Measurement of Recorded Level and Channel Separation on Phonograph Discs Using Optical Interferometry Techniques

Inoue T, Owaki I, Ohba K, Nakamura S, Eargle J. Measurement of Recorded Level and Channel Separation on Phonograph Discs Using Optical Interferometry Techniques. J Audio Eng Soc. 1974;22(9):704-705. Available from: https://aes.org/publications/elibrary-page/?id=2727

@article{Inoue1974_2727,
  author = {Inoue, T. and Owaki, I. and Ohba, K. and Nakamura, S. and Eargle, John},
  title = {{Measurement of Recorded Level and Channel Separation on Phonograph Discs Using Optical Interferometry Techniques}},
  journal = {Journal of the Audio Engineering Society},
  volume = {22},
  number = {9},
  pages = {704--705},
  year = {1974},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=2727}
}

TY  - JOUR
TI  - Measurement of Recorded Level and Channel Separation on Phonograph Discs Using Optical Interferometry Techniques
AU  - Inoue, T.
AU  - Owaki, I.
AU  - Ohba, K.
AU  - Nakamura, S.
AU  - Eargle, John
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 22
IS  - 9
SP  - 704
EP  - 705
PY  - 1974
DA  - 1974/11/06
UR  - https://aes.org/publications/elibrary-page/?id=2727
PB  - Audio Engineering Society
LA  - en
AB  - Measurements of recorded level and channel separation using standard optical methods or by means of phonograph cartridges yield only approximate values. In the case of cartridge measurements, groove deformation as well as cartridge crosstalk characteristics further influence the results. A technique using dual-beam interferometry to yield high orders of accuracy in determining recorded levels and channel separation in stereo discs is described.
ER  -