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公开(公告)号：US10777189B1
公开(公告)日：2020-09-15
申请号：US15832259
申请日：2017-12-05
Applicant: Amazon Technologies, Inc.
Inventor： Gengshen Fu , Shiv Naga Prasad Vitaladevuni , Paul McIntyre , Shuang Wu
Abstract: Techniques for using a dynamic wakeword detection threshold are described. A device detects a wakeword in audio data using a first wakeword detection threshold value. Thereafter, the device receives audio including speech. If the device receives the audio within a predetermined duration of time after detecting the previous wakeword, the device attempts to detect a wakeword in second audio data, corresponding to the audio including the speech, using a second, lower wakeword detection threshold value.
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公开(公告)号：US10510340B1
公开(公告)日：2019-12-17
申请号：US15832331
申请日：2017-12-05
Applicant: Amazon Technologies, Inc.
Inventor： Gengshen Fu , Shiv Naga Prasad Vitaladevuni , Paul McIntyre , Shuang Wu
Abstract: Techniques for using a dynamic wakeword detection threshold are described. A server(s) may receive audio data corresponding to an utterance from a device in response to the device detecting a wakeword using a wakeword detection threshold. The server(s) may then determine the device should use a lower wakeword detection threshold for a duration of time. In addition to sending the device output data responsive to the utterance, the server(s) may send the device an instruction to use the lower wakeword detection threshold for the duration of time. Alternatively, the server(s) may train a machine learning model to determine when the device should use a lower wakeword detection threshold. The server(s) may send the trained machine learned model to the device for use at runtime.
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公开(公告)号：US11699433B2
公开(公告)日：2023-07-11
申请号：US16936952
申请日：2020-07-23
Applicant: Amazon Technologies, Inc.
Inventor： Gengshen Fu , Shiv Naga Prasad Vitaladevuni , Paul McIntyre , Shuang Wu
CPC classification number: G10L15/18 , G10L15/22 , G10L15/30 , G10L2015/088
Abstract: Techniques for using a dynamic wakeword detection threshold are described. A device detects a wakeword in audio data using a first wakeword detection threshold value. Thereafter, the device receives audio including speech. If the device receives the audio within a predetermined duration of time after detecting the previous wakeword, the device attempts to detect a wakeword in second audio data, corresponding to the audio including the speech, using a second, lower wakeword detection threshold value.
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