| 释义 |
sonogram 声纳图 In communications security, a threedimensional graphic representation of a sound signal. The two axes represent time and frequency, whereas the amplitude is indicated by gray scale of the graph (i.e, black indicates high amplitude, white low amplitude). 通信保密中,一种声音信号的三维图形表示,两个轴表示时间和频率,用图的灰度来表示振幅(即黑色表示高振幅,白色表示低振幅)。 |