1 and out_2 (or something like that) appear for a split second and then disappear again. Using qjackctrl, there dont seem to be any error messages from jack, so I cant see what the problem is. Any suggestions anybody? Thanks, Stuart ------------------------- Dr. Stuart Allie Systems Studies Hydro Tasmania 4 Elizabeth Street Hobart Tasmania +61 3 6230 5079 stuart.allie(a)hydro.com.au ------------------------- _________________________________________________________________ Find love today with ninemsn personals. Click here: http://ninemsn.match.com?referrer=hotmailtagline

21 years, 1 month

[linux-audio-user] Re: Radium

by Kjetil Svalastog Matheussen

Michal Seta: > > Hi Kjetil, > > Is radium supposed to be useable at all under linux? > I got it compiled, it opens up fine, I can enter notes but don't seem > to be able to connect to any midi port... what am I missing... > Do you see the "Midi Properties" windows that is on this screen-shot: http://folk.uio.no/kjetism/radium/pictures/v062_linux.png All midi-ports should show up there. --

21 years, 1 month

RE: [linux-audio-user] Quattro USB

by Reuben Martin

Not through Jack it won't. > > > Quoting Reuben Martin <MartinR(a)jbu.edu>: > > > Ardour: yes. > > Audacity: no. > > You sure about that? > I do believe that the quattro will record four inputs in audacity. > In fact, I'm sure I remember doing so. > > Austin >

21 years, 1 month

RE: [linux-audio-user] Quattro USB

by Reuben Martin

Ardour: yes. Audacity: no. > Hello all, > I have seen many posts about the Quattro, and would like to > ask a question: > What I am planning to do is use the Quattro to record from a > Mackie CFX16, > which gives me 4 separate outputs. > > >From what I have read, the Quattro will handle the 4 > separate inputs, and jack > would possibly be able to send these separate signals to a > piece of software > that can record each as a separate track. (Ardour, Audacity maybe?) > > Does that sound like a reasonable setup? > > Any suggestions, opinions, etc. would be GREATLY appreciated. > > Thanks, > Wade

21 years, 1 month

[linux-audio-user] Quattro USB

by Wade Winright

Hello all, I have seen many posts about the Quattro, and would like to ask a question: What I am planning to do is use the Quattro to record from a Mackie CFX16, which gives me 4 separate outputs. >From what I have read, the Quattro will handle the 4 separate inputs, and jack would possibly be able to send these separate signals to a piece of software that can record each as a separate track. (Ardour, Audacity maybe?) Does that sound like a reasonable setup? Any suggestions, opinions, etc. would be GREATLY appreciated. Thanks, Wade

21 years, 1 month

[linux-audio-user] draft announcment

by Taybin Rutkin

JACK RELEASE 0.98.0 JACK is a low-latency audio server, written primarily for the GNU/Linux operating system. It can connect a number of different applications to an audio device, as well as allowing them to share audio between themselves. Its clients can run in their own processes (ie. as normal applications), or can they can run within the JACK server (ie. as a "plugin"). JACK is different from other audio server efforts in that it has been designed from the ground up to be suitable for professional audio work. This means that it focuses on two key areas: synchronous execution of all clients, and low latency operation. JACK is available at http://jackit.sf.net ***CHANGES*** Fixed bug when using non-dithered 16bit output. Fixed crashing bug with JACK clients that use SSE. three new functions in JACK API: int jack_client_name_size(void); int jack_port_name_size(void); int jack_port_type_size(void); These sizes are inclusive of the final NULL character. Automatic server startup (more on this below). Added OSS JACK driver. New option -m,--no-mlock: Do not attempt to lock memory, even if --realtime. New option -p,--port-max n: Set the maximum number of ports the JACK server can manage. The default value is 128. New option -T,--temporary: jackd will exit when last client disconnects. Configuration process reworked for better portability. This has helped jack run on MacOSX and FreeBSD. Added JACK thread initialization callback. ***AUTO START SERVER FUNCTIONALITY*** libjack will now try to automatically start jackd when jack_client_new() is called if it isn't already running. Because this changes the semantics of jack_client_new() and confuses certain apps, the new semantics apply if and only if $JACK_START_SERVER is defined and $JACK_NO_START_SERVER is not defined. This will change in future releases. libjack determines the proper arguments to pass to jackd by first checking ~/.jackdrc, failing that /etc/jackd.conf, failing that hardcoded strings that we've determined to be the most likely to work on a variety of platforms. The format of ~/.jackdrc and /etc/jackd.conf is as follows: absolute path to the jackd or jackstart binary to be executed, followed by the regular arguments all on one line. libjack will automatically insert the --temporary argument so that any auto started jack server will exit when the last client has disconnected. If libjack is unable to start the server, jack_client_new() will fail normally. We hope that this new functionality will make using JACK easier and more seamless with the JACK client. Taybin

21 years, 1 month

Re: [linux-audio-user] laconf2 call for help w/ irc and streaming

by Taybin Rutkin

Should there be 3 seperate irc rooms then? One for each concurrent lecture? Taybin -----Original Message----- From: Joern Nettingsmeier <nettings(a)folkwang-hochschule.de> Sent: Apr 20, 2004 5:33 AM To: Linux Audio Development Mailing List <linux-audio-dev(a)music.columbia.edu>, Linux Audio User Mailing List <linux-audio-user(a)music.columbia.edu> Cc: Frank Neumann <Frank.Neumann(a)st.com>, Goetz Dipper <goetz(a)zkm.de>, "Dr. Matthias Nagorni" <mana(a)suse.de> Subject: [linux-audio-user] laconf2 call for help w/ irc and streaming hi everyone! as you will certainly have heard, we are getting closer to the 2nd linux audio conference at zkm (http://www.zkm.de/lad). as you might also have heard, we will have live streams of all talks and lectures in ogg format for those who can't make it there in person. last year, we had an irc "feedback channel", meaning i would sit in the lecture room with a notebook, answer questions from people who were listening to the stream and relay their questions to the audience if necessary. i want to do the same this year. problem is: there are three lecture rooms now. so i'm looking for a couple of people who'd be willing to help out. specifically, i need people who * are at the conference :) preferably the whole time * bring their own laptop with working sound output and headphones * have some experience with networking * have or can operate a webcam on their machine and are willing to install xawtv * like to chat your tasks will be: * to attend talks * to have an irc window open and answer and relay questions * to set up a webcam that will provide the listeners with stills so that they'll know which slide is up atm etc. * to monitor the outgoing stream and to ping the relays from time to time. the more helpers, the less work for all of us. last year, it has been great fun, although chatting, monitoring (with some 5 seconds lag) and listening at the same time can make your head spin in funny ways. please cc: me privately on any replies. thanks. regards, jörn -- Jörn Nettingsmeier Lortzingstr. 11, 45128 Essen, Germany http://spunk.dnsalias.org (my server) http://www.linuxaudiodev.org (Linux Audio Developers)

21 years, 1 month

Re: [linux-audio-user] Re: Re: [ANN] Radium v0.63

by Kjetil Svalastog Matheussen

Paul Winkler: > > Howdy, I'm trying to compile radium too... > > On Mon, Apr 19, 2004 at 02:40:04PM +0200, Kjetil Svalastog Matheussen wrote: > > It shouldn't be very important. Just go into the Makefile and > > remove "-Werror" from line 71. That might "solve" other > > potentional compiling problems as well. > > It fixes Michael's error - at least it does here :-) > > FYI, I had to change the makefile a bit because > you defined $(QTDIR) as the qt lib/ directory, and > on gentoo, the QT headers are not in $(QTDIR)/include, they're > in $(QTDIR)/../include. > That fixes a bunch of errors with missing headers. > > Now I'm stuck here: > g++ Qt/Qt_EventReceiver.cpp -c -g -Wall -DNOPAUSEPLAY -I/tmp/radium/gc6.1/include -I/usr/X11R6/include -IQt/ -I/usr/qt/3/include -I`cat pypath.comp` -DGUIISQT > Qt/Qt_EventReceiver.cpp:63: error: brace-enclosed initializer used to > initialize `int' > make: *** [Qt_EventReceiver.o] Error 1 > Go to line 63 in Qt/Qt_EvenReceiver.cpp and change struct TEvent tevent={{0}}; to: struct TEvent tevent={0}; --

21 years, 1 month

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Linux-audio-user April 2004