Patent ID: 8260445

Claim:
A signal processing system, comprising: a first converter configured to convert first information into second information; a superimposer configured to superimpose, on the second information, control information corresponding to a missing information that is lost from the first information due to conversion by the first converter; a transmitter configured to transmit the second information; a receiver configured to receive the second information transmitted from the transmitter; an extractor configured to extract the control information from the second information; a second converter configured to convert the second information into third information based on the control information extracted by the extractor; and an output portion configured to output the third information, wherein the first converter is configured to decode a coded audio signal as the first information and to convert the coded audio signal into a multi channel linear audio signal as the second information, the superimposer is configured to superimpose, on the multi channel linear audio signal, control information to control a low frequency enhancement (LFE) signal reproduction level of the multi channel linear audio signal based on the coded audio signal, and the second converter is configured to adjust the LFE signal reproduction level in the multi channel linear audio signal based on the control information and to convert the multi channel linear audio signal into the third information.