Performance Prediction For An Interactive Speech Recognition System
First Claim
1. An interactive speech recognition system (100) for recognizing speech of a user (112), the speech recognition system comprising:
- means for receiving acoustic signals comprising a background noise,means for selecting a noise model (106) on the basis of the received acoustic signals,means for predicting of a performance level (108) of a speech recognition procedure on the basis of the selected noise model,means for indicating (110) the predicted performance level to the user.
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Abstract
The present invention provides an interactive speech recognition system and a corresponding method for determining a performance level of a speech recognition procedure on the basis of recorded background noise. The inventive system effectively exploits speech pauses that occur before the user enters speech that becomes subject to speech recognition. Preferably, the inventive performance prediction makes effective use of trained noise classification models. Moreover, predicted performance levels are indicated to the user in order to give a reliable feedback of the performance of the speech recognition procedure. In this way the interactive speech recognition system may react to noise conditions that are inappropriate for generating reliable speech recognition.
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Citations
12 Claims
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1. An interactive speech recognition system (100) for recognizing speech of a user (112), the speech recognition system comprising:
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means for receiving acoustic signals comprising a background noise, means for selecting a noise model (106) on the basis of the received acoustic signals, means for predicting of a performance level (108) of a speech recognition procedure on the basis of the selected noise model, means for indicating (110) the predicted performance level to the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 12)
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8. A method of interactive speech recognition comprising the steps of:
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receiving acoustic signals comprising background noise, selecting a noise model of a plurality of trained noise models on the basis of the received acoustic signals, predicting a performance level of a speech recognition procedure on the basis of the selected noise model, indicating the predicted performance level to a user. - View Dependent Claims (9, 10)
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11. A computer program product for an interactive speech recognition system comprising computer program means being adapted for:
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receiving acoustic signals comprising background noise, selecting a noise model on the basis of the received acoustic signals, calculating of a performance level of a speech recognition procedure on the basis of the selected noise model, indicating the predicted performance level to the user.
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Specification