Patent ID: 8363842
Filing Date: 2013-01-29
Classification: G10L,H04S

Abstract:
1. A playback method for decode-processing and playing back coded audio data which is transmitted with necessary stereo process information required for a stereo process intermittently multiplexed into coded information of a monaural audio signal, the playback method comprising: monitoring a state of the necessary stereo process information; outputting stereo audio signals using the monaural audio signal with a delay, if the necessary stereo process information is not supplied; starting updating stereo variables within filters, and outputting the stereo audio signals using the monaural audio signal until all the state variables are updated, if the necessary stereo process information is supplied for the first time from a state in which the necessary stereo process information is not supplied; and performing the stereo process based on stereo process information acquired by the necessary stereo process information, on the monaural audio signal to generate and output stereo audio signals, after all the state variables within the filters are updated.