Processing variable area film soundtracks

Details Processing variable area film soundtracks Processing variable area film soundtracks

G - Physics

11

B

G11B 7/003 (2006.01) G03B 31/02 (2006.01) G11B 20/10 (2006.01)

Patent

CA 2458659

A method for playback of film with an analog optical sound track the method comprises the steps of forming an image of only said analog optical sound track. Storing the image and representing part of the stored image as a spatial image. Processing the spatial image to form a median value and converting the median value of the spatial image to a signal represented in said sound track. Repeating the representing and processing steps to form median values for all of the image of the analog optical sound track.

L'invention concerne un procédé de lecture d'un film au moyen d'une piste sonore optique analogique. Ce procédé comprend les étapes consistant à former une image uniquement de la piste sonore optique analogique, à stocker cette image et à représenter partiellement l'image stockée en tant qu'image spatiale, à traiter cette image spatiale pour former une valeur médiane et à convertir cette valeur médiane de l'image spatiale en un signal représentant un signal audio représenté dans ladite piste sonore, à répéter les étapes de représentation et de traitement pour former des valeurs médianes pour toute l'image de la piste sonore optique analogique.

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