A method and an apparatus are provided for retrieving keyword. The apparatus configures at least two types of language models in a model file, where each type of language model includes a recognition model and a corresponding decoding model; the apparatus extracts a speech feature from the to-be-processed speech data; performs language matching on the extracted speech feature by using recognition models in the model file one by one, and determines a recognition model based on a language matching rate; and determines a decoding model corresponding to the recognition model; decoding the extracted speech feature by using the determined decoding model, and obtains a word recognition result after the decoding; and matches a keyword in a keyword dictionary and the word recognition result, and outputs a matched keyword.

Claims

15 · 3 independent · depth 3

15 granted claims

›1.independentA method for retrieving keyword from speech, comprising:nconfiguring, by an apparatus comprising a processor circuitry, language models, wherein at le…+4

›2.↳ 1The method according to claim 1, further comprising:ntraining and creating a new recognition model and a new decoding model, both the new recognition …d2

›3.↳ 1The method according to claim 1, wherein extracting the speech feature from the to-be-processed speech data comprises:nperforming speech waveform proc…d2

›4.↳ 1The method according to claim 1, wherein decoding the extracted speech feature by using the identified decoding model comprises:nsearching for an opti…d2+1

›6.independentAn apparatus for performing speech keyword retrieval, comprising a processor and a non-transitory storage medium accessible to the processor, the non-…+4

›7.↳ 6The apparatus according to claim 6, further comprising a language extension unit that trains and creates a new recognition model and a new decoding mo…d2

›8.↳ 6The apparatus according to claim 6, wherein the feature extracting unit comprises a feature extracting module that performs speech waveform processing…d2

›9.↳ 6The apparatus according to claim 6, wherein the decoding unit comprises a path search module that searches for an optimal matching path for the speech…d2+1

›11.independentA phone for performing speech keyword retrieval, comprising a processor and a non-transitory storage medium accessible to the processor, the phone con…+4

›12.↳ 11The phone according to claim 11, the acts further comprising training and creating a new recognition model and a new decoding model, and adding a lang…d2+1

›14.↳ 11The phone according to claim 11, wherein decoding the extracted speech feature comprises:nsearching for an optimal matching path for the speech featur…d2+1

Classifications

4 codes

IPC · International Patent Classification

Section G — Physics

G10L15/08
G10L15/18
G10L15/28
G10L15/32

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non-final + final

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Eric Yen

art unit 2658 · TC 2600

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›Priority documents — 1

Type	Document	Date
related publication	US 20150154955 A1	4 Jun 2015

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