1. |
The Absorption of Sound in Gases |
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The Journal of the Acoustical Society of America,
Volume 6,
Issue 4,
1935,
Page 199-204
Vern O. Knudsen,
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ISSN:0001-4966
DOI:10.1121/1.1915738
出版商:Acoustical Society of America
年代:1935
数据来源: AIP
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2. |
The Electrical Phenomena of the Cochlea and the Auditory Nerve |
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The Journal of the Acoustical Society of America,
Volume 6,
Issue 4,
1935,
Page 205-215
Hallowell Davis,
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ISSN:0001-4966
DOI:10.1121/1.1915739
出版商:Acoustical Society of America
年代:1935
数据来源: AIP
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3. |
A Loudness Scale for Industrial Noise Measurements |
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The Journal of the Acoustical Society of America,
Volume 6,
Issue 4,
1935,
Page 216-225
B. G. Churcher,
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PDF (1400KB)
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摘要:
Both on technical grounds and from experience in industrial noise measurements, it is recognized that the decibel scale, used as a loudness scale, does not yield numerical values proportional to the loudness sensation. In many spheres of work this occasions great inconvenience and there is need for an agreed rule for converting the decibel observations of practical noise measurements into loudness values on a linear loudness scale. A survey has therefore been made of published data with a view to deducing the most probable law for the relation between stimulus and sensation for a 1000‐cycle pure tone. Relations derived from mental estimates of loudness, from data on monaural‐binaural listening and from data on the properties of tone combinations are discussed. The evidence indicates that not only does the nerve‐impulse theory of audition provide an explanation of the faculty of making mental estimates of relative loudness and of the monaural‐binaural listening phenomena, but that stimulus‐sensation relations deduced by the two methods are in substantial quantitative agreement. On theoretical grounds it is not thought that tone combination data are admissible for this purpose and an important divergence between these and monaural‐binaural data appears to exist. Consequently the suggested relation put forward is not felt to be the most probable law. For the final relation derived in the present paper from the available data, the number 100 is assigned to the loudness evoked by an intensity of 100 db above 0.0002 dyne per sq. cm reference pressure. For practical industrial noise measurements, the relation is expressed sufficiently nearly by a simple power law between the limits of 30 and 115 db. Over this range, the loudness (L) is given byL = d5×10−8, wheredis the number of decibels above reference pressure. In addition to its being more in conformity with introspective judgments of relative loudness, this simple rule is thought to be preferable to the suggested curve because it is easily remembered, accurately definable and easily used with the aid of a slide rule.
ISSN:0001-4966
DOI:10.1121/1.1915740
出版商:Acoustical Society of America
年代:1935
数据来源: AIP
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4. |
Subharmonics in Forced Oscillations in Dissipative Systems. Part I |
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The Journal of the Acoustical Society of America,
Volume 6,
Issue 4,
1935,
Page 227-238
P. O. Pedersen,
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ISSN:0001-4966
DOI:10.1121/1.1915741
出版商:Acoustical Society of America
年代:1935
数据来源: AIP
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5. |
What is Measured in Sound Absorption Measurements |
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The Journal of the Acoustical Society of America,
Volume 6,
Issue 4,
1935,
Page 239-245
Paul E. Sabine,
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ISSN:0001-4966
DOI:10.1121/1.1915742
出版商:Acoustical Society of America
年代:1935
数据来源: AIP
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6. |
The Motion of a Bar Vibrating in Flexures, Including the Effects of Rotary and Lateral Inertia |
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The Journal of the Acoustical Society of America,
Volume 6,
Issue 4,
1935,
Page 246-249
W. P. Mason,
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PDF (315KB)
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摘要:
In this paper a complete theoretical solution is given for a bar vibrating in flexure taking account of rotary and lateral inertia. The solution shows that the frequency of a bar free to vibrate on both ends, is asymptotic to the frequency given by the usual solution, neglecting rotary inertia, when the ratio of width to length is small, and approaches the frequency of a bar in longitudinal vibration when the width becomes comparable to the length. The theoretical frequencies have been compared with the published results of Harrison on the frequency of a quartz crystal vibrating in flexure, and have been found to agree within one percent for a crystal whose width is less than half its length.
ISSN:0001-4966
DOI:10.1121/1.1915743
出版商:Acoustical Society of America
年代:1935
数据来源: AIP
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7. |
Performance of Telephone Receivers as Affected by the Ear |
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The Journal of the Acoustical Society of America,
Volume 6,
Issue 4,
1935,
Page 250-254
Harry F. Olson,
Frank Massa,
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摘要:
An analysis is made of the impedance characteristic of the ear when coupled to a telephone receiver by means of an ear cap which introduces an acoustic leak at the junction. A vibrating system is also described which causes constant sound pressure to be generated in the ear cavity under such conditions. Experimental data as obtained on an artificial ear are given showing the effect of the acoustic leak on the response of various types of receivers. Subjective tests are also described and data given which corroborate the data obtained on the artificial ear.
ISSN:0001-4966
DOI:10.1121/1.1915744
出版商:Acoustical Society of America
年代:1935
数据来源: AIP
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8. |
Quantitative Studies on the Singing Voice |
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The Journal of the Acoustical Society of America,
Volume 6,
Issue 4,
1935,
Page 255-266
S. K. Wolf,
D. Stanley,
W. J. Sette,
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PDF (1280KB)
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ISSN:0001-4966
DOI:10.1121/1.1915745
出版商:Acoustical Society of America
年代:1935
数据来源: AIP
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9. |
Experimental Studies on the Sound and Vibration of Drum |
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The Journal of the Acoustical Society of America,
Volume 6,
Issue 4,
1935,
Page 267-273
Jûichi Obata,
Takehiko Tesima,
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ISSN:0001-4966
DOI:10.1121/1.1915746
出版商:Acoustical Society of America
年代:1935
数据来源: AIP
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10. |
Sound Waves of Finite Amplitude in an Exponential Horn |
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The Journal of the Acoustical Society of America,
Volume 6,
Issue 4,
1935,
Page 275-278
S. Goldstein,
N. W. McLachlan,
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PDF (383KB)
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ISSN:0001-4966
DOI:10.1121/1.1915747
出版商:Acoustical Society of America
年代:1935
数据来源: AIP
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