OSA's Digital Library

Applied Optics

Applied Optics


  • Vol. 22, Iss. 24 — Dec. 15, 1983
  • pp: 4020–4027

Coherent-optic suppression of scratch noise on optical sound records

M. E. Zhabotinski, A. A. Lapides, and A. I. Shpuntov  »View Author Affiliations

Applied Optics, Vol. 22, Issue 24, pp. 4020-4027 (1983)

View Full Text Article

Enhanced HTML    Acrobat PDF (1422 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



A method of coherent spatial filtering of optical sound records is proposed. Theoretical analysis shows that these methods provide suppression of scratch images and of worn sound track noise by 10–14 dB, i.e., to the level of a new sound record. It is shown that linear processing of a corrected image is inefficient, and only its nonlinear processing leads to an improved SNR. Three methods of realizing nonlinear transformation are suggested. Results of the experiment are in good agreement with theory.

© 1983 Optical Society of America

Original Manuscript: December 8, 1982
Published: December 15, 1983

M. E. Zhabotinski, A. A. Lapides, and A. I. Shpuntov, "Coherent-optic suppression of scratch noise on optical sound records," Appl. Opt. 22, 4020-4027 (1983)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. C. W. Helstrom, J. Opt. Soc. Am. 57, 297 (1967). [CrossRef]
  2. D. G. Falconer, Appl. OPt. 5, 1365 (1966). [CrossRef] [PubMed]
  3. P. L. Jackson, Appl. Opt. 4, 419 (1965). [CrossRef]
  4. M. B. Dobrin, A. L. Ingalls, I. A. Long, Geophysics 30, 1144 (1965). [CrossRef]
  5. A. VanderLugt, Opt. Acta 15, 1 (1968).
  6. L. R. Rabiner, B. Gold, Theory and Application of Digitial Signal Processing (Prentice-Hall, Englewood Cliffs, N.J., 1975).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited