Linux-audio-dev

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7513 discussions

[linux-audio-dev] pros/cons of poll vs. asynch notify in ALSA

by jacob robbins

Anybody have any opinions on whether it is better to use polling or asynchronous notification when using the ALSA lib? i'm fishing for advantages re: speed, robustness, portability, etc -jacob robbins.....

22 years, 2 months

[linux-audio-dev] RTP MIDI update ...

by John Lazzaro

Hi everyone, Just sent in an updated version of the RTP MIDI normative I-D off to internet-drafts(a)ietf.org. You can download a copy now from: http://www.cs.berkeley.edu/~lazzaro/sa/pubs/txt/current-rtp-midi.txt In a hopeful sign, the Change Log is sufficiently short to reproduce in full below: Chapter M (Appendix A.9) has been redesigned, to follow the semantic design of Chapters C and E. Several definitions in Appendix A.1 have been changed to reflect this change, as have the chapter inclusion semantics for Chapter M in Appendix C.1.3. Many small editorial changes throughout the document, to correct grammatical errors and improve phrasing. I'm actually starting to re-code sfront networking to be compliant with the I-D (it has fallen out of date since the AVT RTP MIDI effort began), in the hopes of gcc catching bugs that peer-review may miss. Once that coding is complete, "Last Call" is probably not too far away ... so if you've been planning to spend a few hours to reading over the I-D and sending along comments, now would be a good time to do it. You might also want to download the non-normative Implementation Guide for RTP MIDI: http://www.cs.berkeley.edu/~lazzaro/sa/pubs/txt/current-guide.txt ------------------------------------------------------------------------- John Lazzaro -- Research Specialist -- CS Division -- EECS -- UC Berkeley lazzaro [at] cs [dot] berkeley [dot] edu www.cs.berkeley.edu/~lazzaro -------------------------------------------------------------------------

22 years, 2 months

[linux-audio-dev] Re: |||| Gain/Peak indicator

by Andrew Burgess

>Also for sound limiter (compressor) algorithms . Sox has a compander and there is also a Dyson compressor LADSPA plugin. http://sox.sourceforge.net/ http://plugin.org.uk/faq.php

22 years, 2 months

[linux-audio-dev] |||| Gain/Peak indicator

by Ralfs Kurmis

Hi to developers I'm search for realtime sound and peak gain indicator (db) algorithms and formulas. My first idea is all 16 bit absolute sound_sample_values in time interval t1...t2 compare with ethalon sine wave ( where ethalon sine wave amplitude is 32000 and lenght/2 is t2-t1 ) Also for sound limiter (compressor) algorithms . i'm newbie in sound/dsp programming any help welcomed tnx in advance RalfsK --- This message contains no viruses. Guaranteed by Kaspersky Anti-Virus. www.antivirus.lv

22 years, 2 months

[linux-audio-dev] Glame 1.0.1 released.

by Richard Guenther

Glame 1.0.1 was released moments ago. This release features mp3 and ogg importing support which was backported from mainline. Also minor bugs were fixed and LADSPA v1.1 hints are now honoured. Downloads are from the usual SF.net location http://prdownloads.sourceforge.net/glame/glame-1.0.1.tar.gz?download Have fun! Richard.

22 years, 2 months

[linux-audio-dev] ANNOUNCE: Ardour 0.9beta1 Slackware 9.0 packages available

by Luke Yelavich

Hi all With the release of Ardour 0.9beta1 on Sourceforge at http://sourceforge.net/projects/ardour, Slackware 9.0 packages are now available for immediate download. Download links, as well as md5sums, can be found at http://www.audioslack.com/packages/ardour. It is also worth noting that http://www.audioslack.com will hopefully become a repository of binary packages of Audio software to be used on the Slackware Linux Distribution. Please check out the site if you are interested in helping out. Your help would be much appreciated. Please feel free to contact me if you have any site suggestions, or have any problems with the packages on the site. I don't offer specific package help, but am willing to lend a hand with the installation and configuration of packages posted there. Regards Luke ---------------- Luke Yelavich AudioSlack Founder and main package maintainer Audio software packaged for the Slackware Linux Distribution http://www.audioslack.com luke(a)audioslack.com

22 years, 2 months

[linux-audio-dev] Digital Room Correction (DRC) 2.2.0

by Denis Sbragion

Hi all, fro those interested DRC 2.2.0 is available at: http://freshmeat.net/projects/drc/ This new release provides slighlty better correction accuracy. Fro the details see the FM announcement at: http://freshmeat.net/releases/127182/ Bye, -- Denis Sbragion InfoTecna Tel: +39 0362 805396, Fax: +39 0362 805404 URL: http://www.infotecna.it

22 years, 2 months

[linux-audio-dev] first ardour tarball now available

by Paul Davis

For all those of you for whom CVS was just too much to bear, Ardour is now available on ardour.sf.net as a source tarball, version 0.9beta1. You will still need to have several external libraries installed to build and/or use it (see the README), but this release marks the end of a long road for Ardour, and the start of an even longer one. I am off on vacation with my daughter for a few weeks, hiking in the mountains and canyons of the west. When I return, it will be time to push Ardour towards its 1.0 release, scheduled for late July/early August. --p

22 years, 2 months

[linux-audio-dev] AudioScience GPL'd drivers

by Robert Jonsson

So... I'm not exactly sure what these Guys are good for, audio cards for broadcast industry? Apparently they have GPL'd the interface code for their "sound cards". They talk about DSP access also, but I guess it isn't *programmable* DSP, just access to what's already in there... If any one is interested they can have a look here: http://www.rwonline.com/dailynews/one.php?id=3455 http://audioscience.com/ /Robert

22 years, 2 months

Re: [linux-audio-dev] realtime compression

by tzahm

Have a look at Speex (http://speex.org/). ::: sam ::: >Hi to all, > >I´m looking for a codec that is able to do realtime compression as fast as >possible in order to use it for high speed audioconferencing. >Thought about values < 5ms ... don´t know what´s possible and what not - >just a first request, any information appreaciated. > >Thanks in advance -- A l e x

22 years, 2 months

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