Voice commands for transitioning between device states
First Claim
Patent Images
1. An apparatus comprising:
- a microphone unit;
one or more processors; and
one or more computer-readable media storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform acts comprising;
receiving an audio signal from the microphone unit, the audio signal including a first portion of speech and a second portion of speech subsequent to the first portion, the second portion including a predefined word or phrase;
calculating a volume of the first portion;
calculating a volume of the second portion;
determining a first score indicating a similarity between the second portion of speech and the predefined word or phrase; and
determining a second score based at least in part on the first score, the volume of the first portion, and the volume of the second portion; and
causing the apparatus to transition from a first state to a second state at least partly in response to determining that second score is greater than a threshold.
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Abstract
Techniques for transitioning an electronic device between device states. In one example, a voice-controlled device is configured to transition from a sleep state to an awake state in response to identifying a user speaking a predefined utterance. The techniques may determine whether the user has spoken the predefined utterance with reference to traditional speech-recognition techniques, as well as with reference to changes in the volume of a user'"'"'s voice.
53 Citations
26 Claims
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1. An apparatus comprising:
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a microphone unit; one or more processors; and one or more computer-readable media storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform acts comprising; receiving an audio signal from the microphone unit, the audio signal including a first portion of speech and a second portion of speech subsequent to the first portion, the second portion including a predefined word or phrase; calculating a volume of the first portion; calculating a volume of the second portion; determining a first score indicating a similarity between the second portion of speech and the predefined word or phrase; and determining a second score based at least in part on the first score, the volume of the first portion, and the volume of the second portion; and causing the apparatus to transition from a first state to a second state at least partly in response to determining that second score is greater than a threshold. - View Dependent Claims (2, 3, 4, 5)
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6. One or more non-transitory computer-readable media storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform acts comprising:
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determining a first score indicating a similarity between (i) an audio signal that includes speech from a user, and (ii) a predefined word or phrase; determining a first volume of a first portion of the audio signal; determining a second volume of a second portion of the audio signal; determining a second score based at least in part on the first score, the first volume, and the second volume; and instructing an apparatus to perform an operation based at least in part on the second score. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method comprising:
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under control of one or more computing devices that include executable instructions, analyzing a first portion of an audio signal to determine a first score indicating a similarity between the first portion of the audio signal and a predefined word or phrase; determining a volume of the first portion of the audio signal and a volume of a second portion of the audio signal; and calculating a second score based at least in part on the first score, the volume of the first portion, and the volume of the second portion. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification