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  • Comparative Studies. Non-European Languages/Literatures  (3)
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  • Comparative Studies. Non-European Languages/Literatures  (3)
RVK
  • 1
    Online Resource
    Online Resource
    Auditory pitch influenced dramatically by dynamic intensity change
    Acoustical Society of America (ASA) ; 1997
    In:  The Journal of the Acoustical Society of America Vol. 101, No. 5_Supplement ( 1997-05-01), p. 3169-3169
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 101, No. 5_Supplement ( 1997-05-01), p. 3169-3169
    Abstract: Historically, auditory pitch is considered to be principally a function of acoustic frequency with only a small effect due to absolute intensity. Yet, when tones are Doppler shifted, the pitch dramatically rises and falls with dynamic intensity. This study uses a matching procedure to document the magnitude of pitch drop of dynamic Doppler stimuli. Listeners heard Doppler-shifted tones with a mean frequency of either 1046 or 175 Hz, a total fall of 2 semitones, and an intensity change of 58 to 86 dB and back to 58 dB. They compared this drop to a pair of 75-dB, 0.25-s discrete tones that dropped in frequency by intervals ranging from 0 to 24 semitones. The average match between experienced sizes of Doppler and discrete pitch change occurred at a discrete drop of 8 semitones, four times larger than the actual Doppler frequency change. This effect opposes and is an order of magnitude larger than the well known effect due to discrete intensity change. It is proposed that the interaction between dynamic pitch and loudness reflects a natural correlation between changes in frequency and intensity that is neurally encoded to facilitate processing of meaningful acoustic patterns.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.419129
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1997
    detail.hit.zdb_id: 1461063-2
    Location Call Number Limitation Availability
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    Online Resource
  • 2
    Online Resource
    Online Resource
    The interaction of pitch and loudness in dynamic stimuli: Beyond the Doppler illusion
    Acoustical Society of America (ASA) ; 1997
    In:  The Journal of the Acoustical Society of America Vol. 101, No. 5_Supplement ( 1997-05-01), p. 3169-3169
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 101, No. 5_Supplement ( 1997-05-01), p. 3169-3169
    Abstract: Listeners tend to experience rising pitch even though frequency falls as a sound source approaches. The phenomenon, called the Doppler illusion [J. G. Neuhoff and M. K. McBeath, J. Exp. Psychol. Hum. Percept. Perform. 22, 970–985 (1996)], shows that dynamic intensity change influences perceived pitch in a way that is qualitatively different from discrete static intensity change. Two new studies show a dynamic influence of intensity change on perceived pitch and a dynamic influence of frequency change on perceived loudness. Listeners were presented with square wave tones of either rising, falling, or constant intensity that either rose, fell, or remained constant in frequency for 6 s. Listeners responded in real time to either changes in pitch or loudness by moving a response wheel. It was found that dynamic intensity sweeps contribute to the perception of dynamic pitch change in the direction of the intensity sweep. In addition, dynamic frequency sweeps contribute to the perception of perceived loudness change in the direction of the frequency sweep. The results imply that pitch and loudness perception interact under dynamic conditions in a way that cannot be predicted by perceptual models derived from the presentation of discrete static tones.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.419130
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1997
    detail.hit.zdb_id: 1461063-2
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    Finding the missing fundamental: A connectionist model of harmonic detection
    Acoustical Society of America (ASA) ; 1999
    In:  The Journal of the Acoustical Society of America Vol. 106, No. 4_Supplement ( 1999-10-01), p. 2266-2266
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 106, No. 4_Supplement ( 1999-10-01), p. 2266-2266
    Abstract: A major shortcoming of the place-coding principle of pitch perception has been that it does not account for the phenomenon of virtual pitch, or the missing fundamental, because there is no physical energy on the basilar membrane at the location corresponding to the fundamental frequency. A connectionist model provides an example of a simple mechanism for virtual pitch that is consistent with place-coded input. An autoassociator network was trained using place-coded amplitudes of harmonics that corresponded to tones produced by a variety of musical instruments. After training, the network exhibited the missing fundamental illusion. Specifically, activation was present in the output unit corresponding to the fundamental frequency, even when the input energy at the fundamental was removed. This activation was approximately an order of magnitude larger than the activation of other units receiving no input energy, and it was the same order of magnitude as the activation when the fundamental frequency was present. The model demonstrates how virtual pitch can result from learned associations between harmonics that typically occur simultaneously in nature. When one of the harmonics is missing, the network simply fills in the missing part of the pattern.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.427736
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1999
    detail.hit.zdb_id: 1461063-2
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
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