Linux-audio-announce September 2002

linux-audio-announce@lists.linuxaudio.org

11 participants
14 discussions

[linux-audio-announce] Sweep 0.5.4 -- !ybburcS olleH

by Conrad Parker

Sweep 0.5.4 Development Release ------------------------------- Sweep is a sound wave editor, and it is now also generally useful as a flexible recording and playback tool. Inside lives a pesky little virtual stylus called Scrubby who enjoys mixing around in your files. This development release is available as a source tarball at: http://prdownloads.sourceforge.net/sweep/sweep-0.5.4.tar.gz?download Changes since version 0.5.3 (September 5 2002) include bug fixes for playback during destructive operations and for edits of tiny regions, and improvements in configuration checks for libsndfile-1.0.0. Additionally, scrubbing is now working for reverse playback, and has been tuned for responsiveness independent of sample rate. There is now a web page introducing Scrubby and outlining a few simple editing and live performance techniques: http://www.metadecks.org/software/sweep/scrub.html Summary of library dependencies: * GTK+ 1.2 (standard in most distributions) * libsndfile-1.0.0, available at: http://www.zip.com.au/~erikd/libsndfile/libsndfile-1.0.0.tar.gz * libtdb, available in many distributions or at: http://www.sourceforge.net/projects/tdb Screenshot: http://www.metadecks.org/software/sweep/images/screenshots/sweep_20020813.p… Sweep is designed to be intuitive and to give you full control. It includes almost everything you would expect in a sound editor, and then some: * precise, vinyl like scrubbing * looped, reverse, and pitch-controlled playback * playback mixing of unlimited independent tracks * looped and reverse recording * internationalisation * multichannel and 32 bit floating point file support * LADSPA 1.1 effects support * multiple views, discontinuous selections * easy keybindings, mouse wheel zooming * unlimited undo/redo with fully revertible edit history * multithreaded background processing * shaded peak/mean waveform rendering, multiple colour schemes Help wanted! Sweep needs testing; please report any problems encountered! Urgent development is required in the following areas: ALSA and Jack support, updating of translations and user documentation. (NB. Sweep works fine with ALSA under OSS emulation -- the native ALSA support needs some fixing). Sweep is Free Software, available under the GNU General Public License. More information is available at: http://www.metadecks.org/software/sweep/ Thanks to Pixar Animation Studios and CSIRO Australia for supporting the development of this project. enjoy :) Conrad.

21 years, 9 months

[linux-audio-announce] Announcement: Frequency domain audio analysis tools

by Silvia.Pfeiffer＠csiro.au

We have recently ported our frequency-domain audio analysis library Maaate to the Windows platform and fixed some minor bugs and compile warnings. This is the announcement of Maaate Version 0.3.0 available for Linux, Windows and Solaris. (It uses bewdy 0.2.2 for visualisation under Linux only.) http://www.cmis.csiro.au/maaate/ Maaate: ======= Maaate is a C++ frequency domain audio analysis toolkit. http://www.cmis.csiro.au/maaate/docs/index.html Maaate is a set of libraries supporting frequency-domain based feature analysis. Although it currently only works on MPEG compressed audio files in the compressed domain, the interface to plug-in other file formats (uncompressed or compressed) exists. Maaate also contains some 30 audio feature extraction, segmentation and classification algorithms. It's all published under the GNU GPL. Download it from: http://www.cmis.csiro.au/maaate/docs/download.html Highlights of Maaate version 0.3.0: - a generic frequency-domain based analysis framework - a specific MPEG compressed (frequency) domain analysis library - 30 analysis modules covering * energy features (usable for loudness statistics), * bandwidth features (usable for speech/music segmentation), * spectral statistics (usable for sound type distinction), * silence statistics (usable for speech/music segmentation), * noise features (usable for explosion or crowd cheer detection), * generic segmentation algorithms (thresholds on features) and * some generic statistical algorithms (histogram, variance). - extensive documentation on all modules is also available online (http://www.cmis.csiro.au/maaate/docs/modules.html) - works under Linux, Windows and Solaris Bewdy : ======= Play around with the compressed audio content of MP3 files under Linux! http://www.cmis.csiro.au/maaate/bewdy/index.html Bewdy is a program to visualise frequency domain audio feature analysis and segmentation algorithms. For example, it can display the spectral content of an MPEG audio file in the compressed domain and allows you to play around with analysis algorithms on that data. It uses the (MPEG) Maaate libraries for that purpose and can thus load up any analysis module that is implemented for Maaate. The pictures at http://www.cmis.csiro.au/maaate/snapshots.html and at http://www.cmis.csiro.au/maaate/bewdy/docs/handbook.html show off more of bewdy. Download bewdy from: http://www.cmis.csiro.au/maaate/bewdy/index.html Download Maaate from: http://www.cmis.csiro.au/maaate/docs/download.html About CSIRO audio analysis research: ==================================== Here at CSIRO, an Australian government research organisation, we perform research into the analysis of music and sound. We create software to unravel the structure and texture of recorded audio, and we develop systems which make use of the information extracted. Examples of such systems include searching for music features and indexing soundtracks. Much of our work is available as open source software. See: http://www.cmis.csiro.au/audio/ --- Silvia Pfeiffer <Silvia.Pfeiffer(a)csiro.au>

22 years, 1 month

[linux-audio-announce] DJCJ.ORG - The Linux Audio Users Guide

by Patrick Shirkey

In the interests of making life easier for my fellow penguinistas Boost Hardware has aquired a new user friendly, audio centric, domain name. You can now point your browser at http://www.djcj.org and the space occupied by the LAU guide and the quicktoots will be rendered before your eyes. -- Patrick Shirkey - Boost Hardware Ltd. For the discerning hardware connoisseur Http://www.boosthardware.com Http://www.djcj.org - The Linux Audio Users guide ======================================== "Um...symbol_get and symbol_put... They're kindof like does anyone remember like get_symbol and put_symbol I think we used to have..." - Rusty Russell in his talk on the module subsystem

22 years, 1 month

[linux-audio-announce] meterbridge 0.0.4

by Steve Harris

Now supports connecting to input ports and you can control the number of columns of meters with -c, -c 1 will give you a vertical strip. http://plugin.org.uk/meterbridge/meterbridge-0.0.4.tar.gz Input monitoring "works" by disconnecting everything from the port, connecting it to the meter in and connecting the monitor out of the meter to the original port. When it quits it tries to put things back the way they should be, but it might not always get it right. If you run too many (8+) then things start to get dodgy, jack carries on running, but you can't quit meters. I don't know why. Thanks to Joern and Gerd for testing the extra-alpha versions, and Kai for fixing the autoconf mess. - Steve

22 years, 1 month

[linux-audio-announce] JACK Meterbridge

by Steve Harris

http://plugin.org.uk/meterbridge/ Almost useful and looks kinda funky. More-or-less compliant with BS 6840-10, BS 6840-17:1991 and IEC 268-18:1995. Enjoy, Steve

22 years, 1 month

[linux-audio-announce] New software synthesizer for Linux (free under GPL v. 2)

by Nasca Paul

Hi, I wrote a software syntesizer for Linux, it is available at http://zynaddsubfx.sourceforge.net/ or http://sourceforge.net/projects/zynaddsubfx/ . It has many features including: polipohony, multi-timbral, microtonal capabilities, 2 synth engines, effects (system and insertion), user interface. I started this project on March 2002 and this is the first relase. I hope that you'll like it. Paul. __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com

22 years, 1 month

[linux-audio-announce] Sweep 0.5.6 -- Scrubby is watching you

by Conrad Parker

Sweep 0.5.6 Development Release ------------------------------- Sweep is a sound wave editor, and it is now also generally useful as a flexible recording and playback tool. Inside lives a pesky little virtual stylus called Scrubby who enjoys mixing around in your files. This development release is available as a source tarball at: http://prdownloads.sourceforge.net/sweep/sweep-0.5.6.tar.gz?download Changes in this version include monitoring of file modification, "are you sure" dialogs, file revert, and many minor bug fixes. There will be a demo of the latest Sweep features, including live DJing and experimental music techniques and the Sydney LUG meeting on Sep. 27 2002; see http://www.slug.org.au/ for details. Summary of library dependencies: * GTK+ 1.2 (standard in most distributions) * libsndfile-1.0.x, available from: http://www.zip.com.au/~erikd/libsndfile/ * libtdb, available in many distributions or at: http://www.sourceforge.net/projects/tdb Screenshot: http://www.metadecks.org/software/sweep/images/screenshots/sweep_20020813.p… Sweep is designed to be intuitive and to give you full control. It includes almost everything you would expect in a sound editor, and then some: * precise, vinyl like scrubbing * looped, reverse, and pitch-controlled playback * playback mixing of unlimited independent tracks * looped and reverse recording * internationalisation * multichannel and 32 bit floating point file support * LADSPA 1.1 effects support * multiple views, discontinuous selections * easy keybindings, mouse wheel zooming * unlimited undo/redo with fully revertible edit history * multithreaded background processing * shaded peak/mean waveform rendering, multiple colour schemes Help wanted! Sweep needs testing; please report any problems encountered! Urgent development is required in the following areas: ALSA and Jack support, updating of translations and user documentation. (NB. Sweep works fine with ALSA under OSS emulation -- the native ALSA support needs some fixing). Sweep is Free Software, available under the GNU General Public License. More information is available at: http://www.metadecks.org/software/sweep/ Thanks to Pixar Animation Studios and CSIRO Australia for supporting the development of this project. enjoy :) Conrad.

22 years, 1 month

[linux-audio-announce] PHP bindings for ecasound's ECI interface released

by Kai Vehmanen

Hi, writing ECI applications is now also possible with PHP! This was made possible by Tony Leake, who has released a PHP extension for ecasound's [1] ECI interface. Anyone interested can download it and find simple documentation at http://www.webwise-data.co.uk/php_audio/php_audio_extension.html ECI (Ecasound Control Interface) is a compact, stable interface for building audio applications and automation scripts on top of the ecasound framework. In addition to PHP, bindings are available for C, C++, Perl and Python. ECI is fully LAB [2] compliant featuring support for ALSA, JACK and LADSPA 1.0/1.1. To find more information about ECI (Ecasound Control Interface), check out the following links: http://www.wakkanet.fi/~kaiv/ecasound/Documentation/ecidoc/eci_doc.html http://www.wakkanet.fi/~kaiv/ecasound/Documentation/programmers_guide/progr… http://www.wakkanet.fi/~kaiv/ecasound/Documentation/ecasound-iam_manpage.ht… [1] http://www.eca.cx/ecasound [2] Linux-Audio-Buzzword :) -- http://www.eca.cx Audio software for Linux!

22 years, 1 month

[linux-audio-announce] Alternative Csound Reference Manual 4.21-1

by Kevin Conder

Alternative Csound Reference Manual, 4.21-1 edition Date: September 22, 2002 About: The Alternative Csound Reference Manual is a reference manual for the Csound sound synthesis program (http://www.csounds.com/). It has been brought up-to-date to the latest version of Csound, 4.21. Changes: Added documentation for the following opcodes: a, butbp, butbr, buthp, butlp, cngoto, convle, else, elseif, endif, ftload, ftloadk, ftsave, ftsavek, ink, invalue, ktableseg, oscilx, outk, outvalue, reverb2, subinstr, and sense. Downloads: http://kevindumpscore.com/download.html#csound-manual DocBook/SGML, HTML, PDF, or ASCII text versions are available. On-line edition: http://kevindumpscore.com/docs/csound-manual/ -- Kevin Conder, kevin(a)kevindumpscore.com

22 years, 1 month

[linux-audio-announce] GStreamer 'GEPpiness is a warm gun' 0.4.1

by Christian Fredrik Kalager Schaller

GStreamer "GEPpiness is a warm gun" 0.4.1 released [1] The GStreamer team is happy to announce another release of the GStreamer streaming-media framework. This release has mainly focused on code clean-up and rounding out of the features. Large chunks of GStreamer are API stable at this point. In preparation of a stable release, we have also done a thorough license audit to make sure that the licenses of all plug-ins are properly documented, and that as many of them as possible are available under the LGPL license that GStreamer uses. We are starting to have a really nice collection of applications under development using GStreamer. If you are looking for something specific check out our applications status page: http://www.gstreamer.net/status/?category=2 Downloading GStreamer You find information about the binaries we provide and the source tarballs at: http://www.gstreamer.net/releases/0.4.1/ Updates and Enhancements General * Further work on the Graphical Pipeline Editor, getting to be very stable and well working. * KDE/Qt bindings created for easier creation of KDE applications on top of GStreamer * General C++ bindings for use with gtkmm and other C++ projects added to gst-bind module (in CVS) * Effectv and virtualdub based plug-ins relicensed under LGPL (previously GPL) * Some manual examples updated and extracted to code (in examples/manual) Core * Many memleaks plugged * Lots of code cleaning * Many documentation improvements * Small change to Plugin API * Removed use of -Wall and -Werror from release tarball for non-gcc compilers, more permanent solution upcoming. * Old schedulers renamed: we now use basicomega as the default scheduler, with the others being fastomega, basicwingo and fastwingo. Plug-ins * BSD and Darwin cd playing * New Mixermatrix plugin added * New Flash plugin added * RTP plugin moved back to librtp and plugin now includes library code (still experimental, check configure --help on how to enable) * New v4l2 plugins * Updated v4l plugins * Improvements to dvdnav plugin * iRadio support added to gnomevfs plugin * Median video plugin updated and now working * Fixed many major bugs in the gnome-vfs library * Got rid of misleading warnings from plugins * Avi muxer much improved * Fix bug in mad plugin that caused loss of frames * mp3 typefind fixed to properly handle id3v2 tags Known Issues GStreamer currently ships with schedulers based on two cothread packages. The 'omega' cothread package is the one we have been shipping for a long time now and is still the default in this release. There are however some limitations and thread-related bugs in the omega scheduler. These limitations are not present in the 'wingo' schedulers, but unfortunately it does not work with i686 glibc at this time due to differences in the way threads are handled compared to other architectures, including i386. A new (third) scheduler (that doesn't use cothreads) is being developed. As for the bugs in the 'omega' schedulers, we did not feel they warranted not releasing 0.4.1 as they are rather obscure. For instance if you are using Rhythmbox you will need to be playing over 500 songs nonstop to trigger it. You can choose a different scheduler by passing --scheduler=(name) to any GStreamer application. Wim Taymans has started work on a new scheduler. The first part is already in CVS, but it will probably still be some months before it is ready. More details on these features can be found on the project's website, http://gstreamer.net/. Support and Bugs We use Gnome's Bugzilla for bug reports and feature requests. http://bugzilla.gnome.org The "product name" is GStreamer (capital G). Please do the following before writing a bug report : gst-feedback &> feedback 2>&1 and attach the file "feedback" to your bug report, so that we have some information useful in the debugging process. Developers GStreamer is hosted on SourceForge. All code is in CVS and can be checked out from there. Interested developers of the core library, plug-ins, and applications should subscribe to the gstreamer-devel list. If there is sufficient interest we will create more lists as necessary. We are still looking for people with access to Solaris, HP-UX, Irix and True64 that would be willing to try building and testing GStreamer. Patches fixing such problems are also more than welcome. Contributors to this release Patches to the core of Gstreamer * Wim Taymans <wim.taymans(AT)chello.be> * Thomas Vander Stichele <thomas(AT)apestaart.org> * Andy Wingo <wingo(AT)pobox.com> * Steve Baker <stevebaker_org(AT)yahoo.co.uk> * Cameron Hutchison <camh(AT)xdna.net> * Iain Holmes <iain(AT)prettypeople.org> * Ronald Bultje <rbultje(AT)ronald.bitfreak.net> Plugins and Sample Applications * Richard Boulton <richard(AT)tartarus.org> * David Lehn <dlehn(AT)vt.edu> * Jérémy Simon <jsimon13(AT)yahoo.fr> * Zeeshan Ali Khattak <zak147(AT)yahoo.com> * David Schleef <ds(AT)schleef.org> * Charles Schmidt <cbschmid(AT)users.sourceforge.net> * Goraxe <goraxe(a)ntlworld.com> * Colin Walters <walters(AT)gnu.org> * Kristian Rietveld <kris(AT)gtk.org> Misc * Christian Fredrik Kalager Schaller <Uraeus(AT)gnome.org> * Tim Jansen <tim.jansen(AT)kde.org> * Leif Morgan Johnson <lmjohns3(AT)eos.ncsu.edu> * Christian Meyer <chrisime(AT)gnome.org> [1] It is a little-known fact that the Beatles decided their track listing for their albums based on a process called the 'GEP' process. After some initial problems, this worked very well. The only known failure of this process happened when George Harrison commited the out-of-place 'Within You Without You' to Sergeant Pepper without review by the other band members. This near split-up led to one of their finest songs on the world-reknowned White Album.

22 years, 1 month

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Linux-audio-announce September 2002