ATRAC

ATRAC (Adaptive TRansform Acoustic Coding) is an audio compression algorithm used to store information on Minidiscs and other Sony-branded audio players. First developed by Sony in 1991; the higher mincompression flavors of ATRAC3 and ATRAC3plus followed in 2000 and 2003, respectively. It uses quadrature mirror filters and modified discrete cosine transform to represent encoded audio.

This article is a stub. You can help the Hydrogenaudio Knowledgebase by expanding it.