Phonetic searching
First Claim
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1. A method of searching an audio source for occurrence of a search string, the method comprising:
- processing the audio source according to a plurality of audio states independently of the search string, includingforming a plurality of time frames from the audio source, andstoring, for each of the time frames, quantities characterizing probabilities associated with the occurrence of each of the plurality of audio states within said each time frame;
accepting the search string;
using the search string and the stored quantities characterizing the probabilities, determining for each of a series of the time frames a quantity characterizing a probability that the search string ended or began at said time frame.
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Abstract
An improved method and apparatus is disclosed which uses probabilistic techniques to map an input search string with a prestored audio file, and recognize certain portions of a search string phonetically. An improved interface is disclosed which permits users to input search strings, linguistics, phonetics, or a combination of both, and also allows logic functions to be specified by indicating how far separated specific phonemes are in time.
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Citations
16 Claims
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1. A method of searching an audio source for occurrence of a search string, the method comprising:
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processing the audio source according to a plurality of audio states independently of the search string, including forming a plurality of time frames from the audio source, and storing, for each of the time frames, quantities characterizing probabilities associated with the occurrence of each of the plurality of audio states within said each time frame; accepting the search string; using the search string and the stored quantities characterizing the probabilities, determining for each of a series of the time frames a quantity characterizing a probability that the search string ended or began at said time frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification