周しゅう波は数すうスペクトルMeanings1nounfrequency spectrumcomputingTechnical term in signal processing and computing; refers to the representation of a signal in the frequency domain.この装そう置ちは音おん声せいの周しゅう波は数すうスペクトルをリアルタイムで表ひょう示じします。This device displays the frequency spectrum of the audio in real time.