期刊文献+

兴奋模式下谐波复合音音高感知机制的研究

Pitch perception of harmonic complex tones based on excitation patterns
下载PDF
导出
摘要 通过测量谐波复合音的基频辨别阈,探讨中等"高次谐波"的音高感知是否依赖于谐波的可分离性,以及掩蔽音对实验结果的影响。实验方法:在目标音单独存在或目标音与掩蔽音混合时,将刺激通过高、中、低三个带通滤波器以获得不同的谐波可分离度。实验刺激设计为5种基频差异和4种相位组合。五名被试均为年轻人,纯音听阈≤15 dB HL。研究结果发现:谐波复合音的基频辨别阈随着信号频段的上移而增大;目标音和掩蔽音的基频差异对基频辨别阈有显著影响;但相位影响不显著。结论:谐波的可分离性对基频辨别阈有显著影响,但中等"高次谐波"的音高感知不依赖于可分离性;混合音的大部分音高感知结果与兴奋模式的峰值大小密切相关。 Fundamental frequency difference limens were measured to study whether pitch perception of medium- rank harmonic complex tones depends on the resolvability of the components and to study the effects of masker tone on discrimination performance. Target tone was presented alone, or mixed with the masker, which were filtered into the same bandpass frequency region (low, medium, or high) to obtain different resolvability. There were five kinds of fundamental frequency difference and four kinds of phase combination between target and masker. Five young subjects participated in experiments, all of whom had normal hearing (thresholds ~〈15 dB HL). Results found fundamental frequency difference limens were increased with up-shift frequency region of the harmonics. The fundamental frequency difference between target and masker had a significant impact on the performance, while phase effects were small. Analysis suggested that the resolvability of harmonics had a significant impact on the fundamental frequency difference limens, but pitch perception of medium-rank harmonics was not based on the resolvability. Analysis also suggested that most results of pitch perception of target-masker mixture were closely correlated with peaks on the excitation patterns.
出处 《声学学报》 EI CSCD 北大核心 2013年第1期99-104,共6页 Acta Acustica
基金 国家自然科学基金(30800234) 广东省自然科学基金(10151805702000000) 广东省教育部产学研结合项目(2011B090400315)资助项目
  • 相关文献

参考文献8

  • 1Moore B C J, Gockel H. Resolvability of components in complex tones and implications for theories of pitch pet'- ception. Hearing Research, 2011; 276(1-2): 88 -97.
  • 2Moore B C J, Glasberg B R, Flanagan H J ct al. h'equency discrimination of complex tones; assessing tile role of com- ponent resolvability and temporal fine structure. Jourr~al of the Acoustical Society of AmeT"ica, 2006; 119(1): 480.
  • 3Houtsma A J M, Smurzynski J. Pitch identification and discrimination for complex tones with many harmonics. Journal of the Acoustical Society of America, 1990; 87(1): 304 -310.
  • 4Moore B C J, Glasberg B R. Suggested formulae for calcu- lating auditory-filter bandwidths and excitation patterns. Journal of the Acoustical Society of America, 1983; 74(3): 750 -753.
  • 5Bernstein J G, Oxenham A J. Harmonic segregation through mistuning can improve fundamental frequency dis- crimination. Jour'nal of the Acoustical Society of America, 2008; 124(3): 1653-1667.
  • 6Micheyl C. Bernstein J G, Oxenham A J. Detection and F0 discrimination of harmonic complex tones in the pres- ence of competing tones or noise..Iourrml of the Aco,zstical Society of America, 2006; 120(3): 1493- 1505.
  • 7Micheyl C, Keebler M V, Oxenham A J. Pitch perception for mixtures of spectrally overlapping harmonic complex tones. Journal of the Acoustical Society of America, 2010; 128(1): 257- 269.
  • 8Moore B C J, Huss M, Vickers D Aet al. A test for the diagnosis of dead regions in the cochlea. British Journal of Audiology, 2000; 34(4): 205 -224.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部