Hi everybody:
It's time for another weekly update from the Xiph.org team. The plain
text version is below, and the HTML version will appear on vorbis.com
later today.
Enjoy!
<p>Ogg Traffic for Tuesday, March 18, 2003
[1]Carsten "Purple" Haese
March 18, 2003
_________________________________________________________________
Table of Contents
1. Editorial
1.1. It's Ogg, not OGG!
2. Status Updates
2.1. Monty
2.2. Michael Smith, Brendan Cully, Karl Heyes
2.3. Jean-Marc Valin
2.4. Stan Seibert
3. Interesting Discussions
3.1. Vorbis Decoder from Scratch
4. Recent Developments
4.1. Asterisk PBX supports Speex
4.2. Speex heading for the RFC Track
4.3. WinAmp needs You!
[2]Previous Issues of Ogg Traffic
1. Editorial
1.1. It's Ogg, not OGG!
With an ever-increasing adoption of Ogg Vorbis, I'm seeing an
increasing number of new users refer to it as OGG. This is a trend
that I would like to counter with this piece of authoritative
information: It's not OGG, it is Ogg! You may think that this is an
insignificant difference, but I don't think so. Please let me explain
why.
Writing OGG in a context where both uppercase and lowercase letters
are used implies that it is an acronym like our good old competitor
Em-Pee-Three. I haven't heard anybody try to pronounce OGG, but
I'm
willing to bet that there are people that are tempted to read it as an
acronym and hence pronounce it Oh-Gee-Gee, which is not right. The
format's name is Ogg. It is a word, not an acronym, and
it's
pronounced like Dog without the letter D. If you're not familiar with
the word or why it is a fitting name for an audio compression
algorithm, please see the OggSquish section on [3]this page.
If you respect Ogg Vorbis for the amazing piece of technology that it
is, please respect its creator, Monty, and call it by the name that he
chose for it, and spread the word: It's Ogg, not OGG!
Thanks for listening. We now return to our regular scheduled program.
2. Status Updates
2.1. Monty
Monty corrected some typos in the Vorbis decoder specification that
John Ripley found. He also committed more optimizations and
improvements to libogg2.
2.2. Michael Smith, Brendan Cully, Karl Heyes
The icecast/ices/libshout development team is still on a roll and is
committing patches like crazy. This week, we've seen lots of bugfixes,
code cleanups, and attempts to get a sane autotools system to work.
2.3. Jean-Marc Valin
In preparation for Speex 1.0, which is due to be released very soon,
Jean-Marc has made some documentation fixes and eliminated a few
compiler warnings.
2.4. Stan Seibert
Stan, author of the Positron sync manager for the [4]Neuros Digital
Audio Computer, has now received his demo unit, which allowed him to
get some hands-on experience with the Neuros and to gain intimate
knowledge of its software innards.
3. Interesting Discussions
3.1. Vorbis Decoder from Scratch
John Ripley informs us in [5]this message that he has succeeded in
implementing a Vorbis decoder from scratch, using almost exclusively
the pseudocode specifications, and only resorting to libvorbis code in
certain parts where the specifications contained too many typos to
produce a working implementation.
With this effort, John provided a valuable service to the Vorbis
community by validating large parts of the specification as correct,
and by pointing out where the specification contains errors that need
to be corrected. Having correct decoder specifications is essential
for a codec, and thanks to John's efforts, the Vorbis specs are that
much closer to being 100% correct.
4. Recent Developments
4.1. Asterisk PBX supports Speex
Ross Finlayson informs us in [6]this message that the software PBX
[7]Asterisk has recently accepted his patches to support dynamic
payload types, and as a consequence, Asterisk's SIP implementation now
supports Speex!
4.2. Speex heading for the RFC Track
Greg Herlein, main author of the Speex RTP profile draft [8]reports
in this message that he will present his draft for initial
consideration at the next meeting of the IETF's AV Working Group on
March 20th. We wish him the best of luck, and, as always, we'll keep
you informed of future developments.
4.3. WinAmp needs You!
Nullsoft, the makers of Winamp, have agreed to let Xiph.org work on
Ogg support in the new version of Winamp. Unfortunately, we're all
really busy, so we need help. If you think you are the right person
for the job, please don't hesitate and contact Emmett at
[9]emmett@xiph.org.
References
1. mailto:carsten@xiph.org
2. http://www.vorbis.com/ot/
3. http://www.xiph.org/xiphname.html
4. http://www.neurosaudio.com/
5. http://www.xiph.org/archives/vorbis-dev/200303/0016.html
6. http://www.xiph.org/archives/speex-dev/200303/0007.html
7. http://www.asterisk.org/
8. http://www.xiph.org/archives/speex-dev/200303/0006.html
9. mailto:emmett@xiph.org
--- >8 ----
List archives: http://www.xiph.org/archives/
Ogg project homepage: http://www.xiph.org/ogg/
To unsubscribe from this list, send a message to
'vorbis-request@xiph.org'
containing only the word 'unsubscribe' in the body. No subject is
needed.
Unsubscribe messages sent to the list will be ignored/filtered.
