Patent ID: 9009695
Filing Date: 2015-04-14
Classification: G06F,G10L

Abstract:
1. A method for changing from a first adaptive speech recognizer associated with at least one first speech recognition data model to a second adaptive speech recognizer associated with at least one second speech recognition data model, the method comprising using at least one processor to: execute the first adaptive speech recognizer to process speech data using the at least one first speech recognition data model to provide associated first text, and to adapt the at least one first speech recognition data model based at least in part on the first text; execute the second adaptive speech recognizer to process the speech data using the at least one second speech recognition data model to generate associated second text, and to adapt the at least one second speech recognition data model based at least in part on the second text, wherein the first and second text generated by the first and second adaptive speech recognizers, respectively, are available for a same use contemporaneous with executing the first adaptive speech recognizer and the second adaptive speech recognizer; determine whether the performance of the second adaptive speech recognizer complies with at least one quality criterion; when the performance of the second adaptive speech recognizer does not comply with the at least one quality criterion, output the first text for use; and when the performance of the second adaptive speech recognizer does comply with the at least one quality criterion, output the second text for use in place of the first text, wherein the performance of the second adaptive speech recognizer improves as a result of adapting the at least one second speech recognition data model during a period when the first and second adaptive speech recognizers are executed in parallel on the speech data and the first text provided by the first speech recognizer is output for use, processing the speech data by the second adaptive speech recognizer results in training data used, at least in part, to adapt the at least one second speech recognition data model, and wherein the performance of the second adaptive speech recognizer complies with the at least one quality criterion when the amount of training data exceeds a threshold amount.