Continuous speech recognition system.

摘要

Disclosed is method and arrangement for speech recognition for use in a speech recognition system, wherein a grammar model may be stored in memory, the grammar model being composed of nodes connected by arcs, each arc generally having an associated template prestored in memory and respective originating and terminating grammar nodes, and wherein groups of input frames may be compared to templates to generate similarity measure parameters. The invention includes structuring the grammar model such that arcs may be looped within the structure. For implementing this type of structure, the invention includes providing first parameter storage and second parameter storage for one or more nodes including a terminating node for a selected arc, determining similarity measure parameters for the originating node for the selected arc, determining similarity measure parameters for the arc using a template associated with the arc and the originating node's similarity measure parameters. Further, similarity measure parameters are determined at the terminating node and are stored in the first parameter storage for the terminating node. The first parameter storage contents are transferred to the second parameter storage for the terminating node, and the groups of input frames are recognized using the parameter storage contents associated with the terminating node.