Audio data deletion and silencing during trick mode replay
AssigneeThomson Licensing
InventorsRonald Lynn Blair, Shu Lin, Mark Alan Schultz, Robert Warren Schmidt
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Abstract
The invention concerns a method and apparatus for audio program playback during fast forward playback video trick modes. A storage medium reader can be configured to read coded digital data from a storage medium such as a DVD. The coded digital data can be a video presentation having correspondingly formatted video and audio frames. An audio processor can insert silence frames in a selected block of the audio frames and portions of the audio frames can be deleted to compensate for video trick mode playback. Resulting audio frames can be concatenated to create 1× audio for various video trick modes playback.
Claims20
A method for playing audio programming during video trick mode playback of a video presentation, the method comprising:
- reading coded digital data comprising video frames and corresponding audio frames;
- periodically dropping selected blocks of said audio frames;
- and
- interspersing periods of silence between at least some of the blocks remaining after said dropping step to form a signal for audio playback.
An apparatus for playing audio content accompanying video trick mode playback of a video program, comprising:
- a storage medium reader for reading coded digital data from a storage medium, said coded digital data representing video frames and corresponding audio data;
- and,
- a control processor for selecting blocks of said corresponding audio data to be dropped periodically, and for selecting at least a portion of said blocks remaining for audio playback, and said control processor controllably inserting periods of silence between ones of said remaining blocks for audio playback.
A method for playing audio programming during video trick mode playback of a video presentation, the method comprising:
- reading coded digital data from a storage medium, said coded digital data comprising video frames and corresponding audio data;
- periodically dropping selected blocks of said audio data, and selecting at least a portion of blocks remaining for audio playback;
- and
- inserting audio data representative of silence between ones of said portion of remaining blocks for audio playback.
Dependencies are inferred from the claim text.