variable-density sound record meaning

In photographic sound-on-film recording, a sound track made by varying, in sympathy with the sound frequency, the amount of light reaching the film. Compare VARIABLE-WIDTH SOUND RECORD.

Related Words

  1. variable transformer meaning
  2. variable-area meter meaning
  3. variable-area sound track meaning
  4. variable-area track meaning
  5. variable-carrier modulation meaning
  6. variable-density sound track meaning
  7. variable-depth sonar meaning
  8. variable-efficiency modulation meaning
  9. variable-erase recording meaning
  10. variable-frequency oscillator meaning
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