Effects of deviation from isochronism on the durational shrinkage by noise replacement

スポンサーリンク

概要

• 論文の詳細を見る

• The duration of sounds generally tends to be perceived as shorter when a portion is replaced by a noise burst. However, a reversal/prolongation tendency can occur if a compelling isochronous context is functioning. To test the robustness of the durational shrinkage as well as to investigate what aspect is the core feature providing the isochronism, three experiments are conducted using (1) a non-isochronous sequence of four tones, (2) a four-tone sequence whose interonset intervals fluctuate randomly, and (3) a four-tone sequence whose interonset intervals are fixed to be isochronous irrespective of adjustment by human participants in the experiment. In most cases, the noise replacement causes the perceived duration of the target tone to shrink compared to that of its intact counterpart. Furthermore, the reduction of isochronous context results in the reduction of the reversal tendency, although the shrinking effect cannot be observed clearly either. The effects of noise replacement and context are discussed in relation to the contribution of local cues provided by the perceptual evidence as well as the contribution of a global cue provided by an isochronous interonset interval.

• 社団法人日本音響学会の論文

著者

• Tsuzaki Minoru

  Kyoto City University Of Arts

• Kato Hiroaki

  ATR Spoken Language Translation Research Laboratories

関連論文

• A Model of Event Detection for Perceptual Extraction of the Temporal Structures of Speech (国際ワークショップ Frontiers in Speech and Hearing Research)
• Durational shrinkage by noise replacement in quasi-isochronous and hyper-isochronous contexts
• Effects of deviation from isochronism on the durational shrinkage by noise replacement
• Independence of mental representations for tonotopic and periodic scales in perceptual judgment of vowel-like sounds

スポンサーリンク