Patent ID: 8483411
Filing Date: 2013-07-09
Classification: G10L,H04S

Abstract:
1. A method of processing a signal, comprising: decoding a low-frequency band downmix signal by using at least one of a speech coding scheme and an audio coding scheme; reconstructing a high-frequency band downmix signal by using the low-frequency band downmix signal; generating a downmix signal by adding the low-frequency band downmix signal and the high-frequency band downmix signal, the downmix signal generated by downmixing a plural-channel signal in an encoder; receiving mix information and phase shift information on the plural-channel signal; upmixing the downmix signal to the plural-channel signal by applying the mix information to the downmix signal; and generating an original plural-channel signal by shifting a phase of at least one channel of the plural-channel signal by a same phase for a whole frequency band, based on the phase shift information.