switched quantizer

A quantizer that provides adaptive quantization in DPCM by tracking the input waveform and appropriately switching among two or more fixed quantizers.; 在差分脉码调制(DPCM)中进行自适应量化的一种量化器,它通过跟踪输入波形并相应地在两个 或两个以上的固定量化器之间进行切换来进行自适应量化。