Spatial Parameter Choosing Method Based on Spatial Perception Entropy Judgment

With stereo audio steping into people´s daily lives, spatial parametric technology comes to its broad prospects for development. Spatial parameteric technology is a method for stereo compression. This paper proposes a spatial parameter selection method based on spatial perception entropy judgment. And it gives a new Spatial Perception Entropy method and principle, and build the SPE codec framework in MDCT-domain, improving quality and reducing complexity in the spatial audio information. The method can optimize spatial parameter selection and realize high-efficiency spatial audio codec.