略語大辞典 [C] 24 PCM pulse code modulation パルス コード変調. パルス符号変調. アナログ信号をディジタル信号に変換して行う変調方式.pulse code modulation; representation of an analog signal, such as speech, by sampling at a regular rate and converting each sample to a binary number; conventional DS-0 provides for the sampling of each v 丸善「略語大辞典」JLogosID : 11855103