Patent
Method and system for recognizing speech commands using background and foreground acoustic models
Shuai Yue,Li Lu,Xiang Zhang,Dadong Xie,Haibo Liu,Bo Chen,Jian Liu +6 more
- 13 Dec 2013
TL;DR: In this article, a method of recognizing speech commands includes generating a background acoustic model for a sound using a first sound sample and a foreground acoustic model is generated for the sound using the second sound sample.
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Abstract: A method of recognizing speech commands includes generating a background acoustic model for a sound using a first sound sample, the background acoustic model characterized by a first precision metric. A foreground acoustic model is generated for the sound using a second sound sample, the foreground acoustic model characterized by a second precision metric. A third sound sample is received and decoded by assigning a weight to the third sound sample corresponding to a probability that the sound sample originated in a foreground using the foreground acoustic model and the background acoustic model. The method further includes determining if the weight meets predefined criteria for assigning the third sound sample to the foreground and, when the weight meets the predefined criteria, interpreting the third sound sample as a portion of a speech command. Otherwise, recognition of the third sound sample as a portion of a speech command is forgone.
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References
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Patent
Computer-implemented noise normalization method and system
Victor Lee,Otman A. Basir,Fakhreddine Karray,Jiping Sun,Xing Jing +4 more
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TL;DR: In this article, a computer-implemented speech recognition method and system for handling noise contained in a user input speech is presented, where a domain acoustic noise model is selected from a plurality of candidate domain acoustic noises models that substantially match the acoustic profile of the environmental noise in the user input input speech.
79
Patent
System and method for computing and transmitting parameters in a distributed voice recognition system
Harinath Garudadri,Hynek Hermansky,Lukas Burget,P. Jain,Sachin S. Kajarekar,Sunil Sivadas,Stéphane Dupont,Maria Carmen Benitez Ortuzar,Nelson Morgan +8 more
- 29 Jan 2002
TL;DR: In this article, a system and method for extracting acoustic features and speech activity on a device and transmitting them in a distributed voice recognition system is presented. But the system is not suitable for speech recognition.
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