Method, apparatus, and system for automatically monitoring for voice input based on context

摘要

In one implementation, a computer-implemented method includes detecting a current context associated with a mobile computing device and determining, based on the current context, whether to switch the mobile computing device from a current mode of operation to a second mode of operation during which the mobile computing device monitors ambient sounds for voice input that indicates a request to perform an operation. The method can further include, in response to determining whether to switch to the second mode of operation, activating one or more microphones and a speech analysis subsystem associated with the mobile computing device so that the mobile computing device receives a stream of audio data. The method can also include providing output on the mobile computing device that is responsive to voice input that is detected in the stream of audio data and that indicates a request to perform an operation.

主权项

1. A computer-implemented method comprising: detecting a change in a context associated with a computing device; in response to detecting the change in the context associated with the computing device, classifying a changed context as a context that likely indicates that ambient sounds will include one or more trigger terms that correspond to a request from a user for the computing device to perform an operation; in response to classifying the changed context as a context that likely indicates that ambient sounds will include the one or more trigger terms that correspond to the request from the user for the computing device to perform an operation, switching the computing device to a mode of operation in which the computing device monitors the ambient sounds for the one or more trigger terms that correspond to the request from the user for the computing device to perform an operation; receiving the ambient sounds; receiving data indicating that the ambient sounds include the one or more trigger terms that correspond to the request from the user for the computing device to perform an operation; and in response to receiving data indicating that the ambient sounds include the one or more trigger terms that correspond to the request from the user for the computing device to perform the operation, providing an output that is responsive to the request.