Linux-audio-dev

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7440 discussions

[linux-audio-dev] [ANN] Snd-ls V0.9.1.1 and Sono V0.2

by Kjetil Svalastog Matheussen

http://www.notam02.no/arkiv/src/ Snd-ls 0.9.1.1 changes: 0.9.1 -> 0.9.1.1: -Fixed Append File edit-menu option. -Workaround for trouble with ladspa default settings. Sono 0.2 changes: Some very few small changes to make it compile with linux again. Used some code from the port for Redhat 6 in 2000 by Roger Klaveness. Snd-ls ------- Snd-ls is a distribution of the sound editor Snd. Its target is people that don't know scheme very well, and don't want to spend too much time configuring Snd. It can also serve as a quick introduction to Snd and how it can be set up. SONO - MAKES A PRESENTABLE SCORE FROM YOUR ELECTROACOUSTIC PIECE ---------------------------------------------------------------- This little program takes a soundfile of any length and writes a Postscript file with a 'score', including sonogram and oscillogram. This can be printed directly on your laser. Sono was written for SGI computers. --

19 years, 11 months

[linux-audio-dev] [ANNOUNCE] SRC support for XMMS OSS output plugin

by Jussi Laako

Hi, I have made a patch which adds support for samplerate conversion to XMMS's OSS output plugin. Samplerate conversion is done using Erik de Castro Lopo's libsamplerate aka Secret Rabbit Code. Why? Because there are soundcards which support only single samplerate in hardware (usually 48 kHz). To get best possible sound quality out of these, you'll need high quality samplerate conversion when playing 44.1 kHz files/streams. All comments on this are welcome. Patch is available from: http://www.sonarnerd.net/linux/xmms-rabbit.patch -- Jussi Laako <jussi.laako(a)pp.inet.fi>

19 years, 11 months

[linux-audio-dev] Speech recognition

by Susan R. Cragin

Hello. I am a not-very-technical person trying to get some opinions to pass along to our group. We are trying to get speech recognition working on Linux and want to test everything using the same USB sound pod and the best microphone, provided that the equipment is widely available to the general public. Right now the microphone of choice seems to be the Sennheiser MD 431 II. For USB Sound Pod we understand that many of them do not run properly with Linux, and of those that do, some do not transmit enough subtlety to capture small variations in speech. Any and all suggestions or comments would be appreciated. Susan Susan R. Cragin, Director Open-Source Speech Recognition Initiative susancragin(a)earthlink.net http://www.ossri.org http://harvee.org/mailman/listinfo/ossri susancragin(a)earthlink.net

19 years, 11 months

[linux-audio-dev] [ANN] liblo 0.13

by Steve Harris

liblo is an implementation of the Open Sound Control[1] protocol for POSIX systems. It is written in ANSI C and released under the GNU General Public Licence. It is designed to make developing OSC applictions as easy as possible. http://plugin.org.uk/liblo/ This release adds Mac OSX compatibility fixes from Taybin Rutkin, a memory leak fix from Jesse Chappell and methods and examples to allow server polling from exisitng threads from Sean Bolton. Some legacy compatobility code has been removed, but this should not affect anyone. Documentation has been updated to reflect the changes. [1] http://www.cnmat.berkeley.edu/OpenSoundControl/ [website is currently down]

19 years, 11 months

Re: [linux-audio-dev] Re: killer app idea

by Dave Griffiths

Going slightly off topic, an idea I'd like to try is a hexagonal drum pattern sequencer. I got the idea from this: http://www.soundonsound.com/sos/apr04/images/autechremax2.l.jpg I have no idea how it actually works, but from that patch I got thinking that you could get multiple loops from the same pattern by moving time in different directions across a (non rectangular) tesselated grid. If you see what I mean!?? I'm going to hack together a little script to do this, when/if I have time, but feel free to take this idea further... On Tue, 19 Oct 2004 09:28:40 +0200, Aaron wrote > So your saying the idea of rectangles might be patented?? > > So I might be forced to use pentgons or octagons? Maybe the color > will also be a problem.... > > Aaron > On Tue, 2004-10-19 at 09:09, Juhana Sadeharju wrote: > > >From: Aaron <aamehl(a)actcom.net.il> > > > > > >1. Basically a front end to lilypond which will work > > >more like a audio program. > > > > I remember something like that has been discussed somewhere > > earlier. > > > > Well, if the rectangle on the track editor is made with audio editor, > > it is displayed as waveform or as spectogram. If the rectangle on > > the track is made with midi editor, it is displayed as matrix. > > If the rectangle is made with X editor, it is displayed as X. > > > > When one zooms in to these displays, they might become editable. > > (Waveform display usually does.) > > > > Maybe this should be mentioned in this context (before anyone > > patents all these ideas): a rectangle may have different > > reprentations and thus different display styles. E.g., if the > > original data is audio, then the another representation could > > be sequence data (midi?) generated with, e.g., wave-to-midi. > > When the audio is edited, the other representation is changed > > automatically (possibly using lazy-evaluation). If the original > > is the sequence, then audio is just renderation of the sequence > > (sort of freeze feature). > > > > I wanted to write about this multiple-representations because > > in graphics, Silicon Graphics (Wavefront-Alias, Maya) has a patent > > on using multiple reprentations. User-friendly for user-editing, > > faster for rendering. I invented exactly that basic idea in high > > school 10 years before they! > > > > So, if there are further ideas, lets hear them all now before > > the ideas are patented. > > > > Juhana

19 years, 11 months

[linux-audio-dev] Re: killer app idea

by Juhana Sadeharju

>From: Aaron <aamehl(a)actcom.net.il> > >1. Basically a front end to lilypond which will work >more like a audio program. I remember something like that has been discussed somewhere earlier. Well, if the rectangle on the track editor is made with audio editor, it is displayed as waveform or as spectogram. If the rectangle on the track is made with midi editor, it is displayed as matrix. If the rectangle is made with X editor, it is displayed as X. When one zooms in to these displays, they might become editable. (Waveform display usually does.) Maybe this should be mentioned in this context (before anyone patents all these ideas): a rectangle may have different reprentations and thus different display styles. E.g., if the original data is audio, then the another representation could be sequence data (midi?) generated with, e.g., wave-to-midi. When the audio is edited, the other representation is changed automatically (possibly using lazy-evaluation). If the original is the sequence, then audio is just renderation of the sequence (sort of freeze feature). I wanted to write about this multiple-representations because in graphics, Silicon Graphics (Wavefront-Alias, Maya) has a patent on using multiple reprentations. User-friendly for user-editing, faster for rendering. I invented exactly that basic idea in high school 10 years before they! So, if there are further ideas, lets hear them all now before the ideas are patented. Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

19 years, 11 months

[linux-audio-dev] OSC Touchscreen Device

by Andreas Roedl

Hello! Sorry for the crosspost, but I couldn't resist - I'm too excited. This device looks promising: http://www.jazzmutant.com/lemur_overview.php Andi -- -> Andreas Roedl -> Senior IT Manager -> NATIVE INSTRUMENTS GmbH -> andreas.roedl(a)native-instruments.de -> Schlesische Strasse 28 -> http://www.native-instruments.de/ -> D-10997 Berlin -> Tel. +49-30-61 10 35-430 -> Germany -> Fax +49-30-61 10 35-35

19 years, 11 months

Re: [linux-audio-dev] 3D fft analysis program

by michael tewner

I'm currently doing this in TCL/TK. I started using the snack audio library which (anong other things) makes spectrograms. I give it consecutive chunks of audio and have it redraw to the canvas every n milliseconds. I think it's having trouble keepingup, and it only knows how to do 2d plots. I'm considering doing the processing beforehand (ie, on load) and storing the entire time-domain fft into a matrix, then using a graphics library (plot3d) to graph it in real time... unless I can figure outhow to multithread the program to allow one function to read ahead while the other graphs it. Anyway, I've never programed tcl/tk before, but I'm trying to get this done before january. -tewner > On Sun, 3 Oct 2004, Dave Phillips wrote: > > > HiAndres: > > > > At last, someone's going to try it ! :) > > > > I'm hoping that you're thinking of a realtime display, in which the > > peaks roll off to create a true waterfall effect. > > > > Stanko Juzbasic has tried to port Alan Peever's Spectrogram from SGI > > machines to Linux, but I've not been able to get his sources built on my > > systems. > > > > Please keep me informed about your progress, I've wanted such a > > program for many years. > > > > Best regards, > > > > dp > > > > > > > > Andres Cabrera wrote: > > > >> Hi all, > > > I am planning to develop a 3d fft display (sometimes called cascade > > > display), since I haven't found an application that does that in linux. > > > Does anyone know if such an application exists or is in the works? > > > > > > Cheers, > > >Andr?s > > > > > > > > > > > > >

19 years, 11 months

[linux-audio-dev] Looking for a home for a small jack utility....

by Dan Mills

Hi All, I have a small utility (jackswitch - a clickless <hopefully> audio switch for the jack enviroment) and was wondering if there is a site for hosting this kind of small simple utility program. Sure I could create a web site for it but it seems rather silly to write a website that is probably going to be larger then the tarball it is created to host! Steve, would plugin.org.uk take it?

19 years, 11 months

[linux-audio-dev] noatime?

by Juhana Sadeharju

Hello. After all the other disk tunings, does noatime in the mount options help? When the atime is changed? At each read()? Juhana -- http://music.columbia.edu/mailman/listinfo/linux-graphics-dev for developers of open source graphics software

19 years, 11 months

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Linux-audio-dev