Linux-audio-user April 2006

linux-audio-user@lists.linuxaudio.org

171 participants
186 discussions

by torbenh＠gmx.de

netjack-0.11 ------------ Warp your jack ports over an IP network. Also have Transport synced between 2 machines. Work is underway in improving the latency for big channel counts, like 24in / 24out. There seems to be a bottleneck in the kernels handling of big UDP Packets. However netjack seems solid with a period size of 128 and a roundtrip latency of 3 periods. (this is at 24/24 float on 100Mbit) The latency does not seem to improve with Gbit. Also featuring: - improved error messages. - some AutoConfig on the slave side. (only period and samplerate) - alsa_in and _out improvements. Have Fun. -- torben Hohn http://galan.sourceforge.net -- The graphical Audio language

17 years, 5 months

[linux-audio-user] audioLinux & RMLL

by joke

Hello Linux audio Users/programmers ;-) I am curating the audio/video programme for RMLL that will happen in Nancy this year http://www.rmll.info . I would like to know if there is people interested to come to present (conference - workshop - demos...etc) some of the good audio software running under Gnu/Linux &/or some others subjects link to that? It's in Nancy from 4th to 8th of July... should be sunny :-) you could send me answers offline if you want. cheers Julkien http://www.apodio.org http://www.apo33.org http://www.rmll.info

17 years, 5 months

[linux-audio-user] Questions about qsynth, swami and soundfonts

by Bill Allen

Having located a collection of soundfonts that I like, I'm interested in performing. I like the graphical interface to qsynth for loading and using soundfonts, but there are a couple of limitations for live performance it seems. Maybe these things are ignorance on my part and if so I hope that somebody can put an end to that state. First, in order to change the current soundfont, you've got to select Channels, then right click on the channel you want to change and hunt for the soundfont you want in that channel. This is partially mitigated by having presets, but what that implies to me is that I'd have to have a preset for every soundfont program that I ever want to use. What I'd really like is a simple list of all the programs and be able to select the one I want with one click. How do others deal with this? Second, it seems that soundfonts can hide other soundfonts. In other words, the order in which you place the soundfonts in setup/soundfonts matters. If you've got a soundfont that claims the same program number that comes after another soundfont in the list, that program hides the other one. Even in the best of worlds this would be a problem - the best of worlds defined as one in which the soundfont authors actually used the suggested midi program numbers for standard instruments (i.e. 64 for Soprano Sax, etc). It is a problem since many soundfonts have the same instrument with different tones (Hard Tenor Sax, Soft Tenor Sax) which would both want to use the same number, but can't within the same soundfont. In the world that we live in however, soundfont authors often ignore the midi program numbers and just number their programs from 1 all to commonly, which exacerbates the hiding problem. Now, the hiding seems gratuitous since qsynth assigns each soundfound an SFID (presumably soundfont ID) which means that if the key was SFID/program number then it wouldn't matter that two soundfonts used the same range of numbers, but for some reason in qsynth this does seem to matter. I don't believe this is a generic issue since the same collection of soundfonts in freewheeling allows one to browse through each soundfont and select any program in that soundfont. Having encountered this problem, I decided to take matters into my own hands and renumber the conflicting soundfonts so there was no conflict. Having produced my own soundfont for Soprano Sax (recently corrected for some notes tuning available at http://juraview.com/SopranoSax.sf2) using swami, I didn't feel any hesitation about loading the fonts and renumbering the programs. Unfortunately I can't find any way to renumber the programs in swami which is weird since I distinctly remember having done this with my soprano sax font, but this was well over a year ago. Has this capability been removed from swami or am I just missing it? Any suggestions (other than FOAD) will be appreciated. Bill

17 years, 5 months

[linux-audio-user] System clock running too fast with realtime kernel

by Dominic Sacré

Hi, I noticed that my system clock is too fast by about 5 seconds per hour when running under a realtime kernel. I'm using kernel 2.6.16 on an Athlon XP with VIA KT600 chipset. With a non-realtime kernel, using exactly the same config (except for preemption mode, of course) the clock is ok. I don't remember having this problem on kernel versions before 2.6.16 (or maybe 2.6.15, I'm not sure), but I don't know if this is due to a change in the kernel or in my own config. Has anyone seen this problem before, or does anyone know what I could do about it? Also, is there a more appropriate place to report problems with the realtime kernel patches? Thanks, Dominic

17 years, 5 months

[linux-audio-user] Looking for midi libraries / dev and source example for playback

by Daniel

I'm looking for midi libraries / dev and source example for playback Running gentoo on AMD 64 and I have a midisport 4x4. Thanks Daniel

17 years, 5 months

[linux-audio-user] Music: Dirty Monkey

by Thorsten Wilms

Hi! Quite a while ago, I decided to create a sample-free piece of music, where everything is generated with Om (modular synthesizer). To test Om, to learn how to use it and to achieve non-static sounds with modulation and random influences (I tend to think many of my old tracks suffer from rather 'dead' sounds ...). Since I've been working on this now and then for so long, I guess I lost my objectivity even more than usual, so feedback is especialy welcome ;) I might update the track once afterwards. The dirty monkey is kinda pissed, but optimistic (that's the mood I wanted, at least, as I feel like that sometimes). http://www.archive.org/details/dirty_monkey Oops, the archive has eaten the ogg, I'm about to fix that now. Cheers, Thorsten Wilms

17 years, 5 months

[linux-audio-user] rt kernel compile, lose wireless

by greg

I compiled the -rt patched kernel in Ubuntu. I think I did everything correctly. When I boot to it, it flashes something that says "**********REMINDER*******" but I can't read the message. Does anyone know where or how to read this? Also now centrino wireless does not work in the new kernel. I checked modprobe -l *ipw* and those are there so I assume there's some command I don't know about or something. In recovery mode I also get a message repeatedly that "/tty/syss0" (maybe not that name exactly) is not a serial device.

17 years, 5 months

[linux-audio-user] linuxsampler question/feature request

by Julien Claassen

Hello! I've one question about linuxsampler and one plea for a new feature. 1. Can linuxampler read and use .gig-files which include instruments bigger than 2GB? 2. Could you probably think about supporting a new sampler-format. I thought of something simple: You have a text-configuration file and a lot of samples (.wav, aiff... etc), which could probably done by libsndfile. I thought it would be simple to implement something like it. I mean .gig-files and all other formats also consist of those two parts: a) samples b) configuration-data. The only thing is that it is separated. thus these instruments can be created by any linux-user without a problem or special software. The text-config-file could be done as simple-text or with a simple xml-based dtd. What do you think about it? Would it be possible? Would you think it's a fine idea, worth implementing? And would you probably be so kind as to spare the time doing it. Unfortunitely I'm much to dumb writing it. Kindest regards Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net - the Linux TextBased Studio guide

17 years, 5 months

[linux-audio-user] music made with linux: 4 voice fugue

by Atte André Jensen

Hi Here's a little piece of something I made with csound and mondrian: http://atte.dk/compositions/elektronica/4_voice_fugue_in_c_dorian.ogg -- peace, love & harmony Atte http://www.atte.dk http://www.atte.dk/gps

17 years, 5 months

[linux-audio-user] Re: Rosegarden 1.2.3 debs?

by David Baron

> 'm struggling with Scons, trying to build from source. Has anyone seen > debian packages for this yet? > > Thanks in advance! Make sure that PKG_CONFIG_PATH is correctly set in you /etc/profile or do it before in the session doing the scons configure. Then the thing will find the libraries it needs to compile. If it does not find stuff it can live without but you want, install them first.

17 years, 5 months

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Linux-audio-user April 2006