Linux-audio-dev

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3 participants
7520 discussions

IR: LV2 Convolution Reverb and ambisonics

by Fernando Lopez-Lezcano

On 01/13/2011 10:37 AM, Tom Szilagyi wrote: > Hi all, > > Standing on the shoulders of giants[*], I am pleased to announce the > public release of IR, a convolution reverb in the LV2 plugin format. > Released as free software under the GNU GPL, this easy to use plugin > has been created to open the fascinating world of convolution reverb > to Linux-based audio engineers. If you use Ardour to create, mix& > produce music, you will most probably want to check out this plugin. It is a great addition Tom, I'm packaging it in Planet CCRMA now. I'm trying to see what is the best way to convert the plugin so that it can deal with first order ambisonics impulse responses. Those are four channels wide (ie: four convolutions, one for each of the four incoming channels - W X Y Z). I managed to get it to work by creating ir-amb.cc, ir-amb_gui.cc, etc, etc. And changing your code to have the required number of ports, etc. It does work, except that my simple minded rewrite breaks down if I try to instantiate a normal IR plugin in addition to the IR-AMB (how I named the "new" plugin). In that case the second instance (order does not matter) bugs out with: (ardour-2.8.12:14284): GLib-GObject-WARNING **: cannot register existing type `IRWaveDisplay' etc (same for IRModeInd and IRMeter, all the gui classes I did not duplicate). I can have multiple instances of either, but not mixed (well, I can, it is just that opening the gui for the second does not work and crashes the rest). Knowing nothing about all the components involved I need some help... I can supply or post the patch if needed (I presume it is some simple gtk thingy I need to add to the code). -- Fernando

13 years, 7 months

SMPTE and jackd

by Egor Sanin

Hi folks. I've got a question about SMPTE frames and jack period size. In the "worst case" of 30 frames/second, each frame spans 1/30 seconds. Does that mean that if jackd is called such that (period size)/(rate) > (1/30) seconds, we will drop SMPTE frames? Large period sizes are rare these days, but this is still a possible scenario and I want to understand it properly. Thanks.

13 years, 7 months

Hydrogen Drumkit Contest : only 1 month to go !

by thijs van severen

Hello drumkit-making people :-) This is a friendly reminder that the Hydrogen Drumkit Contest<http://hydrogen.popez.org/hcms/node/2035> deadline is rapidly approaching (little more than a month to go) So if you have created a great drumkit don't wait to long to submit it ! Fan-tas-tic-ly fa-bu-lous prizes are waiting for you ;-) Happy drumming Grtz Thijs ps: sorry for cross posting

13 years, 7 months

Re: [LAD] [Ardour-Dev] new (faster) fourier transform

by Robin Gareus

On 05/07/2012 10:58 PM, Nando wrote: > Did you know about this? No, thanks for the heads up. > http://www.technologyreview.com/article/40245/ papers, documentation and example-code: http://groups.csail.mit.edu/netmit/sFFT/ > I guess SFT can be relevant for ardour, jack and other audio related > software. Looks like an important advance in math! The maths have not changed :) but their approximation algorithm is interesting. 2c, robin

13 years, 7 months

How do I add threadirqs as a default boot parameter for a linux kernel not editing boot configs?

by Kaj Ailomaa

I've been trying to find some docs on how to get the kernel to boot with the threadirqs by default, and not needing to pass that option manually at boot time (or editing a boot config). Or, any boot option for that matter.. Anyone care to shed some light on this? :)

13 years, 7 months

NASPRO 0.4.1 released

by Stefano D'Angelo

Hi all, I am glad to announce the release of NASPRO 0.4.1. NASPRO (http://naspro.atheme.org/) is meant to be a cross-platform sound processing software architecture built around the LV2 plugin standard (http://lv2plug.in/). The goal of the project is to develop a series of tools to make it easy and convenient to use LV2 for sound processing on any (relevant) platform and for everybody: end users, host developers, plugin developers, distributors and scientists/researchers. This is just a small update to NASPRO Bridge it and NASPRO bridges that: * makes use of LV2 Atom for MIDI events; * enables LRDF-equivalent bundle installation and automatic translation of DSSI programs to LV2 presets by default; * aligns with the unified LV2 distribution. Enjoy!

13 years, 7 months

Re: [LAD] Introducing "Open Tritone Midi", a Satanic Open Octave Midi Fork

by Edward Diehl

I feel this whole thread is highly inappropriate and repugnant. If you do not like OOMidi you do not have to use it or support their fundraiser, but this kind of gratuitous baiting is uncalled for. The claims that OOMidi has done no development on their own are rediculous. Sure, have forked Muse, that is acknowledged on their website and code, but it is also clear they have added quite a bit of functionality to the original codebase. Frankly this sort of project is what open source and the GPL is all about - users are free to modify code and scratch their own itch. sincerely, Edward Diehl

13 years, 7 months

Introducing "Open Tritone Midi", a Satanic Open Octave Midi Fork

by Rolf Wolf

My fellow humans, This is the announcement of "Open Tritone Midi", a Satanic DAW and Midi Sequencer. The Tritone is the classic devils musical interval. ( http://en.wikipedia.org/wiki/Tritone ) It will be just an Open Octave Midi fork with replaced Logo graphics and the removal of the current author names. So I don't have to do development myself but I can start funding campaigns. As Satanic Software it is most important to center around humans, so a friendly and humble manner in support, communication and marketing affairs will be the main focus. When it is ready the next mail will be send to this list. *sign of the horns*

13 years, 8 months

Possible gpl validation

by hermann

Hi all For some time now there is a website witch offer a USB stick, a slackware based Audio bundle full with GPL'd software. I have some discussions with the provider, because he wouldn't make the source available to his (possible) users, and he wouldn't make them aware that they have the right to receive the source. I have contacted license-violation(a)gpl-violations.org and get a fast response first. On my question if they see a GPL validation they wrote after visit the site : > Looks like it. On the website he/she claims that everything is under > GPL. I would suggest contacting the person in question, gently > pointing > out to his/her obligations. > > If you have already done so, let us know and we'll try again. Well, I let them know that I've try it without success. Unfortunately I didn't hear any more from them for more the 2 weaks. Is anyone here on the list knowing what is to do now, what could we do to make the provider aware that he must offer the source in the same way then the binary's, and that he must make clear that users have the right to receive the source. I guess most of the Copyright-holders from the used applications are members of this list. At least, I still believe that no one how buy this stick, ever have a interest in the source, so it is just a mater of respect for the GPL, but, it's a shame for me to see the GPL validate in such a way and get on top of that a response from the provider in a "Fuck off" attitude. To bad that I need to provide the link to this crap here, so that you could have a look at it: http://www.getstudio1337.com/ here is the discussion about the issue: http://www.linuxmusicians.com/viewtopic.php?f=4&t=7928 any Ideas what to do ? Or I'm completely wrong in my understand of the GPL? greets hermann

13 years, 8 months

Linux Audio Conference 2012 at CCRMA - live stream coverage starting tomorrow

by Jörn Nettingsmeier

Hi *! On behalf of the conference organizers, we would like to invite you to join the Linux Audio Conference 2012, kindly hosted by the Center for Computer Research in Music and Acoustics (CCRMA) at Stanford University. The conference will start tomorrow, Thursday April 12, at 10:00 PST (that's UTC - 0700). Please refer to the schedule at http://lac.linuxaudio.org/2012/program for detailed information. We will be streaming all paper presentations live in Ogg Theora/Ogg Vorbis format. Users of the Firefox browser should be able to watch this natively without any plugins. For users of other browsers, we recommend VLC, a cross-platform media player which you can download from http://videolan.org. You are invited to join us on IRC while you're watching the streams, the conference channel is #lac2012 on freenode.net, to be accessed with the chat client of your choice, or via http://webchat.freenode.net/?channels=lac2012 Remote participants can post their questions or remarks on this channel, and a local chat operator here in Stanford will then relay them to the presenters and the local audience. You can also use this channel to get help in case of viewing problems. All presentations will be recorded and uploaded for off-line watching within a day or so. Needless to say, access to all streams is free of charge. This is all about open source after all :) The primary stream relay is available at http://ccrma.stanford.edu:8080 (located on the west coast of the US). A secondary relay which is preferrable for European users is at http://streamer.stackingdwarves.net (located in Germany). Best regards, the LAC stream team.

13 years, 8 months

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Linux-audio-dev