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Comments (8)

• tux3
  So, it looks like this tries to build a model (or rather, multiple layers of models combined with something called context mixing[0]), potentially analyzing the whole file first? Is it fair to call this a very fancy entropy coder, replacing the last phase of what a traditional audio codec does (the lossless part, after quantization)?I like the code style, this is pretty nice C. It's refreshing to see human code.[0]: https://en.wikipedia.org/wiki/Context_mixing
• merbanan
  Vorbis sends the entropy tables in the actual file at the start.https://www.xiph.org/vorbis/doc/Vorbis_I_spec.html#x1-470003If you have the complete file you can calculate the optimal ones. In a streaming scenario that does not work and you have use something you think is good.
• sinnet3000
  The git username sounded familiar, it's from the same developer that created bzip3.
• EdSchouten
  Interesting that it doesn’t use the same open source license as Vorbis/Opus itself. Otherwise improvements like these could be upstreamed?
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  BoingBoomTschak
  Those .blr extensions in the examples are making me doubt: the result is still conformant and playable ogg Vorbis/Opus, right?