Файл: Audio and Radio Engineering.pdf

5-42 Sound Reproduction Devices and Systems

•

Provide a light weight assembly

As shown in Figure 5.3.18, most shapes of the support system are corrugated, but linearity is
improved and the maximum allowable range is increased.

Figure 5.3.16

 Sectional views of various diaphragm shapes: (

a) diaphragm of the cone type

extends to the reproducing band by changing the shape of the curved surface, (

b) diaphragm of

the plane type removes the cavity effect by using a flat radiation surface, (

c) diaphragm of the

dome type improves bending elasticity by forming thin plates into a domelike shape.

Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)

Copyright © 2004 The McGraw-Hill Companies. All rights reserved.

Any use is subject to the Terms of Use as given at the website.

Dynamic-Type Direct-Radiation Speakers

Dynamic-Type Direct-Radiation Speakers 5-43

Figure 5.3.17

 Sectional views of cone suspension systems: (

a) the thinned edge of a diaphragm

fulfills the function of the cone suspension, (

b) material different from that of a diaphragm is used

to fulfill the function of cone suspension, (

c) exceptional cone suspensions.

Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)

Copyright © 2004 The McGraw-Hill Companies. All rights reserved.

Any use is subject to the Terms of Use as given at the website.

Dynamic-Type Direct-Radiation Speakers

5-44 Sound Reproduction Devices and Systems

5.3.3

Bibliography

Allison, R., et at.: “On the Magnitude and Audibility of FM Distortion in Loudspeakers,” J.

Audio Eng Soc., vol. 30, no. 10, pg. 694, 1982.

Beranek, L. L.: Acoustics, McGraw-Hill, New York, N.Y., pg. 183, 1954.

Hirata, Y.: “Study of Nonlinear Distortion in Audio Instruments,” J. Audio Eng. Soc., vol. 29, no.

9, pg. 607, 1981.

Kinsler, L. E., et al: Fundamentals of Acoustics, Wiley, New York, N.Y., pg. 363, 1982.

Figure 5.3.18

 Various shapes of centering systems.

Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)

Copyright © 2004 The McGraw-Hill Companies. All rights reserved.

Any use is subject to the Terms of Use as given at the website.

Dynamic-Type Direct-Radiation Speakers

Dynamic-Type Direct-Radiation Speakers 5-45

Melillo, L., et al.: “Ferrolluids as a Means of Controlling Woofer Design Parameters,” presented

at the 63d Convention of the Audio Engineering Society, vol. 1, pg. 177, 1979.

Niguchi, H., et al.: “Reinforced Olefin Polymer Diaphragm for Loudspeakers,” J. Audio Eng.

Soc., vol. 29, no. 11, pg. 808, l981.

Okahara, M., et al: Audio Handbook, Ohm Sya, pg. 285, 1978 (in Japanese).

Olson, H. F.: Elements of Acoustical Engineering, Van Nostrand, Princeton, N.J., pg. 123, 1957.

Sakamoto, N.: Loudspeaker and Loudspeaker Systems, Nikkan Kogyo Shinbunshya, pg. 36,

1967 (in Japanese).

Sakamotoet, N., et. al.: “Loudspeaker with Honeycomb Disk Diaphragm,” J. Audio Eng. Soc.,

vol. 29, no. 10, pg. 711, 1981.

Shindo, T., et al: “Effect of Voice-Coil and Surround on Vibration and Sound Pressure Response

of Loudspeaker Cones,” J. Audio Eng. Soc., vol. 28, no 7–8, pg. 490, 1980.

Suwa, H., et al.: “Heat Pipe Cooling Enables Loudspeakers to Handle Higher Power,” presented

at the 63d Convention of the Audio Engineering Society, vol. 1, pg. 213, 1979.

Suzuki, H., et al.: “Radiation and Diffraction Effects by Convex and Concave Domes,” J. Audio

Eng Soc., vol. 29, no. 12, pg. 873, 1981.

Takahashi, S., et al.: “Glass-Fiber and Graphite-Flake Reinforced Polyimide Composite Dia-

phragm for Loudspeakers,” J. Audio Eng. Soc., vol. 31, no. 10, pg. 723, 1983.

Tsuchiya, H., et al.: “Reducing Harmonic Distortion in Loudspeakers,” presented at the 63d

Convention of the Audio Engineering Society, vol. 2, pg. 1, 1979.

Yamamoto, T., et al.: “High-Fidelity Loudspeakers with Boronized Titanium Diaphragm,” J.

Audio Eng. Soc., vol. 28, no. 12, pg. 868, 1980.

Yoshihisa, N., et al.: “Nonlinear Distortion in Cone Loudspeakers,” Chuyu-Ou Univ. Rep., vol.

23, pg. 271, 1980.

Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)

Copyright © 2004 The McGraw-Hill Companies. All rights reserved.

Any use is subject to the Terms of Use as given at the website.

Dynamic-Type Direct-Radiation Speakers

Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com)

Copyright © 2004 The McGraw-Hill Companies. All rights reserved.

Any use is subject to the Terms of Use as given at the website.

Dynamic-Type Direct-Radiation Speakers