The effects pitch-distorbed feedback on vocal productions
Jeffrey L. Elman · The Journal of the Acoustical Society of America · 1980
Previous investigations into the effects of distorted auditory feedback on vocalizations have been limited to manipulations of intensity, background noise, or delay in arrival time. The current study reports the results of real-time distortions of the frequency components of auditory feedback. Subjectively, such distortion is perceived primarily as an alteration in the fundamental frequency of the speech. Subjects performed a variety of tasks under conditions where they received either normal auditory feedback (NAF) or pitch-altered feedback (PAF). NAF performance was consistently good; PAF performance was quite poor. Subjects attempted to compensate for the frequency alterations by adjusting their fundamental frequency up or down such that the resulting feedback appeared to be “normal.” [Work supported by NSF.]