周しゅう波は数すう変へん調ちょう記き録ろくMeaningsNoun1. frequency modulation recording; FM recordingKanji used周circumference波a wave数number変change調tone記regularly record録record on somethingComposed of周しゅう波は数すうfrequency (esp. of waveforms)Noun変へん調ちょうirregularity; abnormality; anomaly; change of tone; transposition; modulationNoun記き録ろくrecord; document; minutes; log; recording; putting on record; keeping a record (of); writing down; record (e.g. in sports); setting (a record); …Noun