An audio encoder performs adaptive entropy encoding of audio data. For example, an audio encoder switches between variable dimension vector Huffman coding of direct levels of quantized audio data and run-level coding of run lengths and levels of quantized audio data. The encoder can use, for example,...http://www.google.fr/patents/US7433824?utm_source=gb-gplus-shareBrevet US7433824 - Entropy coding by adapting coding between level and run-length/level modes
Entropy coding by adapting coding between level and run-length/level modes
