人工複合音の音色と温冷覚との感覚間協応

抄録

This study aimed to explore the acoustic parameters of artificially generated sounds associated with thermal sensations and to examine the possibility that the temperature associated with the sounds is judged from timbral impressions. Specifically, an experiment was conducted to investigate the perceived temperature and timbral impressions of complex artificial sounds that varied in harmonic structure, harmonic amplitude, and temporal envelope. The results showed that participants most strongly associated sounds with low harmonic density and non-decaying frequency envelopes with coldness. This finding suggests the presence of statistical correspondences based on acoustic features reminiscent of metallic sounds. In contrast, the results suggest that it is unlikely that the associated temperature is judged based on timbral impressions. Therefore, the temperature associated with artificial complex sounds is more likely influenced by statistical correspondences grounded in multimodal experiential regularities, rather than by semantic or affective correspondences based on timbral impressions.