The influence of different timbre attributes on the perceptual segregation of complex-tone sequences
The influence of different timbre attributes on the perceptual segregation of complex-tone sequences
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DOI：
10.1121/1.419688
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发表时间：
1997-10-01
影响因子：
2.4
通讯作者：
Bregman, AS
中科院分区：
文献类型：
--
作者：
Singh, PG;Bregman, AS
频谱因素，如谐波含量的差异是强有力的线索，在感知组织的音调序列。然而，诸如上升时间的时间特征已被证明是较差的线索[W. M. Hartmann和D.约翰逊，Mus. Perc. 9，155-184（1991）]。这些音色特征对知觉分离的相对影响进行了研究。复音在重复阿坝-“奔马”格式中被排序，在四种条件下，其中音调A和B具有相同或不同的音色，由谐波数量和时间包络特征的差异来定义。以相同F0的A和B音调开始的序列。然后，A和B之间的F0差在试验的过程中增加，直到收听者终止试验，指示感知分离为分别包括A和B音调的子序列。达到这个分离的交叉点所需的F0差异提供了一个衡量A和B的刺激特征作为知觉组织线索的功效的指标。序列结合谐波结构和时间包络的差异需要最小的F0变化隔离。具有相同谐波结构和时间包络的音调序列需要较大的F0变化，而其他条件落在这个范围的中间。在这项研究中使用的F0跟踪方法便于测量不同的刺激功能流隔离的相对贡献。它也有潜力作为一种工具，使用分离点作为衡量不同物理特征的声音所带来的音色差异的大小。(C)1997年美国声学学会。[S 0001 -4966（97）03309-2]PACS编号：43.10.Ln、43.75.Cd、43.66.Jh、43.66.Lj、43.66.Mk [WJS]。
Spectral factors such as differences in harmonic content are powerful cues in the perceptual organization of tone sequences. Temporal features such as rise time, however, have been shown to be poor cues [W. M. Hartmann and D. Johnson, Mus. Perc. 9, 155-184 (1991)]. The relative influence of these timbral features on perceptual segregation was investigated. Complex tones were sequenced in a repeating ABA-''gallop'' format, under four conditions in which tones A and B had the same or different timbres as defined by differences in numbers of harmonics and temporal-envelope features. A sequence started with A and B tones at the same F0. The F0 difference between A and B then increased over the course of a trial, until a listener terminated the trial indicating perceptual segregation into sub-sequences comprising A and B tones, respectively. The F0 difference required to reach this crossover point of segregation provided a measure of the efficacy of stimulus features of A and B as cues for perceptual organization. Sequences combining differences in harmonic structure and temporal envelope required the smallest F0 change for segregation. Sequences of tones with the same harmonic structure and temporal envelope required larger changes in F0, while the other conditions fell in the middle of this range. The F0-tracking method used in this study facilitates measurement of the relative contribution of different stimulus features to stream segregation. It also holds potential as a tool using the point of segregation as a measure of the magnitude of timbre differences brought about by different physical features of sounds. (C) 1997 Acoustical Society of America. [S0001-4966(97)03309-2]PACS numbers: 43.10.Ln, 43.75.Cd, 43.66.Jh, 43.66.Lj, 43.66.Mk [WJS].