Methods and apparatus for retrieving audio information using content and speaker information
First Claim
1. A method for retrieving audio information from one or more audio sources, said method comprising the steps of:
- receiving a user query specifying at least one content and one speaker constraint; and
comparing said user query with a content index and a speaker index of said audio source to identify audio information satisfying said user query.
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Accused Products
Abstract
Methods and apparatus are provided for retrieving audio information based on the audio content as well as the identity of the speaker. The results of content and speaker-based audio information retrieval methods are combined to provide references to audio information (and indirectly to video). A query search system retrieves information responsive to a textual query containing a text string (one or more key words), and the identity of a given speaker. An indexing system transcribes and indexes the audio information to create time-stamped content index file(s) and speaker index file(s). An audio retrieval system uses the generated content and speaker indexes to perform query-document matching based on the audio content and the speaker identity. Documents satisfying the user-specified content and speaker constraints are identified by comparing the start and end times of the document segments in both the content and speaker domains. Documents satisfying the user-specified content and speaker constraints are assigned a combined score that can be used in accordance with the present invention to rank-order the identified documents returned to the user, with the best-matched segments at the top of the list.
205 Citations
33 Claims
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1. A method for retrieving audio information from one or more audio sources, said method comprising the steps of:
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receiving a user query specifying at least one content and one speaker constraint; and
comparing said user query with a content index and a speaker index of said audio source to identify audio information satisfying said user query. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An audio retrieval system for retrieving audio information from one or more audio sources, comprising:
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a memory that stores a content index and a speaker index of said audio source and computer-readable code; and
a processor operatively coupled to said memory, said processor configured to implement said computer-readable code, said computer-readable code configured to;
receive a user query specifying one or more words and the identity of a speaker; and
combine the results of a content-based and a speaker-based audio information retrieval to provide references to said audio source based on the audio content and the speaker identity. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An article of manufacture for retrieving audio information from one or more audio sources, comprising:
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a computer readable medium having computer readable program code means embodied thereon, said computer readable program code means comprising;
a step to receive a user query specifying one or more words and the identity of a speaker; and
a step to combine the results of a content-based and a speaker-based audio information retrieval to provide references to said audio source based on the audio content and the speaker identity.
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33. An article of manufacture for retrieving audio information from one or more audio sources, comprising:
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a computer readable medium having computer readable program code means embodied thereon, said computer readable program code means comprising;
a step to receive a user query specifying at least one content and one speaker constraint; and
a step to compare said user query with a content index and a speaker index of said audio source to identify audio information satisfying said user query.
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Specification