Interaction synchrony among interlocutors happens naturally as people adapt their speaking style gradually to promote efficient communication. In this work, we quantify one aspect of interaction synchrony - prosodic entrainment, specifically pitch and energy, in married couples' problem-solving interactions using speech signal-derived measures. Statistical testings demonstrate that some of these measures capture useful information; they show higher values in interactions with couple having high positive attitude compared to high negative attitude. Further, by using quantized entrainment measures employed with statistical symbol sequence matching in a maximum likelihood framework, we obtained 76% accuracy in predicting positive affect vs. negative affect.
Bibliographic reference. Lee, Chi-Chun / Black, Matthew / Katsamanis, Athanasios / Lammert, Adam C. / Baucom, Brian R. / Christensen, Andrew / Georgiou, Panayiotis G. / Narayanan, Shrikanth S. (2010): "Quantification of prosodic entrainment in affective spontaneous spoken interactions of married couples", In INTERSPEECH-2010, 793-796.