MULTIMEDIA PROCESSING APPARATUS, METHOD, AND NON-TRANSITORY TANGIBLE COMPUTER READABLE MEDIUM THEREOF

摘要

A multimedia processing apparatus, method, and non-transitory tangible computer readable medium thereof are provided. The multimedia processing apparatus of the present invention includes an interface and a processing unit. The interface receives an audio stream continuously, wherein the audio stream is defined with a time line. The processing unit performs the following operations every a predetermined time interval: (a) deciding a first portion of the audio stream with reference to a time instant of the time line, (b) calculating an energy of the first portion of the audio stream, and (c) calculating a difference between the energy and a previous energy. The processing unit decides a plurality of second portions of the audio stream and decides a beat point for each of the second portions by selecting the time instant that corresponds to the maximum difference within the second portion.

主权项

1. A multimedia processing apparatus, comprising:
an interface, being configured to receive an audio stream continuously, wherein the audio stream is defined with a time line; and a processing unit, being electrically connected to the interface and configured to perform the following operations every a first predetermined time interval: (a) deciding a first portion of the audio stream with reference to a time instant of the time line, (b) calculating an energy of the first portion of the audio stream, and (c) calculating a difference between the energy and a previous energy; wherein the time instants for deciding the first portions of the audio stream are different and the processing unit is further configured to decide a plurality of second portions of the audio stream and decide a beat point for each of the second portions by selecting the time instant that corresponds to the maximum difference within the second portion.