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当重复频率为250,500或1000赫的重复短声信号的时程短于T时,重复短声的音调辨别閾△f_r与信号时程t的平方根成反比,即△f_r=C(T/t)~(1/2).当信号时程长于T时,重复短声的音调辨别閾即恒定在最低的水平,即△f_r=C.T是信息积累的极限时间,较为恒定,约为140毫秒.C为音调辨别閾的最低水平,其大小随受试者的不同及重复短声重复频率的不同而变化.
When the duration of the repetitive short signal having the repetition frequency of 250, 500 or 1000 Hz is shorter than T, the pitch of the repeated short tone discriminating Δf_r is inversely proportional to the square root of the signal duration t, that is, f_r = C (T / t) ~ (1/2). When the signal duration is longer than T, the tone of the repeated short tone discrimination threshold is constant at the lowest level, ie △ f_r = CT is the limit time for information accumulation, is relatively constant, about 140 milliseconds. Is the lowest level of the pitch discrimination threshold, and its size varies with the subject and the repetition frequency of the short-sounding.