Hierarchical approach for spotting keywords
| Type of publication: | Idiap-RR |
| Citation: | lehtonen-2005 |
| Number: | Idiap-RR-41-2005 |
| Year: | 2005 |
| Institution: | IDIAP |
| Abstract: | The paper presents a new approach to spotting a particular sound (keyword) in an acoustic stream. The approach is based on hierarchical processing where equally-sampled posterior probabilities of phoneme classes are estimated first, followed by matched filtering that yields non-equally spaced values, one for each phoneme, indicating confidences of underlying phoneme being present. The target keyword is indicated by a particular sequence of high-confidence phonemes. |
| Userfields: | ipdmembership={speech}, |
| Keywords: | acoustic stream, hierarchical processing |
| Projects: |
Idiap |
| Authors: | |
| Added by: | [UNK] |
| Total mark: | 0 |
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