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  • 1
    Online Resource
    Online Resource
    Analysis of speech sounds transduced by different types and positions of sensors
    Acoustical Society of America (ASA) ; 1983
    In:  The Journal of the Acoustical Society of America Vol. 73, No. S1 ( 1983-05-01), p. S86-S86
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 73, No. S1 ( 1983-05-01), p. S86-S86
    Abstract: In this paper, we present the results of our analysis of different classes of speech sounds, which we recorded from different types of sensors located at each of a number of positions in the vicinity of the talker. The sensor types we used include pressure microphone, first-order pressure-gradient microphone, second-order pressure-gradient microphone, and accelerometer (for measuring vibrations on the surfaces of head and neck). For measuring the pressure gradients, we constructed an array of three closely spaced electret microphones; in addition, we used a prototype first-order gradient microphone and a prototype second-order gradient microphone. A specially chosen set of speech utterances was recorded from three male and two female subjects. We considered both short-term and long-term amplitude and spectral characteristics of speech in our comparative investigation of the various sensor signals. Differences in the output of various sensors were especially noticeable for nasals and voiced obstruents for which the source of sound radiation is significantly away from the lips. [Work sponsored by Air Force Systems Command, Rome Air Development Center.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.2020604
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1983
    detail.hit.zdb_id: 1461063-2
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  • 2
    Online Resource
    Online Resource
    Revisiting stop-consonant perception for two-formant stimuli
    Acoustical Society of America (ASA) ; 1984
    In:  The Journal of the Acoustical Society of America Vol. 75, No. S1 ( 1984-05-01), p. S66-S66
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 75, No. S1 ( 1984-05-01), p. S66-S66
    Abstract: The aim of this study was to re-examine the factors leading to stop consonant perception for consonant-vowel stimuli with just two formants over a range of vowels, using stimuli and test procedures somewhat different from those used in earlier studies. Five two-formant CV stimulus continua were synthesized, each covering a range of second-formant (F2) starting frequencies, for vowels corresponding roughly to [iiæɑu]. Listeners identified the beginning of the syllable under two different instructions: a forced-choice response of b, d, or g, and an open response set. The stimuli with the most unanimous responses were those with substantial F2 transitions, i.e., [bi bɪ du] . There were few consistent g responses. Under open response instructions, stimuli with straight or small transition ranges were identified as beginning with no consonant. The results are compared with those of other studies, particularly with regard to differences in stimulus characteristics, and are discussed in relation to theories of invariance. [Supported in part by grants from NIH.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.2021549
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1984
    detail.hit.zdb_id: 1461063-2
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  • 3
    Online Resource
    Online Resource
    Effect of burst amplitude on the perception of place of articulation for stops
    Acoustical Society of America (ASA) ; 1981
    In:  The Journal of the Acoustical Society of America Vol. 70, No. S1 ( 1981-11-01), p. S33-S33
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 70, No. S1 ( 1981-11-01), p. S33-S33
    Abstract: We have examined the effects of the relative amplitude of the burst on perception of the labial and alveolar place of articulation for voiceless and voiced stop consonants. The amplitude of the burst, i.e., the first 10–15 msec following consonant release, was systematically varied in 5-dB steps from −10 to +10 dB relative to a “normal” burst amplitude for two bilabial-to-alveolar synthetic speech continua—one for voiceless stops and the other for voiced stops. The distribution of spectral energy in the burst for the bilabial and alveolar stops at the ends of the continuum were consistent with the shapes observed in natural utterances of these stops, and intermediate spectrum shapes were used for intermediate stimuli on the continuum. The results showed that the relative amplitude of the burst, even for the same spectrum shape, significantly affected the perception of place of articulation for both voiceless and voiced stops, but the effect was greater for the former than the latter. The results suggest that for an alveolar consonant to be heard, the high-frequency spectral amplitude immediately following the consonant release must be equal to or greater than the spectral amplitude at the onset of the following vowel in the same frequency range, and the spectral amplitude at onset for low frequencies must be sufficiently low. [Work supported in part by NINCDS.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.2018830
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1981
    detail.hit.zdb_id: 1461063-2
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  • 4
    Online Resource
    Online Resource
    Effect of burst amplitude on the perception of stop consonant place of articulation
    Acoustical Society of America (ASA) ; 1983
    In:  The Journal of the Acoustical Society of America Vol. 74, No. 3 ( 1983-09-01), p. 706-714
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 74, No. 3 ( 1983-09-01), p. 706-714
    Abstract: We have examined the effects of the relative amplitude of the release burst on perception of the place of articulation of utterance-initial voiceless and voiced stop consonants. The amplitude of the burst, which occurs within the first 10–15 ms following consonant release, was systematically varied in 5-dB steps from −10 to +10 dB relative to a ‘‘normal’’ burst amplitude for two labial-to-alveolar synthetic speech continua—one comprising voiceless stops and the other, voiced stops. The distribution of spectral energy in the bursts for the labial and alveolar stops at the ends of the continuum was consistent with the spectrum shapes observed in natural utterances, and intermediate shapes were used for intermediate stimuli on the continuum. The results of identification tests with these stimuli showed that the relative amplitude of the burst significantly affected the perception of the place of articulation of both voiceless and voiced stops, but the effect was greater for the former than the latter. The results are consistent with a view that two basic properties contribute to the labial–alveolar distinction in English. One of these is determined by the time course of the change in amplitude in the high-frequency range (above 2500 Hz) in the few tens of ms following consonantal release, and the other is determined by the frequencies of spectral peaks associated with the second and third formants in relation to the first formant.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.389856
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 1983
    detail.hit.zdb_id: 1461063-2
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  • 5
    Online Resource
    Online Resource
    Glottal characteristics of children—acoustic measures and comparison with adults
    Acoustical Society of America (ASA) ; 2000
    In:  The Journal of the Acoustical Society of America Vol. 108, No. 5_Supplement ( 2000-11-01), p. 2531-2531
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 108, No. 5_Supplement ( 2000-11-01), p. 2531-2531
    Abstract: Previous studies of vowels produced by adult speakers showed substantial individual and gender differences in acoustic parameters related to glottal characteristics [H. M. Hanson, J. Acoust. Soc. Am. 101, 466–481 (1997); H. M. Hanson and E. S. Chuang, ibid. 106, 1064–1077 (1999)]. The current study extends the earlier work to children. In pilot work, data produced by seven children (five male, two female, ages 5-8) showing no signs of speech or voice disorders were analyzed. Acoustic measures related to first-formant bandwidth, open quotient, and spectral tilt were made on the vowel /ε/ extracted from the word ‘‘red.’’ These preliminary data show, for example, that the average measure of spectral tilt (dB difference between amplitudes of first harmonic and third-formant prominence) for the children is about 14 dB greater than for adult females and about 24 dB greater than for adult males. The results suggest that, like adults, children display substantial individual differences in vocal-fold configuration. Data for additional subjects and vowels will be analyzed, and we will make measures related to aspiration noise. Mean data for children and adults will be compared and interpretation in terms of acoustic models will be proposed. [Work supported by NIH Grant DC03744.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.4743370
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2000
    detail.hit.zdb_id: 1461063-2
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  • 6
    Online Resource
    Online Resource
    Understanding Female and Male Voices on the Telephone
    American Speech Language Hearing Association ; 1992
    In:  American Journal of Audiology Vol. 1, No. 4 ( 1992-11), p. 17-18
    Details
    In: American Journal of Audiology, American Speech Language Hearing Association, Vol. 1, No. 4 ( 1992-11), p. 17-18
    Type of Medium: Online Resource
    ISSN: 1059-0889 , 1558-9137
    URL: Article
    DOI: 10.1044/1059-0889.0104.17
    Language: English
    Publisher: American Speech Language Hearing Association
    Publication Date: 1992
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  • 7
    Online Resource
    Online Resource
    Response to Revit
    American Speech Language Hearing Association ; 1993
    In:  American Journal of Audiology Vol. 2, No. 3 ( 1993-11)
    Details
    In: American Journal of Audiology, American Speech Language Hearing Association, Vol. 2, No. 3 ( 1993-11)
    Type of Medium: Online Resource
    ISSN: 1059-0889 , 1558-9137
    URL: Article
    DOI: 10.1044/1059-0889.0203.68c
    Language: English
    Publisher: American Speech Language Hearing Association
    Publication Date: 1993
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  • 8
    Online Resource
    Online Resource
    Noise and Man, Volume II of Handbook on Acoustic Noise Control
    Ovid Technologies (Wolters Kluwer Health) ; 1959
    In:  Journal of Occupational and Environmental Medicine Vol. 1, No. 1 ( 1959-01), p. 75-
    Details
    In: Journal of Occupational and Environmental Medicine, Ovid Technologies (Wolters Kluwer Health), Vol. 1, No. 1 ( 1959-01), p. 75-
    Type of Medium: Online Resource
    ISSN: 1076-2752
    URL: Article
    DOI: 10.1097/00043764-195901000-00073
    Language: English
    Publisher: Ovid Technologies (Wolters Kluwer Health)
    Publication Date: 1959
    detail.hit.zdb_id: 2070230-9
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  • 9
    Online Resource
    Online Resource
    Physics of Laryngeal Behavior and Larynx Modes
    Walter de Gruyter GmbH ; 1977
    In:  Phonetica Vol. 34, No. 4 ( 1977-07-01), p. 264-279
    Details
    In: Phonetica, Walter de Gruyter GmbH, Vol. 34, No. 4 ( 1977-07-01), p. 264-279
    Type of Medium: Online Resource
    ISSN: 1423-0321 , 0031-8388
    URL: Article
    DOI: 10.1159/000259885
    RVK:
    EQ 1000
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 1977
    detail.hit.zdb_id: 1483552-6
    SSG: 7,11
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  • 10
    Online Resource
    Online Resource
    Spectral prominences and phonetic distinctions in language
    Elsevier BV ; 1985
    In:  Speech Communication Vol. 4, No. 1-3 ( 1985-8), p. 137-144
    Details
    In: Speech Communication, Elsevier BV, Vol. 4, No. 1-3 ( 1985-8), p. 137-144
    Type of Medium: Online Resource
    ISSN: 0167-6393
    URL: Article
    DOI: 10.1016/0167-6393(85)90041-X
    Language: English
    Publisher: Elsevier BV
    Publication Date: 1985
    detail.hit.zdb_id: 625711-2
    detail.hit.zdb_id: 1460279-9
    SSG: 7,11
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