(n,vs) (1) change of tone
variation (music)
irregularity
anomaly
abnormality
(2) modulation (in radio)
(n) modulator
(n) wave modulation
(n) PM
phase modulation
(n) frequency modulation
FM
(n) amplitude modulation
AM
(n) (comp) modulator
(n) (comp) modulation rate
(n) (comp) modulation method
(n) pulse modulation
PM
(n) frequency modulation
FM
(n) pulse width modulation
(n) (comp) phase modulation recording
phase encoding
(n) (comp) PM
Phase Modulation
(n) (comp) RZ
Return-to-Zero
(n) (comp) Quadrature Amplitude Modulation
QAM
(n) (comp) Pulse-Code Modulation
PCM
(n) (comp) frequency modulation recording
FM recording
(n) (comp) Frequency Modulation
(n) (comp) Adaptive Delta Modulation
(n) (comp) orthogonal frequency division multiplexing
(n) (comp) modified frequency modulation recording
MFM recording