[LAA] StretchPlayer 0.502: Real-time audio player with time stretch

Gabriel M. Beddingfield gabrbedd at gmail.com
Mon Jul 12 03:43:41 UTC 2010


I am pleased to release StrechPlayer 0.502, a time-stretching,
pitch-shifting audio file player.  It is powered by librubberband, and
also features an A/B repeat.

NEW IN THIS RELEASE
-------------------

     * Reduced Xorg load (was typ. 20-30% CPU even
       when idle)
     * Fix build errors on 64-bit systems (incompatible
       integer types).
     * Add CMake USE_COMPOSITING option to explicitly
       disable compositing features.

LINKS
-----

Home Page:   http://www.teuton.org/~gabriel/stretchplayer/

Tarball:     http://www.teuton.org/~gabriel/stretchplayer/stretchplayer_0.502.tar.gz

Binary:      Ubuntu/Karmic
              http://www.teuton.org/~gabriel/stretchplayer/stretchplayer_0.502_karmic_i386.deb
              http://www.teuton.org/~gabriel/stretchplayer/stretchplayer-dbg_0.502_karmic_i386.deb

Debian Dsc:  http://www.teuton.org/~gabriel/stretchplayer/stretchplayer_0.502.dsc

Git:         http://gitorious.org/stretchplayer
              git://gitorious.org/stretchplayer/stretchplayer.git

USING THE PROGRAM
-----------------

After stretchplayer is installed, there should be an [S] icon under
Multimedia or Sound.  Or, you can run it from the command line like
this:

     $ stretchplayer

The GUI is pretty self-explanatory, and if you hover over the controls
a tool-tip should appear.  The GUI also has several keyboard
accelerators.

To play a file, click the file-open icon and select an audio file.
Stretchplayer can play anything that libsndfile supports (ogg, flac,
wav, etc.).  However, it does /not/ support MP3 files at this time.

As the file plays, slide the horizontal slider left or right to change
the speed of the song.  If you wish to transpose the audio, push one
of the + or - buttons.

INSTALLING THE PROGRAM
----------------------

You will need at least a 1200 MHz processor[1] to use this program.
It also requires the following libraries:

     * Qt >= 4.4      http://qt.nokia.com
     * librubberband  http://www.breakfastquay.com/rubberband/
     * libsndfile     http://www.mega-nerd.com/libsndfile/
     * JACK           http://jackaudio.org/
     * CMake          http://www.cmake.org/

If you are running Ubuntu Karmic or Ubuntu Jaunty, you can install the
.deb packages like this (from the command line):

     $ sudo dpkg -i stretchplayer*_0.502_karmic_i386.deb

Anyone else will need to build from source.  Please read the
INSTALL.txt file that comes with the taarball.

Peace,
Gabriel M. Beddingfield
2010-07-11

[1] With this release, Stretchplayer works OK (but not great) with an
     800MHz Celeron processor.  Before this release, it was unusable
     on this system.


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