Equipment and methods for processing audio scenes using parametric smoothing

Abstract

The invention relates to a device and method for processing sound scenes using parametric smoothing. The sound scene processing device (130) represents the sound field, the sound scene (130) includes information about the transmitted signal (122) and the first set of parameters (112). The device includes a parametric processor (110) to process the second set of parameters (112) to obtain the second set of parameters (114). where the parameter processor (110) is configured to compute at least one raw parameter (252) for each output timeframe (220) using at least one parameter of the first set of parameters (112) for the input timeframe (210), to compute smoothing information (512; 522) such as coefficients for each raw parameter (252) according to the smoothing rule, and to apply smoothing information (512; 522) corresponds to the raw parameter (252) corresponding to the inference of the second set of parameters (114) for the output time frame (220). In addition, the device also includes an output interface (120) to create a processed sound scene (124) using the second set of parameters (114) and information about the transmitted signal (122).