Sapir S, McClean M D, Luschei E S
J Acoust Soc Am. 1983 Mar;73(3):1070-3. doi: 10.1121/1.389135.
The sensitivity of audio-laryngeal reflex pathways to sinusoidal changes in the fundamental frequency of complex auditory tones (AF0) was assessed indirectly in three young adult human subjects. The subjects sustained phonation at constant voice fundamental frequency (VF0) and voice intensity while listening to a sawtooth tone whose AF0 varied over time in a sinusoidal fashion (rates = 5-13 Hz). The subjects phonated at a low voice intensity so that the intensity of the auditory tone (80-85 dB SL) completely masked their voice. Using computer signal averaging and Fourier analysis techniques it was found that the sinusoidally modulated AF0 induced similar modulations in the VF0 signal. The VF0 modulations were extremely small in amplitude and showed large phase shifts relative to the auditory input. These findings are discussed in relation to the role of auditory feedback in phonatory control.
在三名年轻成年受试者中，间接评估了声喉反射通路对复合听觉音调基频（AF0）正弦变化的敏感性。受试者在恒定的语音基频（VF0）和语音强度下持续发声，同时聆听锯齿波音调，其AF0随时间呈正弦方式变化（频率 = 5 - 13 Hz）。受试者以低声强发声，以使听觉音调的强度（80 - 85 dB SL）完全掩盖其声音。使用计算机信号平均和傅里叶分析技术发现，正弦调制的AF0在VF0信号中引起了类似的调制。VF0调制的幅度极小，并且相对于听觉输入显示出较大的相移。结合听觉反馈在发声控制中的作用对这些发现进行了讨论。
