×

Method and system for synchronization of an auxiliary sound source to motion picture film, video tape, or other picture source containing a sound track

  • US 4,839,733 A
  • Filed: 12/15/1987
  • Issued: 06/13/1989
  • Est. Priority Date: 12/15/1987
  • Status: Expired due to Term
First Claim
Patent Images

1. In the showing of viewable images depicting motion and wherein the viewable images are provided by operation of a first medium containing first means providing a first sound signal to provide an audio message of first quality accompanying the viewable images and wherein said means for providing said first sound signal are made from a master recording, the method of synchronizing with said first sound signal a second sound signal of higher quality than said first quality but containing the same audio message to accompany the showing of the viewable images, said method comprising the steps of:

  • providing a second medium containing second means for providing said second sound signal;

    making said second means from the master recording for enabling said second means to provide said second sound signal of said higher quality but containing the same audio message;

    starting operation of said second medium a predetermined time interval before commencing the operation of the first medium;

    thereafter simultaneously operating both said second medium and said first medium for simultaneously providing both said second sound signal and said first sound signal but wherein the audio message of said second sound signal is preceding by said predetermined time interval the audio message of said first sound signal;

    accessibly placing in temporary storage a continuously updated current portion of said second sound signal occurring over a current time interval at least equal to said predetermined time interval; and

    continiously removing from temporary storage successive increments of said second sound signal correlated with the currently occurring first sound signal for providing said second sound signal synchronized with said first sound signal; and

    utilizing the synchronized second sound signal for providing the same audio message as said first sound signal but at a higher quality to accompany the showing of the viewable images.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×