| 摘要 |
A combination system of speech recognition engines comprises a pool of speech recognition engines that vary amongst themselves in various characterizing measures like processing speed, error rates, cost, etc. One such speech recognition engine is designated as primary and others are designated as supplemental, according to the job at hand and the peculiar benefits of using each selected engine. The primary engine is run on every job. A supplemental engine may be run if some measure indicates more speed or more accuracy is needed. A combination unit aligns and combines the outputs of the primary and supplemental engines. Any grammar constraints are enforced by the combination unit in the final result. A finite state machine is generated from the grammar constraints, and is used to guide the search in word transition network for an optimal final string.
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