Variable rate video playback with synchronized audio

Details Variable rate video playback with synchronized audio Variable rate video playback with synchronized audio

1996-12-05

1999-04-06

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

Application

386 66, 704503, G01L 300, G01L 302, H04N 591

Patent

active

058930620

ABSTRACT:
The invention enables the apparent display rate of an audiovisual display to be varied. The invention can modify an original set of audio data in accordance with a target display rate, then modify a related original set of video data to conform to the modifications made to the audio data set, such that the modified audio and video data sets are synchronized. When the modified audio and video data sets so produced are used to generate an audiovisual display, the audiovisual display has an apparent display rate that approximates the target display rate. The target display rate can be faster or slower than a normal display rate at which an audiovisual display system generates an audiovisual display from the original sets of audio and video data. The target display rate can be established solely by a user instruction, by analysis of the audiovisual data, or by modification of a user-specified nominal target display rate based upon analysis of the audiovisual data. Preferably, the method for modifying the original audio data set is one that produces a modified audio data set that can be used to generate an audio display having little or no distortion.

REFERENCES:
patent: 5175769 (1992-12-01), Hejna, Jr. et al.
patent: 5420801 (1995-05-01), Dockter et al.
patent: 5664227 (1997-09-01), Mauldin et al.
patent: 5687095 (1997-11-01), Haskell et al.
B. Arons, "Techniques, Perception and Application of Time-Compressed Speech," Proceeding of 1992 Conference of American Voice I/O Society, Sep. 1992, 169-177.
D. P. Huttenlocher, J. J. Noh and W. J. Rucklidge, "Tracking No-Rigid Objects in Complex Scenes," IEEE International Conference on Computer Vision, 1995, pp. 93-101.
S. Roucos and A. M. Wilgus, "High Quality Time-Scale Modification for Speech," International Conference on Acoustic, Speech, and Signal Processing, 1985, vol. 2, pp. 493-496.
R. Zabih, J. Woodfill and M. Withgott, "A Real-Time System for Automatically Annotating Unstructured Image Sequences," IEEE International Conference on Systems, Man, and Cybernetics, 1993, 6 pages.

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