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01 ·Audio Codecs·★ MEMBER·PAPER·12 min read Neural Audio Codecs — EnCodec and the Foundation Under Speech LLMs MP3 and Opus were hand-designed around what the ear cannot hear. Neural audio codecs learn the coding itself and turn sound into a finite alphabet of integers. From vector quantization to residual VQ, EnCodec's bitrate arithmetic, and why VALL-E and AudioLM are built on top of it — starting from zero.