Method for restoring an audio signal using a multi-channel decoder HE-AAC and MPEG surround decoder

摘要

Method for decoding Moving Picture Experts Group MPEG surround, high quality to generate audio signals of multiple channels using a bit stream side information and downmix signals of at least one of a complex domain filter mirror quadrature QMF, and a time domain, comprising the steps of: performing an analysis QMF downmix signals time domain; applying a delay introduced in a conversion of real to complex of an MPEG surround low power output signals emitted from the step of performing an analysis QMF and downmix signals complex QMF domain; and an analysis Nyquist output signals from the step of applying the delay and residual signals input QMF.