1. |
REVERBERATION TIME MEASUREMENTS IN COUPLED ROOMS |
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The Journal of the Acoustical Society of America,
Volume 3,
Issue 2A,
1931,
Page 181-206
Carl F. Eyring,
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ISSN:0001-4966
DOI:10.1121/1.1915555
出版商:Acoustical Society of America
年代:1931
数据来源: AIP
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2. |
A PLANETARY REDUCTION GEAR SYSTEM FOR RECORDING TURNTABLES |
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The Journal of the Acoustical Society of America,
Volume 3,
Issue 2A,
1931,
Page 207-221
A. V. Bedford,
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PDF (930KB)
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ISSN:0001-4966
DOI:10.1121/1.1915556
出版商:Acoustical Society of America
年代:1931
数据来源: AIP
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3. |
PLANE SOUND WAVES OF FINITE AMPLITUDE |
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The Journal of the Acoustical Society of America,
Volume 3,
Issue 2A,
1931,
Page 222-241
R. D. Fay,
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摘要:
The principal object of the analysis is to find the change in type of periodic plane waves of sound of finite amplitude propagated in free air.A solution of the exact equation of motion is obtained as a Fourier series. Due to the nonlinear relation between pressure and specific volume there is found to be a gradual transfer of energy from components of lower frequency to those of higher frequency. Since the effect of viscosity is to attenuate the higher frequency components more than the lower, there is always a wave form having the harmonic components in a stable relation such that the decrease in relative magnitude of any component due to viscosity is compensated by the relative increase due to nonlinearity. The conditions for stability vary with intensity. There is therefore no permanent wave form, but the stable wave will change its form more gradually than any other wave of the same intensity and wave length. The change in type of any wave is toward this stable form. There is a marked departure from the sinusoidal in the stable type even for waves of very moderate amplitude.
ISSN:0001-4966
DOI:10.1121/1.1915557
出版商:Acoustical Society of America
年代:1931
数据来源: AIP
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4. |
ORGAN PIPES |
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The Journal of the Acoustical Society of America,
Volume 3,
Issue 2A,
1931,
Page 242-262
Leslie N. Leet,
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ISSN:0001-4966
DOI:10.1121/1.1915558
出版商:Acoustical Society of America
年代:1931
数据来源: AIP
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5. |
THEORY OF SUPERSONIC INTERFEROMETERS |
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The Journal of the Acoustical Society of America,
Volume 3,
Issue 2A,
1931,
Page 263-268
W. D. Hershberger,
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PDF (281KB)
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摘要:
The theory of the supersonic interferometer is developed by deriving an expression for the impedance of the mechanical system to which the instrument may be reduced. The impedance is found to be a function of the crystal constants, frequency, length of fluid column, acoustic resistance of the medium, and sound absorption in it. The principal features of the behavior of the device are thereby explained and its possible usefulness in the measurement of sound absorption coefficients pointed out.
ISSN:0001-4966
DOI:10.1121/1.1915559
出版商:Acoustical Society of America
年代:1931
数据来源: AIP
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6. |
ACOUSTIC INSULATION AND THE CANCELLATION EFFECT AT THE BASILAR MEMBRANE |
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The Journal of the Acoustical Society of America,
Volume 3,
Issue 2A,
1931,
Page 269-274
A. G. Pohlman,
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ISSN:0001-4966
DOI:10.1121/1.1915560
出版商:Acoustical Society of America
年代:1931
数据来源: AIP
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7. |
DIFFERENTIAL PITCH SENSITIVITY OF THE EAR |
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The Journal of the Acoustical Society of America,
Volume 3,
Issue 2A,
1931,
Page 275-287
E. G. Shower,
R. Biddulph,
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PDF (738KB)
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ISSN:0001-4966
DOI:10.1121/1.1915561
出版商:Acoustical Society of America
年代:1931
数据来源: AIP
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8. |
REGULATING THE ACOUSTICS OF LARGE ROOMS |
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The Journal of the Acoustical Society of America,
Volume 3,
Issue 2A,
1931,
Page 288-291
Ernst Petzold,
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PDF (248KB)
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ISSN:0001-4966
DOI:10.1121/1.1915562
出版商:Acoustical Society of America
年代:1931
数据来源: AIP
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9. |
MINIMIZING DISCREPANCIES OF INTONATION IN VALVE INSTRUMENTS |
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The Journal of the Acoustical Society of America,
Volume 3,
Issue 2A,
1931,
Page 292-296
John Redfield,
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PDF (343KB)
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ISSN:0001-4966
DOI:10.1121/1.1915563
出版商:Acoustical Society of America
年代:1931
数据来源: AIP
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10. |
FURTHER STUDIES OF THE STRIKE NOTE OF BELLS |
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The Journal of the Acoustical Society of America,
Volume 3,
Issue 2A,
1931,
Page 297-307
Arthur Taber Jones,
George W. Alderman,
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PDF (803KB)
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ISSN:0001-4966
DOI:10.1121/1.1915564
出版商:Acoustical Society of America
年代:1931
数据来源: AIP
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