Speech recognition using multiple sensors
AssigneeNura Holdings Pty Ltd
InventorsLuke John Campbell, Dragan Petrovic
Life of this patent
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Abstract
Introduced here are systems and methods to increase accuracy of speech recognition by utilizing multiple sensors placed at multiple speech transmission regions such as a user's lips, throat, ear canal, etc. The various speech transmission regions are better at transmitting certain phonemes, and a sensor placed close to a particular speech transition region can more accurately detect the phoneme transmitted through the particular speech transmission region. For example, a microphone placed close to the lips can better detect labial phonemes such as m, n, p, and b, than a microphone placed close to the throat. Further, disclosed here are ways to reduce energy consumption while performing speech recognition.
Claims13
-32. (canceled)
A system comprising:
- a plurality of microphones comprising a first microphone and a second microphone,
- wherein the first microphone is configured to be disposed at an entrance or within a user's ear canal to measure a first sound responsive to a user's speech;
- and
- wherein the second microphone is configured to be disposed proximate to a mouth of the user to measure a second sound responsive to the user's speech;
- and
- a hardware processor configured to:
- modify probabilities of phoneme predictions in a speech recognition algorithm based on a difference between an amplitude and a phase associated with the first sound and the second sound;
- and
- selectively focus on one of the first or the second microphones based on the probabilities of the phoneme predictions.
A method comprising:
- receiving a first sound responsive to a user's speech from a first microphone disposed at an entrance or within a user's ear canal;
- receiving a second sound responsive to the user's speech from a second microphone disposed proximate to a mouth of the user;
- modifying probabilities of phoneme predictions in a speech recognition algorithm based on a difference between an amplitude and a phase associated with the first sound and the second sound;
- and
- selectively focusing on one of the first or the second microphones based on the probabilities of the phoneme predictions.
Dependencies are inferred from the claim text.