Measurement method for spacial sensed information content in acoustic field and application thereof

The invention discloses a method for measuring spatial perception information content in a sound field and application thereof. The method uses spatial perception entropy (SPE) to represent the size of spatial information content which can be perceived in multi-channel audio signals, namely, the size of the spatial perception information content received by human ears in expressing double-ear audition. The SPE using a double-ear audition model as the basis represents the size of the spatial information content which can be perceived in the multi-channel audio signals, is the lower limit of a spatial audio code rate, and solves the problem that the perception entropy calculated by using a single-ear audition model as the basis cannot measure the spatial perception information content in the sound field.