Audio Decoder and method using this combination of reduction of audio channels (downmixing) efficient

摘要

A method, an apparatus, a computer readable Storage Medium configured with instructions to carry out a method, and Logic encoded in one or more tangible machine-readable media, to carry out actions. Method to decode the audio information that includes N. n channels in M.N audio channels Decoded,This includes the metadata and unpack unpack and decode Information Mantissa and exponent of Frequency Domain coefficients; the determination of transformation from the Decoded Information unpacked and Exponent and Mantissa of frequency domain The inverse of the Information Processing; Frequency Domain; and in the case m n,The combination of reducing audio channels, where the combination of reducing audio channels is carried out efficiently.