Linux-audio-user June 2005

linux-audio-user@lists.linuxaudio.org

153 participants
135 discussions

by Kevin Cosgrove

Hi there, Rosegarden is my first notation program, and I like it a lot. But, as a drummer its lack of drum clef is difficult for me. Is there some other software which I can export to from Rosegarden which will let me print drum sheet music? Thanks.... -- Kevin

19 years, 5 months

[linux-audio-user] Hydrogen ALWAYS starts recording from the middle

by Fabricio Rocha

Folks, Sorry for the people who have read this post in other forums, but it´s urgent... I don´t know what did I do wrong, but since somewhere in time, I can´t convince Hydrogen 0.9.2-beta3 to start playing from the beginning of a song while a try to record a track in Rosegarden. When I set JACK Transport on, and press Play in Rosegarden from the start of the music, both Rosegarden and Hydrogen play in perfect sync. But I want to record the rhythm guitar again. I carefully set the cursor to bar 0 in both apps. But when I press the Record button, Hydrogen jumps to bar 47 (or something near that). EVERY TIME! It does not work closing everything and rebooting. I tried to create a new project in Rosegarden and the problem persisted. Have you pals had any experience like that?? Regards! Fabricio Rocha _______________________________________________________ Yahoo! Acesso Grátis - Internet rápida e grátis. Instale o discador agora! http://br.acesso.yahoo.com/

19 years, 5 months

[linux-audio-user] usb devices

by Noah Roberts

Are usb devices a decent option for recording and playback? How about both at the same time? I am thinking of going laptop but would like to get better sound than is available in most. USB is then only option. Would the latency be noticable to me or listeners of my recordings? Which USB devices are best wrt Linux compatibility? Is MAudio good here too? Thanks.

19 years, 5 months

[linux-audio-user] CreativeCommons tagging

by Conrad Parker

Hi, I've been following the rise and rise of music made with Linux, which have been announced on this list and Jan Weil has been listing at: http://linuxaudioblog.jawebada.de/music Many of the released files have no licensing information. In most parts of the world, this implies "All Rights Reserved". If you are making music, or samples, that you are happy to share with others then you should consider tagging your files with a CreativeCommons license. Embedding licensing information allows people using music browsers and search engines to _find your stuff_ (songs, samples, source materials -- it's up to you). We want Linux distributions to provide tools for people to find and use free media, and music made with Linux should be ready for that. General information about embedding licensing information is at: http://creativecommons.org/technology/embedding More specific information about putting licensing information in Ogg Vorbis files is at: http://creativecommons.org/technology/ogg This basically involves adding a LICENSE comment, such as: LICENSE=Licensed to the public under http://creativecommons.org/licenses/by-sa/2.5/ verify at http://example.com/cclicenses.html Using the commandline vorbis-tools, these tags can be added easily: * To add licensing information to an existing Ogg Vorbis file: vorbiscomment -t "LICENSE=Licensed to the public ..." file.ogg * To add licensing information while encoding a WAV file to Ogg Vorbis: oggenc -c "LICENSE=Licensed to the public ..." file.wav Please include the URL of the license you choose in the LICENSE tag. Information on CreativeCommons license choices is at: http://creativecommons.org/licenses/ Looking forward to a web of free music, Conrad.

19 years, 5 months

[linux-audio-user] La Marmite

by nico

Hi, I started last year the project of an small framework for audio apps based on JACK and LADSPA. I published it quite a while ago on : http://lamarmite.poivron.org But I'm now really doubting of the interest of this project and this should be THE place to find answers ... --*/--*/--*/--*/ Here is a short intro La Marmite is a C++ framework cooked for the development of audio applications for GNU/Linux which is based on the will of simplifying the combined use of the standard tools JACK and LADSPA. La Marmite is free software and published under the GNU Public License. JACK and LADSPA are two major ingredients from the Linux audio world but mixing them together often bury me in long hours of C coding which rapidly oxidize my placid humour... My idea was to construct a object-oriented environment providing a higher level of abstraction and which allows me to concentrate on the logic of the application and to achieve my goal faster without having neither to bury myself in the inmost depths of the interfaces nor to recode over and over the same routines. Do you feel like ? La Marmite was designed in order to create same applications, audio toys, or autonomous audio modules which be further mixed or combined through JACK. But only few things have been realised so far. And it might not be well suited for larger scale applications.

19 years, 5 months

[linux-audio-user] Re: linux-audio-user Digest, Vol 21, Issue 34

by Bill Schottstaedt

> On one of my systems, with a Hoontech card in it, I can use snd to > change playback speed without changing pitch. On another system > containing a Soundblaster, snd won't change the pitch. Is this an > expected behavior? I use Soundblasters, but I'm not sure I understand the problem -- do you want to change the pitch or not? Are you using the "expand" controls in the control panel? (They change the tempo, and need to be explicitly turned on, whereas the "speed" controls change the pitch). This stuff should be independent of the sound card -- it's all done in software.

19 years, 5 months

[linux-audio-user] demudi install question

by Atte André Jensen

Hi I'm getting ready to install demudi on a blank HD. What's the difference between using the demudi installer and installing debian/sarge and adding the correct lines in sources.list? I've been running debian for the past 3 years, and installed everything from potato to sarge, so the debian installer doesn't scare me. I'm more worried in getting the best balance between bloat and a system that works out-of-the-box... -- peace, love & harmony Atte http://www.atte.dk

19 years, 5 months

[linux-audio-user] jackd ubuntu oddities

by Ivica Ico Bukvic

Hi all, I am quite flabbergasted by this particular problem as it never was a problem before. Therefore, I would greatly appreciate any help I can get in this matter. I've installed Ubuntu Hoary and then installed realtime-lsm module from the Hoary deb repository. The realtime-lsm definitely works without a problem and has been thoroughly tested. If I install any audio jackd-capable app from Ubuntu Hoary deb repository, it works just fine with jackd (which was also installed from the repository) both real-time and non-realtime, except for the Supercollider. Jackd uses in /tmp folder which has been mounted as tmpfs to improve performance. I tried installing Supercollider from source and it exhibits the same behavior as the .deb. I did install Alsa 1.0.9 as 1.0.8 that ships with Ubuntu has some bugs in respect to hdsp driver (although Ubuntu may have patched these, haven't bothered to check). When trying to connect to non-rt jackd, Supercollider works, but when connecting to real-time enabled jackd it connects and immediately gets disconnected reporting error that it has been "zombified" by jackd. I tried even enabling realtime-lsm for all apps and that did not help. Starting jackd in softmode does not help. Now, I know that it worked just fine on Mandrake with realtime-lsm module so I have no idea why jackd is being so picky. Considering all the problems, I tried installing jackd from source (Hoary has 0.99.0, so I downloaded the same) and now here is where the rub starts. Once I install the same version jackd from source, no app from Hoary's .deb repository works any more with it, including qjackctl. Error reported is "could not tie an input port" or something along those lines. So, the only thing I can do is then install all the audio apps from source to make them work with the jackd. So here are my questions which I would greatly appreciate your help in answering: 1. Why is this happening when both the .deb and source versions of jackd are the same? 2. So what can I do at this point and why some apps (pd sometimes also gets zombified) get so easily kicked from jackd while others don't? 3. Is there anything I can do to retain compatibility with the jackd-enabled apps from .deb repository when compiling newer version of jack from the source? 4. What actual version of jackd is Ubuntu using? How is it altered? 5. What can I do to make jackd tolerate initial start-up delays (ironically this has not been the problem in the past with supercollider, so at this point I am not sure whether it is a problem with supercollider, jackd, or Ubuntu)? 6. Should recompiling kernel with low-lat and realtime patches (i.e. ck) help solve some of these problems? 7. Any other advice that may help solve these problems would be most appreciated! Sorry for cross-posting, I am hoping that Ubuntu devs/users may be able to answer some of these. Many thanks! Best wishes, Ivica Ico Bukvic, composer & multimedia sculptor http://meowing.ccm.uc.edu/~ico/

19 years, 5 months

[linux-audio-user] Audacity and Multichannel Cards: How to select inputs?

by Peter Plessas

Hi List, the topic line says it all. I am using an HDSP with Audacity under OSSemu/ALSA/JACK. Since i need to record something from inputs OTHER than Analog1 and Analog2, i wonder if there is a way how to set those. The preferences' audio pane just list "how many" channels i want to record, one, two,...sixteen, but not which ones. Perhaps i could use some clever jack-patchbay stuff, but i would like to know if such a cool and efficient software as audacity allows this. regards, Peter Plessas

19 years, 5 months

[linux-audio-user] Is a stock 2.6.12 enough?

by Christoph Eckert

Hi, I wonder if a vanilla 2.6.12 is enough for realtime use. If so, which options need to be set in the kernel config and which system configuration work needs to be done? I just built one but I get a lot of xruns. Or is it still recommended to patch the kernel? Any hints are much appreciated, even RTFM with a pointer to TFM :) . Best regards ce

19 years, 5 months

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Linux-audio-user June 2005