Synchronization of digital audio with digital video
AssigneeThe Grass Valley Group, Inc.
InventorsMichael Poimboeuf, Kevin D. Windrem
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AssigneeThe Grass Valley Group, Inc.
InventorsMichael Poimboeuf, Kevin D. Windrem
Estimating the term…
A method for synchronization of a digital audio signal sampled at a standard audio frequency with the corresponding digital video signal sampled at a standard video frequency associates an integer number of samples of the digital audio signal with each video field of the digital video signal. The number of audio samples per video field is determined by the audio sample rate rounded up to the nearest integer. Every N video fields where the number of digital audio samples is an integer value, the digital audio signal is resynchronized with the digital video signal by repeating the digital audio samples at the end of video field N that correspond to video field N+1. At reception the same digital audio samples are skipped at the end of video field N.
A method of synchronizing a digital audio signal with a corresponding digital video signal comprising the steps of:
A method as recited in claim I further comprising the steps of skipping for reception the digital audio samples at the end of the Nth video field that correspond to the digital audio samples at the beginning of the N+1st video field.
An apparatus for synchronizing a digital audio signal with a corresponding digital video signal comprising:
Dependencies are inferred from the claim text.