METHOD AND APPARATUS FOR DETERMINING ENCODING RATE IN VARIABLE RATE VOCODER

摘要

PROBLEM TO BE SOLVED: To provide a method and apparatus for determining an encoding rate in a variable rate vocoder.SOLUTION: The apparatus includes: a subband energy calculating means 4, 6 for receiving an input signal and calculating a plurality of subband energy values according to a predetermined subband energy calculation format; and an encoding rate determining means 16 for receiving the plurality of subband energy values and selecting or determining an encoding rate according to the plurality of subband energy values.