Quantization bit number allocation by first selecting a subband signal having a maximum of signal to mask ratios in an input signal

摘要: As a selected subband signal, is one of frequency band signals an input signal that has maximal to mask ratio. The assigned, as primary provisional bit number, with quantization number allocatable thereto. A noise ratio the calculated. Other are assigned temporary numbers incremented by from zero secondary ratios other meanwhile calculated each time when one. allocated individually exceed Some may be equal zero. sum and compared total signals. If does not total, exceeds uniformly reduced allocated, unless negative, Zero used instead at least negative.