noun
pulse-code modulation; PCM
Technical term in telecommunications for digitally representing sampled analog signals.
音声信号はパルス符号変調でデジタル化される。
The audio signal is digitized using pulse-code modulation.
Compound of パルス (pulse), 符号 (code), and 変調 (modulation), directly translating the English term 'pulse-code modulation'.