M. Friend et Mj. Farrar, A COMPARISON OF CONTENT-MASKING PROCEDURES FOR OBTAINING JUDGMENTS OFDISCRETE AFFECTIVE STATES, The Journal of the Acoustical Society of America, 96(3), 1994, pp. 1283-1290
The purpose of this article is to investigate observers' use of acoust
ic cues to arrive at judgments of the speaker's affective state and to
address current methodological limitations. Ninety-nine female underg
raduates rated the level of excitement, happiness, and anger of speech
stimuli under three content-masking procedures: low-pass filtering, r
andom splicing, and reiterant speech. Each procedure preserves some fo
rms of acoustic information while disrupting or degrading others. As p
redicted, the content-masking procedures generated bias in observers'
affective ratings. Results are discussed in terms of the efficacy of t
he content-masking procedures and implications for the study of acoust
ic cues to speaker affect.