Journal of the Society of Motion Picture Engineers ( Volume: 18, Issue: 2, February 1932)
[ACTIVE]
Vertical Sound Records : Recent Fundamental Advances in Mechanical Records on Wax
Metadata
- Publisher
- SMPTE — White Plains, NY, USA
- Doc Type
- Journal Article
- Content Type
- Original Research
- Abbreviated Title
- J SMPE
- Volume
- 18, No. 2, pp. 141–163
- Abstract
- This paper describes recent progress which has been made in laboratory studies of mechanical records of sound cut on a wax disk. Both theoretical and experimental investigations indicate that a phonograph record, cut with vertical undulations instead of the more usual lateral undulations possesses fundamental advantages. The principal improvement comes from a marked increase in the volume and frequency range over which faithful reproduction may be obtained. A higher volume level can be recorded for the same groove spacing and speed. More playing time can be provided with a given size of record and volume level since, for these conditions, both the groove spacing and speed may be reduced. Improvements in methods of processing the stampers and in the record material give a large reduction in surface noise and hence a corresponding increase in the volume range. With these improvements the frequency range which can be reproduced satisfactorily can be extended nearly an octave to 8000 to 10,000 cycles. Other improvements incidental to the improvements noted above are great improvement in the quality of reproduction obtainable directly from a soft “wax” record and a great extension in the life of the hard record.
- Publication Date
- 1932-02-01
- DOI
10.5594/J05554- ISSN
- Print:
0097-5834 - Link
- https://doi.org/10.5594/J05554
- Author(s)
- H. A. FrederickBell Telephone Laboratories, New York, N. Y.
- Copyright
- © 1932 Society of Motion Picture and Television Engineers, Inc.
Bibliographic Reference(s)
- A Moving Coil Microphone for High Quality Sound Reproduction [Active]
- Recent Advances in Wax Recording [Active]
- 2 Fletcher H. : “Speech and Hearing,” D. Van Nostrand Co., Inc. , New York, N. Y. ( 1929 ). EXTERNAL
- 3 Güntherschulze A. : “Cathode Sputtering,” Zeit. f. Phys. , 36 (Jan.-May, 1926 ), p. 563 . EXTERNAL
- 4 Maxfield J. P. Harrison H. C. : “High Quality Recording and Reproducing of Music and Speech,” Trans. A.I. E. E. , 45 (Feb., 1926 ), p. 334 . EXTERNAL
- 5 Bostwick L. G. : “An Efficient Loud Speaker at the Higher Audible Frequencies,” J. Acoustical Soc. of Amer. , 2 (Oct. 1930 ), No. 2 , p. 242 . EXTERNAL
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H. A. Frederick; Vertical Sound Records : Recent Fundamental Advances in Mechanical Records on Wax, Journal of the Society of Motion Picture Engineers ( Volume: 18, Issue: 2, February 1932); SMPTE, 1932. Available at https://doi.org/10.5594/J05554
Snippet:
H. A. Frederick; Vertical Sound Records : Recent Fundamental Advances in Mechanical Records on Wax, Journal of the Society of Motion Picture Engineers ( Volume: 18, Issue: 2, February 1932); SMPTE, 1932. Available at https://doi.org/10.5594/J05554
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H. A. Frederick; Vertical Sound Records : Recent Fundamental Advances in Mechanical Records on Wax, Journal of the Society of Motion Picture Engineers ( Volume: 18, Issue: 2, February 1932); SMPTE, 1932. Available at https://doi.org/10.5594/J05554
Snippet:
<span class="citation">H. A. Frederick; <cite>Vertical Sound Records : Recent Fundamental Advances in Mechanical Records on Wax</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 18, Issue: 2, February 1932); SMPTE, 1932. Available at <a href="https://doi.org/10.5594/J05554" target="_blank" rel="noopener">https://doi.org/10.5594/J05554</a></span>
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H. A. Frederick; Vertical Sound Records : Recent Fundamental Advances in Mechanical Records on Wax, Journal of the Society of Motion Picture Engineers ( Volume: 18, Issue: 2, February 1932); SMPTE, 1932
doi: 10.5594/J05554
url: https://doi.org/10.5594/J05554
doi: 10.5594/J05554
url: https://doi.org/10.5594/J05554
Snippet:
<li> H. A. Frederick; <cite id="bib-10-5594-j05554">Vertical Sound Records : Recent Fundamental Advances in Mechanical Records on Wax</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 18, Issue: 2, February 1932); SMPTE, 1932 <span class="doi">10.5594/J05554</span> </li>