Improving an audio signal of an FM Stereo radio receiver by using parametric stereo

摘要

A method for improving a signal left / right or mid / side audio provided by a radio receiver stereo frequency modulation (FM), the method comprising: - receiving the signal center right / left side audio / or receptor FM stereo radio; - generating a first audio signal based on the signal left / right or mid / side audio by downmixing operation; - determining one or more parametric stereo parameters based on the signal left / right or mid / side audio variably frequency or frequency invariable manner; and - generating a stereo signal based on the first audio signal and the one or more parametric stereo parameters.