Audio encoding method with function of accelerating a quantization iterative loop process

摘要: An audio encoding method previously estimates better initial iterative values of global-gain and scalefactor for avoiding heavy calculation. The estimating process the includes calculating bit allocation one frequency sample based on a sampling rate, number channels according to an input frame, psychoacoustic model, searching having greatest energy in each plurality bands, quantizing comply with generate corresponding scalefactor, maximum all bands setting scalefactors value quantization loop scalefactor.