Linux-audio-dev

linux-audio-dev@lists.linuxaudio.org

7513 discussions

Start a nNew thread

[linux-audio-dev] Jack Release Announcement update

by Taybin Rutkin

The release number is actually 0.99.0. Jack's website is at http://jackit.sf.net. Taybin

20 years, 12 months

Re: [linux-audio-dev] Re: This better not be patented...

by Stefan Nitschke

> >On tor, 2004-09-16 at 13:14, Juhana Sadeharju wrote: > > > > "Pricing was not announced yet, but Cann says he will make his >technology > > > available for "far less" than the cost of professional studio DSP >solutions > > > which can run into the high five-figure range. He estimates the price > > > will be somewhere between $200-$800." > > > > In their website: > > Copyright © 2004 BionicFX. All rights reserved worldwide. Patent >Pending. > > >Uhmm .. They have a patent pending on 'Copyright (C) 2004' ?? >:)) > > > OK, people should start searching any text which mentions > > that GPUs could be used to audio processing. Perhaps music-dsp had > > discussions. I may have something written down on my own. > > >Here is an early paper: > > http://www.cs.washington.edu/homes/oskin/thompson-micro2002.pdf > >It is about general-purpose-computing of which audio-processing is a >subset. (BTW: Check out the aging references on the last page.) > >More papers can be found here: http://www.gpgpu.org > >/jens > > > Juhana > Sorry i missed the start of this thread. What is this patent about? Do they claim a patent on using a GPU for numeric calculations, which would be odd as a GPU is build for that, Or is it about a special technic to get the data back from the video card? According to their home page, getting the data back is a big bottle nek... so why not mixing down the tracks on the video-card, or is that also patent pending? regards, Stefan _________________________________________________________________ STOP MORE SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail

20 years, 12 months

[linux-audio-dev] Re: This better not be patented...

by Juhana Sadeharju

Here is one of music-dsp articles (critical date becomes important). http://aulos.calarts.edu/pipermail/music-dsp/2004-May/027009.html Perhaps they read that article, patented and implemented during the summer. I don't know. Juhana == cut == Bill Baldwin wbaldwin at austin.rr.com Sat May 1 15:18:11 PDT 2004 It's definitely possible, but far from convenient or optimal with today's hardware. The h/w is steadily getting better, but you'd likely run into FP precision issues on many cards. The new pixel shader 3.0 h/w is starting to appear and will become more common over the next year - this extends the instruction length of shaders, adds better flow control, and lots of other stuff that increases the potential for doing interesting audio processing. Getting the data in and out is another issue - you could treat an audio channel as a 1-dimensional texture, turn off h/w filtering, etc. - but you'd end up locking resources very frequently to write your input and read back your output, which tends to stall the graphics pipeline and thus slow things down. Still, it's worth exploring given that all that GPU power that your sequencer is ignoring... -Bill -----Original Message----- On Behalf Of vesa norilo Hi all, Has anyone thought about it? I bet someone has. There's plenty of horsepower sitting idle in PCs with modern video cards. The in them shaders are completely programmable, but I don't really know about streaming data to and fro. I just thought that it would be very neat to write a VSTi synth that runs on, say, Radeon X800 or GF6800. Is it possible at all? Vesa http://shoko.calarts.edu/musicdsp http://ceait.calarts.edu/mailman/listinfo/music-dsp == end ==

20 years, 12 months

[linux-audio-dev] Stopping sound output

by Michael Pozhidaev

Hello, everybody! I am developing a small speech server for emacspeak. For audio output I am using /dev/dsp. But I don't know how to stop playback exactly in moment I choose. Please tell me how to implement correctly this behavior or give me the link where I can read information about it. -- Best wishes. Michael Pozhidaev. E-mail: msp(a)altlinux.ru. Tomsk state university. Computer science department. (http://www.inf.tsu.ru)

21 years

[linux-audio-dev] Plugzilla LADSPA support

by Dave Phillips

This just in: http://news.harmony-central.com/Newp/2004/Plugzilla-LADPSA.html

21 years

[linux-audio-dev] Re: This better not be patented...

by Juhana Sadeharju

> "Pricing was not announced yet, but Cann says he will make his technology > available for "far less" than the cost of professional studio DSP solutions > which can run into the high five-figure range. He estimates the price > will be somewhere between $200-$800." In their website: Copyright © 2004 BionicFX. All rights reserved worldwide. Patent Pending. OK, people should start searching any text which mentions that GPUs could be used to audio processing. Perhaps music-dsp had discussions. I may have something written down on my own. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

21 years

[linux-audio-dev] Re: This better not be patented...

by Juhana Sadeharju

Here are two papers from years 2003 and 2004. http://www-sop.inria.fr/reves/publications/data/2003/TGD03b/ntsingos_gamasu… http://www-sop.inria.fr/reves/publications/data/2004/GT04/posterGP2.pdf We should find out the critical date of the patent. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

21 years

[linux-audio-dev] Re: This better not be patented...

by Juhana Sadeharju

>From: Jens M Andreasen <jens.andreasen(a)chello.se> > >> The article says quite clearly that the invention is patented. >> They would be fools not to try to patent it because the market >> is huge. > >I did not find any references to patents except for the word >"invention". Not even "patent pending"? It was this version of the news: http://www.tomshardware.com/hardnews/20040902_135943.html "Pricing was not announced yet, but Cann says he will make his technology available for "far less" than the cost of professional studio DSP solutions which can run into the high five-figure range. He estimates the price will be somewhere between $200-$800." The "technology" is the way how audio is stored to texture memory. And the audio is apparently stored as float data as the text below could indicate. "At this time, Cann plans to only support Nvidia graphics cards. "When I started, ATI had a problem with floating point data. I have heard they have resolved it, but I won't have time to purchase and research their newest cards until after this is released," he said." Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

21 years

[linux-audio-dev] A statement regarding DSSI

by Mario Lang

Hi. Some of you might remember that I once started a thread regarding the not-so-good separation of the GUIs from the DSP engines of typical LAD applications. I just took the time and looked at DSSI, and as far as I can see, it would solve most of the problems I am having regarding UIs. The OSC based UI->to->host communication concept nicely separates the actual UI from the DSP code and forces the developer to separate the GUI code from the actual backend. This would make it as simple as possible to replace existing UIs with alternative approaches. The DSSI plugin could be reused as a whole, unmodified, only the UI part would need to be re-written. Thanks to those who work on DSSI, it looks very promising to me. Any early adopters yet? -- CYa, Mario

21 years

[linux-audio-dev] a question re: the MIDI spec

by Dave Phillips

Greetings: I'm doing some research for an article about Linux MIDI support. In my text I briefly describe the evolution of the MIDI specification since its adoption, mentioning things like MIDI Time Code, MMC, the sample dump standard, and the standard MIDI file. However, one item has me a bit mystified. I'm unable to ascertain whether multi-port interfaces are in fact described and supported by the spec. I checked the MMA docs on-line, and I also have the Sciacciaferro/De Furia MIDI Programmers Handbook, but nowhere do those sources indicate explicit support for multi-port hardware. Are multi-port MIDI interfaces vendor-specific solutions or is there actually an extension to the MIDI spec somewhere that I'm just missing ? TIA! Best regards, dp

21 years

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

Linux-audio-dev