Analysis of Temporal Changes in Prosodic Features of Positive and Negative Emotions in Spontaneous Speech
Yuki Aoki, Mitsunori Mizumachi, Taishi Yamaoka · 2023
Analysis of emotional speech often uses acting speech, which is easy to collect. Problems that arise when analyz-ing spontaneous speech include the inability to specify the utterance content and emotion during recording, the label-ing of emotions by different evaluators, and the difficulty of collecting speech data. In this study, we analyzed spon-taneous speech considering the problems in spontaneous speech data collection. We were able to confirm that the three spontaneous speeches where speech content cannot be unified unlike the acting speech of “positive”, “negative” and “neutral” differ in the feature values of voice power, fundamental frequency, and speech speed.