Linux-audio-dev

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7536 discussions

[LAD] Fwd: Fw: Re: At the hands of Professor Keller and Raymond

by alex stone

Just on a more serious note, amidst all this mayhem and frivolity, we forked a project recently to more specifically add and modify a set of tools for a defined purpose. Unlike this trainwreck, we not only tried our best to do so in a decent way, but the original author was thoroughly civilised about it, and showed a lot of class in his positive and encouraging responses. I certainly learned a lot from the process, and have even more respect for Chris (Cannam) as a result. It goes without saying that if Chris can use anything we write, then he's most welcome to do so, and has our encouragement as well. There's a way to do this that doesn't involve throwing digital hatchets or burning anyone at the stake. Alex. > www.openoctave.org > > midi-subscribe(a)openoctave.org > development-subscribe(a)openoctave.org > -- www.openoctave.org midi-subscribe(a)openoctave.org development-subscribe(a)openoctave.org

16 years, 6 months

[LAD] Fwd: Python and MIDI orientation for a project

by Carlos Sanchiavedraz

I have notice I forgot to send this mail to LAD as well. Sorry :) Here it is. Of course, thanks in advance. ---------- Forwarded message ---------- From: Carlos Sanchiavedraz <csanchezgs(a)gmail.com> Date: Sat, 1 Aug 2009 19:18:17 +0200 Subject: Python and MIDI orientation for a project To: linux-audio-user <Linux-audio-user(a)lists.linuxaudio.org> Hi folks. I'm cooperating with a friend and fellow to improve his project related to wiimote. The project is Wiican[1]. In short, it is a tool (a system tray icon actually) that makes it easier to connect the wiimote and configure and create key mappings for use at your will. It's written in python and uses bluez, hal with dbus, wminput and cwiid. My goal is to add some layer in such a way that you can map wiimote events to MIDI. And maybe, to include it on the next improved release of Musix. So, in adittion to my researches on the subject and what I already know about MIDI CCs and so, I would like some advice and guidance about how to: - implement MIDI in python (which CCs are a must for you, create and send MIDI messages, libs, bindings, reference projects), - implement Jack and Alsa MIDI ports in python (libs, bindings, reference projects), ... and every other interesting information or experiences on this. Thanks in advance. [1] https://launchpad.net/wiican -- Carlos "Sanchiavedraz" * Musix GNU+Linux http://www.musix.es -- Carlos "Sanchiavedraz" * Musix GNU+Linux http://www.musix.es

16 years, 6 months

Re: [LAD] students and copyright

by Ralf Mardorf

Arnout Engelen wrote: > On Sun, Aug 02, 2009 at 02:20:15PM +0200, Ralf Mardorf wrote: > >> Arnout Engelen wrote: >> >>> If you don't have the copyright to a piece of code you wrote, for example >>> because you wrote it for your employer, then this means you are *not allowed* >>> to distribute this code. Not under the GPL, and not under whatever >>> other license either. >>> >>> To distribute the code, you must either get the copyright on the work back, >>> or get permission from the actual copyright holder (employer, institution) to >>> do so. >>> >> You misunderstood my broken English. GPL only allows a copyleft, that's >> why no institute or professor can use GPL licensed code and take on the >> copyright. >> >> I don't think any institute is allowed to take on a copyright by using GPL >> licensed code. >> > > Example. > > Say I'm employed, and I'm working on some project for my employer. I download > some GPL'ed code, and write some nontrivial additions to it. > > This now means the institution has the copyright on the code I wrote. If I'd > want to distribute this software, I'd need 2 things: > 1) distribute it under the GPL > 2) ask my employer to either: > a) grant me my copyright back on the additions > b) give me permission to distribute the software under the GPL > > If I wouldn't do (1), I would violate the copyright of the original author of > the GPL'ed code I download. > > If I wouldn't do (2), I would violate the copyright of my employer. > > In other words, if my employer doesn't give me permission to distribute the > work I did for him, I cannot distribute it at all, regardless of the GPL. > The instition is still bound by the GPL though, so they can't distribute the > software under anything other than the GPL - but they can still choose not to > distribute at all. > > > Arnout > Easy to understand examples, thank you. Yes, this is what I mean by my post, using GPL code means that nobody can take on the copyright without violating the GPL.

16 years, 6 months

[LAD] Sending huge SysEx files via ALSA

by Christoph Eckert

Hi, I'm currently playing with some code that sends SysEx data to ALSA using RtMidi¹. I get an error reported by the latter one as soon as the size of the message exceeds 16355 bytes. Unfortunately, I have such SysEx files of two devices (namely a Waldorf Microwave I and a Digitech Studio Quad). Can anyone comment whether this is a limitation in ALSA, and in case it is if there are coding workarounds? AFAIR ALSA splits incoming SysEx-events into chunks of 256 bytes if necessary. But I obviously overlooked that sending is much harder when I played with SysEx data the last time :) . Best regards, ce ¹ http://www.music.mcgill.ca/~gary/rtmidi/ uname -a Linux Grandevitesse 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009 i686 GNU/Linux cat /proc/asound/version Advanced Linux Sound Architecture Driver Version 1.0.18rc3. rtmidi-1.0.10

16 years, 6 months

Re: [LAD] vcf-lv2-0.0.1 (and njl-lv2 update)

by james morris

On 1/8/2009, "Ulrich Lorenz Schlüter" <audio-mobster(a)gmx.de> wrote: >with vcf-lv2-0.0.2 I get errors: > >plugins/bandpass1-vcf.lv2/bandpass1.c:10:17: error: vcf.h: No such file >or directory >plugins/bandpass1-vcf.lv2/bandpass1.c:11:26: error: filter_type2.h: No >such file or directory Woops... A little embarrassing. Thanks for letting me know. Uploaded what should have been, try again. src: http://www.jwm-art.net/lv2/vcf-lv2-0.0.2.tar.gz patch: http://www.jwm-art.net/lv2/vcf-lv2-0.0.2.patch.gz Regards, James.

16 years, 6 months

[LAD] Impro-Visor mailing list

by Bob Keller

I am pleased to announce a new mailing list for general questions and comments relating to Impro-Visor: impro-visor-general-request(a)lists.sourceforge.net which is hosted at: https://sourceforge.net/projects/impro-visor/ Information on subscription may be found here: https://lists.sourceforge.net/lists/listinfo/impro-visor-general Thanks for your constructive suggestions. Regards, Bob Keller -- Robert M. Keller, Csilla and Walt Foley Professor of Computer Science Harvey Mudd College

16 years, 6 months

[LAD] vcf-lv2-0.0.1 (and njl-lv2 update)

by james morris

Hi, First release of the VCF LADSPA plugins ported to LV2: (again, temporary download location) http://www.jwm-art.net/default_downloads/vcf-lv2-0.0.1.tar.gz notes: some of the filters appear to work incorrectly in ardour2, but appear to work correctly in lv2rack and ingen. i don't yet know if this is a fault with my .ttl files, if anyone with more knowledge than i can clarify it'd be much appreciated. ---------------- Second release of the NJL LADSPA plugins ported to LV2: http://www.jwm-art.net/default_downloads/njl-lv2-0.0.2.tar.gz changes: * removed www. from LV2 URI prefixes of all plugins * fixed port properties which specified 'integer' instead of 'Integer'. ---------------- plugins have been (unthoroughly) tested in lv2rack, lv2_jack_host, ingen, and ardour2. of the vcf plugins, the CV variants are mostly untested. Cheers, James.

16 years, 6 months

Re: [LAD] FFADO Contact Needed

by Jonathan Woithe

Hi Alex On Tue, 28 Jul 2009 23:42:02 you wrote: > I have tried the contact form on the FFADO website and through the email > address provided in the contact pages at the SourceForge.net project page > to no avail. I'm not sure where else to ask except here. Are any of the > FFADO developers on this email group that can provide a contact email that > will garner a response? I *think* I responded to an email later in this thread, but in case it was missed feel free to contact me off-list about whatever it is you were wanting to ask and I'll attempt to help you out. Regards jonathan

16 years, 6 months

[LAD] [LAA] [ANN] guitarix-0.05.0-1 released

by hermann

guitarix is a simple Linux Rock Guitar amplifier and is designed to achieve nice thrash/metal/rock/blues guitar sounds. Guitarix uses the Jack Audio Connection Kit as its audio backend and brings in one input and two output ports to the jack graph. Release 0.05.0-1 comes with some major changes: * Completely new source structure by James * add keyboard shortcuts * improved skin handling * add logging window * improved preset handling * add middle tone control * reworked audio engine * add bypass mode * add engine state widget Please read the README for more details regarding the new options. have fun ________________________________________________________________________ The standalone version of guitarix is based on GTK2+. But guitarix is also released as a suite of LADSPA plugins and can be used in e.g. ardour. guitarix is licensed under the GPL. Project page with screenshots: http://guitarix.sourceforge.net/ download: http://sourceforge.net/projects/guitarix/ For capture, guitarix uses the external application 'jack_capture' (version >= 0.9.30) written by Kjetil S. Matheussen. If you don't have it installed, you can look here: http://old.notam02.no/arkiv/src/?M=D For extra Impulse Responses, guitarix uses the convolution application 'jconv' created by Fons Adriaensen. If you don't have it installed, you can look here: http://www.kokkinizita.net/linuxaudio/index.html I(hermann) use faust to build the prototype and will say thanks to : Julius Smith http://ccrma.stanford.edu/realsimple/faust/ : Albert Graef http://www.musikwissenschaft.uni-mainz.de/~ag/ag.html : Yann Orlary http://faust.grame.fr/ regards guitarix-dev team: Hermann Meyer & James Warden

16 years, 6 months

[LAD] How to get sample rate for lv2 plugin?

by Ulrich Lorenz Schlüter

Hi there, I'm using the lib lv2-plugin to write a plugin with c++ as you will know. Now what's the proper way to get the sample rate? Thanks in advance Uli

16 years, 6 months

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Linux-audio-dev