[ecasound] [ANN] Ecasound 2.5.2 released

From: Kai Vehmanen <kvehmanen@email-addr-hidden>
Date: Sun Aug 24 2008 - 13:58:01 EEST

1. Summary of changes

Bug in channel routing of LADSPA plugins that have more
audio output ports than input ports has been fixed.

2. What is Ecasound?

Ecasound is a software package designed for multitrack audio
processing. It can be used for simple tasks like audio playback,
recording and format conversions, as well as for multitrack effect
processing, mixing, recording and signal recycling. Ecasound supports
a wide range of audio inputs, outputs and effect algorithms.
Effects and audio objects can be combined in various ways, and their
parameters can be controlled by operator objects like oscillators
and MIDI-CCs. A versatile console mode user-interface is included
in the package.

Primary platform for running Ecasound is GNU/Linux. Ecasound can
also be run on many UNIX-derived systems such as FreeBSD, Mac OS X
and Solaris. Limited support for Windows is available through
Cygwin. Ecasound is licensed under the GPL. The Ecasound Control
Interface (ECI) is licensed under the LGPL.

3. Changes in 2.5.x series


* Bug fixes only.


* Reverted some of the changes in 2.5.0 related to handling of
   session cleanup after receiving a SIGTERM/INT/HUP signal. While
   not reproducible on all systems, some users reported that
   quitting ecasound with a ctrl-C caused the whole X session
   to terminate. This bug is now fixed in 2.5.1.


* Added a new audio looper object. For instance "-i:audioloop,foo.wav"
   will play "foo.wav" and loop it indefinitely. See http://eca.cx/examples
   and ecasound(1) man page for more information.

* Added a new audio selector object. Specifying
   "-i:select,5,15.2,foo.wav" will play out 15.2sec of
   "foo.wav", starting at position 5sec (i.e. selects range
   5.0-20.2sec). See http://eca.cx/examples and ecasound(1)
   man page for more information.

* Added a new sequencer object that allows to play audio
   clips at a given position. Specifying
   "-i:playat,25.0,foo.wav" will play out "foo.wav"
   starting at position 25.0sec (i.e. the first 25.0secs
   will be silent and then "foo.wav" is played from
   the beginning). See http://eca.cx/examples and ecasound(1)
   man page for more information.

* Ability to stack audio objects. For instance
   "-i audioloop,reverse,select,10,15,foo.wav" will loop
   a reversed 15sec segment taken from 10sec onwards
   from 'file.wav'.

* Code for Ecasound Wave Files (EWF) has been mostly rewritten
   to fix longstanding bugs and design issues. This release also
   marks the ability to write to EWF files as a deprecated feature
   that will be removed in a later release. One new feature is
   the ability to specify parameters in terms of samples instead
   of seconds.

* Added a simple tone generator object. For example '-i:tone,sine,440,10.3'
   will produce a 440Hz sine tone with duration of 10.3 seconds. This input
   type will be especially useful for reproducing bugs in complicated
   chainsetups, without the need to exchange complete session data (which
   usually are composed of large amounts of audio files).

* Added 'reopen-count' parameter to threshold gate (-ge) operator.
   For instance when recording vinyl/tapes, this allows to automatically
   restart recording when a new track is started. When the gate is
   closed, no audio is passed through to the output file, but
   otherwise recording is kept running. Patch from Andrew Lees.

* Major update to the "Ecasound Examples": http://eca.cx/examples

* Updates to ecasound.el (ecasound emacs mode): new ECI commands

* Various bugs (in runtime functionality, documentation as well as
   build issues) have been fixed.

Full list of changes is available at:
  - http://www.eca.cx/ecasound/history.php

4. Interface and configuration file changes

None in this release.

5. Contributors to 2.5.x series

Patches - Accepted code, documentation and build system changes

   * Cyril Brulebois (1) [cyrilbrulebois]
       Compilation error with GCC-4.3. Reported as Debian
       bug #454890.
   * Fabian Groffen (1) [grobian]
       Fixed Mac OS X 10.5 build error.
   * Andrew Lees (1) [andrewl]
       Added 'reopen-count' parameter to '-ge'.

Bug Hunting - Reports that led to bugfixes (items closed)

   * Sergei Steshenko (1)
       Bug in LADSPA plugin channel routing.
   * Sergei Steshenko (2)
       Bug in registering LADSPA plugins. The "X crash bug".
   * Alexis Ballier (1)
       A last minute change in 2.5.0 that causes build errors
       with gcc-4.3.1.
   * Oliver Oli, Dubphil (1)
       The "X crash bug".
   * Julien Claassen (2)
       Traced down a severe error in the development builds related
       to parsing and handling JACK connection parameters. Bugs
       in the refactored EWF code.
   * Rocco (2)
       Bugs in the new 'audioloop' object. Bug in JACK server
       connection management.
   * Duphil (1)
       Bug in 'cs-save/cs-save-as'.
   * Jan Weil (1)
       Bug in 'cs-status' output.
   * Sergei Steshenko (1)
       Sloppy parsing of "loop" device arguments

Feature suggestions - Ideas that led to new features (items)

   * Sergei Steshenko (1)
       Ability to use string tags as loop device identifiers

6. Links and files

Web site (and mirrors):
         http://eca.cx (fi)
         http://ecasound.seul.org (us)
         http://ecasound.sourceforge.net (us)

Source packages:
         md5sum: c7d26db96a7ea5749df9d5137d3c397d

List of distributions with maintained Ecasound support:
         See http://eca.cx/ecasound/download.php

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Received on Sun Aug 24 16:15:02 2008

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