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Vorbis + Speex; Is It Possible?
Musafir_86
post Jun 29 2005, 15:07
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Dear all,

-Is it possible to unite Vorbis and Speex 'technology' together? I mean could the developers do this in future release (1.1.2 or 2.0)? WMA had already do this (WMA VBR, Lossless, Speech, etc) and have only one stream ID (if I'm not mistaken). huh.gif

-If this could happen, we will benefit from reduced codec 'numbers' installed in our system, broader support/coverage for Vorbis, and Vorbis also can use Speex tuning in speech for movies/films/toons when the characters are talking (isn't it called speech too?). biggrin.gif

-Also, why don't Vorbis drops the bitrate down to ZERO (0kbps) when there is PLAIN SILENT in the audio stream (such as when the characters are just staring at each other - in anime mostly)? Anybody know why? unsure.gif

Thanks, bye.

Regards,
-Musafir_86.
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maikmerten
post Jun 29 2005, 16:36
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QUOTE (Musafir_86 @ Jun 29 2005, 02:07 PM)
-Is it possible to unite Vorbis and Speex 'technology' together? I mean could the developers do this in future release (1.1.2 or 2.0)? WMA had already do this (WMA VBR, Lossless, Speech, etc) and have only one stream ID (if I'm not mistaken). huh.gif


No, those technologies are completely different and can't be integrated. Plus it's impossible to properly seperate voice and music to process each different.

All those WMA flavours (Pro, Lossless, etc.) are completely seperate codecs. It's just marketing to call them all "Windows Media Audio".

QUOTE (Musafir_86 @ Jun 29 2005, 02:07 PM)
-Also, why don't Vorbis drops the bitrate down to ZERO (0kbps) when there is PLAIN SILENT in the audio stream (such as when the characters are just staring at each other - in anime mostly)? Anybody know why? unsure.gif
*


Vorbis lowers the bitrate to ~3-5 kbps during perfect digital silence (lower isn't possible as you still need some timing, framing and syncing information). If it doesn't drop that low it's not perfect silence.
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