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Dolby Truehd




Dolby TrueHD, from Dolby Laboratories , is an advanced Lossless audio codec based on Meridian Lossless Packing . The codec is mandatory for HD-DVD and optional for Blu-ray Disc media. It supports 24 bit, 96 KHz audio channels at up to 18 Mbit/s over 8 channels (HD DVD and Blu-ray Disc standards currently limit their maximum number of audio channels to eight). It also supports extensive metadata, including dialog Normalization and Dynamic Range Control . TrueHD streams are supported in the High Definition Media Interface (HDMI) standard.