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Audio format developed by the Nippon Telegraph and Telephone Corporation (NNT Labs); uses transform-domain weighted interleaved vector quantization to compress audio data; can be encoded in 80, 96, 112, 128, 160, and 192 kbps bitrates.

Is a recording format, designed for use in movie theaters. Who is a direct competitor of Dolby Digital. It is used to accompany the film with the movie, as well as on optical video discs. It supports two modes of audio: 5.1 and 7.1, allows full bit rate in high end home theaters.