single channel

形容词 single channel:

1. designating sound transmission or recording or reproduction over a single channel
   同义词：mono, monophonic, single-channel

1. In recording, pertaining to sound reproduction using a single output signal or made with a single channel audio tape recorder.
   在录音技术中，用于修饰或说明单一输出信号复制声音或用单声道复制声音。