System and method for audio hot spotting
First Claim
1. A method of searching for audio features within multimedia files, comprising:
- specifying one or more classes of audio sounds, each of the classes comprising acoustic characteristics of a range of sounds;
searching an audio track of a multimedia file to detect occurrences of the classes; and
retrieving at least a segment of the searched multimedia file, if the segment contains at least one occurrence of the classes.
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Abstract
Audio hot spotting is accomplished by specifying query criterion to include a non-lexical audio cue. The non-lexical audio cue can be, e.g., speech rate, laughter, applause, vocal effort, speaker change or any combination thereof. The query criterion is retrieved from an audio portion of a file. A segment of the file containing the query criterion can be provided to a user. The duration of the provided segment can be specified by the user along with the files to be searched. A list of detections of the query criterion within the file can also be provided to the user. Searches can be refined by the query criterion additionally including a lexical audio-cue. A keyword index of topic terms contained in the file can also be provided to the user.
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Citations
32 Claims
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1. A method of searching for audio features within multimedia files, comprising:
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specifying one or more classes of audio sounds, each of the classes comprising acoustic characteristics of a range of sounds; searching an audio track of a multimedia file to detect occurrences of the classes; and retrieving at least a segment of the searched multimedia file, if the segment contains at least one occurrence of the classes.
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2. A method of searching for audio features within multimedia files, comprising:
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specifying a query criterion that comprises one or more classes of audio sounds, each of the classes comprising acoustic characteristics of a range of sounds; querying an audio track of a multimedia file to detect occurrences of the classes; and retrieving at least a segment of the searched multimedia file, if the segment contains at least one occurrence of the classes. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system for searching for audio features within multimedia files, comprising:
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a user interface for specifying a query criterion comprising one or more classes of audio sounds, each of the classes comprising acoustic characteristics of a range of sounds; and an audio feature extractor that (i) queries an audio track of a multimedia file to detect occurrences of the classes (ii) retrieves at least a segment of the searched multimedia file, if the segment contains at least one occurrence of the classes. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification