[Etoys] Ogg Vorbis and Speex CODEC for Squeak eToys

Andreas Raab andreas.raab at gmx.de
Sun Mar 11 15:33:27 EDT 2007

Can you say a bit more about the Codec, like: What is the average 
compression ratio? Does it use a fixed or variable bit rate? How CPU 
intensive is compression/decompression?

   - Andreas

Takashi Yamamiya wrote:
> Hello,
> I have uploaded some change sets to the update stream (#1230, #1231)
> for Ogg Vorbis and Speex sound codec support. It allows you to
> compress sound data efficiently, and it would be easy to make tutorial
> project with voice guidance.
> - Recoding a voice with codec using Sound Recorder in parts bin.
> - Making a tile from the recoeded voice, and saving as a .pr file.
> - Playback .ogg / .spx music from File List.
> I will apply the Event Theatre soon.
> However, you need a plugin file to test this feature. Please download
> and try it.
> http://tinlizzie.org/olpc/OggPlugin/OggPlugin.linux.tgz
> for OLPC machine and linux.
> http://tinlizzie.org/olpc/OggPlugin/OggPlugin.win.zip
> for Windows
> http://tinlizzie.org/olpc/OggPlugin/OggPlugin.mac.zip
> for Mac OS X
> The mac plugin requires universal binary
> ftp://ftp.smalltalkconsulting.com/. Note that because this is my first
> time to build something on Macintosh, it is possible that something is
> completely bad. At least it worked on a MacBook though, please tell me
> if it doesn't work on your mac. And give me your advice!
> Source code is available at:
> http://tinlizzie.org/olpc/OggPlugin/ogg_plugin.tar.gz
> Thank you,
> - Takashi
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