Hartmann W M, Klein M A
J Acoust Soc Am. 1980 Mar;67(3):935-46. doi: 10.1121/1.383972.
There is general agreement that the frequency difference limen measured in a two-sine-tone frequency discrimination experiment is smaller than that measured in a frequency modulation (FM) experiment. We present a model of frequency modulation detection for low modulation frequencies, within the framework of signal detection theory, which accounts well for the observed difference between frequency discrimination experiments and FM detection experiments. The FM detection model also predicts psychometric functions for detection of FM with different modulation waveforms. FM detection experiments with square, sine, trapezoid, and triangle FM are in reasonable agreement with the model predictions.
人们普遍认为，在双正弦音调频率辨别实验中测得的频率差阈限小于在频率调制（FM）实验中测得的频率差阈限。我们在信号检测理论的框架内提出了一个针对低调制频率的频率调制检测模型，该模型很好地解释了频率辨别实验和FM检测实验之间观察到的差异。FM检测模型还预测了不同调制波形下FM检测的心理测量函数。使用方波、正弦波、梯形波和三角波FM进行的FM检测实验与模型预测结果合理相符。
