The talentless hacks at Fraunhofer/Dolby have published a list of patents Opus infringes.
It's a list of 50 year old patents that keep getting necromanced by their resident necromancer just to extort money.
8595019 for example. It's a patent for an audio encoder, working in the frequency domain, using an overlap, supporting transients (many smaller transforms instead of a large one), encoded with a codebook.
Filed in 2011.
THIS DESCRIBES EVERY SINGLE LOSSY AUDIO CODEC EXCEPT OPUS, AND WAS ALREADY OBSOLETE BY 1995!
Opus doesn't use codebooks. It doesn't need codebooks. It has something like a codebook, but it's just a multidimensional vector index compressed into 32 bits, not an index into an array of quantization coefficients.
It's a list of 50 year old patents that keep getting necromanced by their resident necromancer just to extort money.
8595019 for example. It's a patent for an audio encoder, working in the frequency domain, using an overlap, supporting transients (many smaller transforms instead of a large one), encoded with a codebook.
Filed in 2011.
THIS DESCRIBES EVERY SINGLE LOSSY AUDIO CODEC EXCEPT OPUS, AND WAS ALREADY OBSOLETE BY 1995!
Opus doesn't use codebooks. It doesn't need codebooks. It has something like a codebook, but it's just a multidimensional vector index compressed into 32 bits, not an index into an array of quantization coefficients.
Patents are all bullshit. They belong on the internet as much as intellectual property laws do. Or pop-up ads. Or pop-up consent panels for ads. Or cookie banners. Or censorship. Or those 1-pixel large tracking dots. Or IPv4.
