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ICASSP
2009
IEEE

Spoken term detection using fast phonetic decoding

10 years 4 months ago
Spoken term detection using fast phonetic decoding
While spoken term detection (STD) systems based on word indices provide good accuracy, there are several practical applications where it is infeasible or too costly to employ an LVCSR engine. An STD system is presented, which is designed to incorporate a fast phonetic decoding front-end and be robust to decoding errors whilst still allowing for rapid search speeds. This goal is achieved through monophone open-loop decoding coupled with fast hierarchical phone lattice search. Results demonstrate that an STD system that is designed with the constraint of a fast and simple phonetic decoding front-end requires a compromise to be made between search speed and search accuracy.
Roy Wallace, Robbie Vogt, Sridha Sridharan
Added 21 May 2010
Updated 21 May 2010
Type Conference
Year 2009
Where ICASSP
Authors Roy Wallace, Robbie Vogt, Sridha Sridharan
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