作者
Mathias Dietz, Stephan D Ewert, Volker Hohmann
发表日期
2009/3/1
期刊
The Journal of the Acoustical Society of America
卷号
125
期号
3
页码范围
1622-1635
出版商
Acoustical Society of America
简介
Psychoacoustic experiments were conducted to investigate the role and interaction of fine-structure and envelope-based interaural temporal disparities. A computational model for the lateralization of binaural stimuli, motivated by recent physiological findings, is suggested and evaluated against the psychoacoustic data. The model is based on the independent extraction of the interaural phase difference (IPD) from the stimulus fine-structure and envelope. Sinusoidally amplitude-modulated 1-kHz tones were used in the experiments. The lateralization from either carrier (fine-structure) or modulator (envelope) IPD was matched with an interaural level difference, revealing a nearly linear dependence for both IPD types up to 135°, independent of the modulation frequency. However, if a carrier IPD was traded with an opposed modulator IPD to produce a centered sound image, a carrier IPD of 45° required the largest …
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M Dietz, SD Ewert, V Hohmann - The Journal of the Acoustical Society of America, 2009