Linux-audio-dev June 2003

linux-audio-dev@lists.linuxaudio.org

85 participants
85 discussions

[linux-audio-dev] Call for participation: MMA GMPI working group

by RonKuper＠Cakewalk.com

The Generalized Music Plug-In Interface (GMPI) working group of the MIDI Manufacturer's Association (MMA) is seeking the input of music and audio software developers, to help define the technical requirements of GMPI. The objective of the GMPI working group is to create a unified cross-platform music plug-in interface. This new interface is hoped to provide an alternative choice to the multitude of plug-in interfaces that exist today. Among the many benefits of standardization are increased choice for customers, lower cost for music plug-in vendors and a secure future for valuable market-enabling technology. Like MIDI, GMPI will be license free and royalty free. Phase 1 of the GMPI working group's effort is to determine what is required of GMPI: What sorts of capabilities are needed to support existing products and customers? What are the emerging new directions that must be addressed? Phase 1 is open to any music software developer and is not limited to MMA members. It will last a minimum of three months, to be extended if deemed necessary by the MMA. Discussions will be held on an email reflector, with possible meetings at major industry gatherings such as AES, NAMM and Musik Messe. Following the collection of requirements in Phase 1, the members of the MMA will meet to discuss and evaluate proposals, in accordance with existing MMA procedures for developing standards. There will be one or more periods for public comment prior to adoption by MMA members. If you are a developer with a serious interest in the design of this specification, and are not currently a member of the MMA, we urge you to consider joining. Fees are not prohibitively high even for a small commercial developer. Your fees will pay for administration, legal fees and marketing. Please visit http://www.midi.org for more information about membership. To participate, please email gmpi-request(a)freelists.org with the word "subscribe" in the subject line. Please also provide your name, company name (if any) and a brief description of your personal or corporate domain of interest. We look forward to hearing from you. Sincerely, Ron Kuper GMPI Working Group Chair

21 years, 2 months

[linux-audio-dev] sc synth definition file format?

by Dr.Graef＠t-online.de

Hi, I'm currently embarking on a project to make an interface between Q, a functional programming language (http://www.musikwissenschaft.uni-mainz.de/~ag/q/), and SuperCollider. I think the OSC interface will be fairly straightforward to do, but I haven't been able to find any documentation (besides the sc sources, which I haven't grokked yet ;-) on the format of the synth definition file. Does anyone here know more about this? Many thanks in advance, Albert -- Dr. Albert Gr"af Email: Dr.Graef(a)t-online.de, ag(a)muwiinfa.geschichte.uni-mainz.de WWW: http://www.musikwissenschaft.uni-mainz.de/~ag

21 years, 4 months

[linux-audio-dev] 2nd LAD conference in Karlsruhe

by Matthias Nagorni

Hello, as both the participants of the 1st LAD conference and people at ZKM enjoyed the meeting, Frank and I asked for the possibility to hold a second meeting at ZKM next year. The answer was positive and therefore we can announce that the 2nd LAD conference is planned to take place April 29th - May 2nd 2004 at ZKM Karlsruhe. the option to have more room. In addition to the rooms we had for the last conference, we now have the option to also use a hall which is about double the size of the lecture hall we used for the last meeting. This hall is even more attractive since it is the recording studio of ZKM and can also serve as a concert hall. This time there is also the option to invite artists who actually do music with Linux software. Early registrations (email either me or Frank Neumann <Frank.Neumann_AT_st.com>) would help us to estimate the approximate scale of the event which can be even larger than last time. If you can do a talk or presentation please let us know the subject and estimated time you need for this. Depending on the number of talks we can decide whether we will have two parallel sessions. If the program of the event is fixed earlier than last time, this will help to advertise it in journals and among relevant companies. It might also help to find possible sponsors. Updates on this will follow from time to time. Matthias -- Dr. Matthias Nagorni SuSE Linux AG Deutschherrnstr. 15-19 phone: +49 911 74053375 D - 90429 Nuernberg fax : +49 911 74053483

21 years, 5 months

[linux-audio-dev] Using 'fastaudio', the python wrapper to PortAudio

by Frederic

Hello, (I'm not sure if this is the right list to post this question. Please let me know if I should use the user list instead). I made a C program using PortAudio, and I would like to re-write it in python, using the wrapper fastaudio. There is a little example in the fastaudio package, but not enough to understand how to use the callback function. Does anybody has a more complex example, using callback ? Regards, -- Frederic http://linux.gbiloba.org

21 years, 5 months

[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.....

21 years, 5 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 -------------------------------------------------------------------------

21 years, 5 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

21 years, 5 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

21 years, 5 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.

21 years, 5 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

21 years, 5 months

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Linux-audio-dev June 2003