Precision Measurements of Equal-loudness Contours
Precision Measurements of Equal-loudness Contours
批准号:
01550346
负责人:
KUMAGAI Masazumi
金额:
$0.32万
依托单位国家:
日本
项目类别:
Grant-in-Aid for General Scientific Research (C)
财政年份:
1989
资助国家:
日本
项目状态:
已结题
起止时间:
1989 至 1990
中文摘要
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英文摘要
A large anechoic room at Electro-technical Laboratory was used for experiments in order to get new equal-loudness contours and minimum audible field (MAF). The frequency ranges were 31.5 Hz to 12.5 kHz for 20 phon, 31.5Hz to 8 KHz for 40 phon and 63 Hz to 8 kHz for 70 phon equal-loudness contour, and31.5 Hz to 16 kHz for MAF.The results obtained are summarized as follows ;(1) The values of equal-loudness level below 1 kHz are higher than those of ISO 226. The maximum difference amounts to 15 dB.(2) The MAF curve obtained is almost identical with that of ISO 226 except that out curve shows 3 to 4 dB higher in the frequency range below 160 Hz and 2 to 3 dB lower in the range above 400 Hz.(3) A small peak is observed in the region between 1 to 2 kHz both on low level equal-loudness contours and MAF curve. This peak has not been observed in the datas of either ISO 226 or of other previous studies. THe origin of this peak is attributed to the effects of head-related transfer function.
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鈴木 陽一,曽根 敏夫,竹島 久志,熊谷 正純,三浦 甫: "等ラウドネスレベル曲線の見直しについて" 日本音響学会誌. 46. 420-426 (1990)
Yoichi Suzuki、Toshio Sone、Hisashi Takeshima、Masazumi Kumagai 和 Hajime Miura:“等响度曲线综述”日本声学学会杂志 46. 420-426 (1990)。
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T.Sone,Y.Suzuki,H.Takeshima,M.Kumagai,T.Fujimori,H.Kado,H.Miura: "New data on equalーloudness level contours for pure tones and threshold of hearing in a free field" Proc.of InterーNoise 90. 2. 1155-1158 (1990)
T.Sone,Y.Suzuki,H.Takeshima,M.Kumagai,T.Fujimori,H.Kado,H.Miura:“关于纯音和自由场听力阈值等响度轮廓的新数据”Proc . 内部噪声 90. 2. 1155-1158 (1990)
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Y. Suzuki, T. Sone, H. Takesima, M. Kumagai, H. Miura: "On the re-examination of the equal-loudness level contours." Journal of Acoustical Society of Japan. Vol. 43. 420 (1990)
Y. Suzuki、T. Sone、H. Takesima、M. Kumagai、H. Miura:“关于等响度级别轮廓的重新检查”。
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T.Sone: "A new data of equalーloudness level contours for pure tones and threshold of hearing in a free field." Proc.of InterーNoise 90. (1990)
T.Sone:“Inter-Noise 90 中纯音的等响度轮廓和听力阈值的新数据。”
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通讯作者:
T.Sone,Y,Suzuki,H.Takeshima M.Kumagai,T.Fujimori H.Kado,H.Miura: "New data on equalーloudness level contours for pure tones and threshold of hearing in a free field" Proc.of InterーNoise 90. 2. 1155-1158 (1990)
T.Sone,Y,Suzuki,H.Takeshima M.Kumagai,T.Fujimori H.Kado,H.Miura:“纯音等响度水平轮廓和自由场听力阈值的新数据”Proc.of Inter -噪音 90.2.1155-1158 (1990)
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共 9 条
Improvement of speech articulation in a noisy environment by wearing earplugs
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批准号:15560046
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.79万
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财政年份:2003
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负责人:KUMAGAI Masazumi
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依托单位:
Precision Measurements of Equal-loudness Level Contours
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批准号:03555089
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项目类别:Grant-in-Aid for Developmental Scientific Research (B)
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资助金额:$1.86万
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财政年份:1991
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负责人:KUMAGAI Masazumi
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依托单位: