Dual-Band Speech Encoding
First Claim
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1. A computing device comprising:
- one or more computer processors;
one or more computer-readable media having instructions stored thereon that, responsive to execution by the one or more computer processors, perform operations comprising;
determining, based on one speech waveform, a wideband speech feature and a narrowband speech feature;
determining, based on the wideband speech feature, an estimate of the narrowband speech feature;
determining, based on the narrowband speech feature and the estimate of the narrowband speech feature, an estimation error of the estimate of the narrowband speech feature;
transmitting the wideband speech feature and the estimation error to a remote entity; and
receiving, from the remote entity, data associated with a speech-based service based on the wideband speech feature.
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Abstract
This document describes various techniques for dual-band speech encoding. In some embodiments, a first type of speech feature is received from a remote entity, an estimate of a second type of speech feature is determined based on the first type of speech feature, the estimate of the second type of speech feature is provided to a speech recognizer, speech-recognition results based on the estimate of the second type of speech feature are received from the speech recognizer, and the speech-recognition results are transmitted to the remote entity.
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Citations
20 Claims
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1. A computing device comprising:
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one or more computer processors; one or more computer-readable media having instructions stored thereon that, responsive to execution by the one or more computer processors, perform operations comprising; determining, based on one speech waveform, a wideband speech feature and a narrowband speech feature; determining, based on the wideband speech feature, an estimate of the narrowband speech feature; determining, based on the narrowband speech feature and the estimate of the narrowband speech feature, an estimation error of the estimate of the narrowband speech feature; transmitting the wideband speech feature and the estimation error to a remote entity; and receiving, from the remote entity, data associated with a speech-based service based on the wideband speech feature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computing device comprising:
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one or more computer processors; one or more computer-readable media having instructions stored thereon that, responsive to execution by the one or more computer processors, perform operations comprising; receiving, via a network interface of the computing device, a wideband speech feature from a remote entity; determining an estimate of a narrowband speech feature based on the wideband speech feature; providing the estimate of the narrowband speech feature to a speech recognizer trained on the narrowband speech features; receiving, from the speech recognizer, speech-recognition results based on the estimate of the narrowband speech feature; and transmitting, via the network interface and to the remote entity, the speech-recognition results based on the estimate of the narrowband speech feature. - View Dependent Claims (12, 13, 14, 15, 16)
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17. One or more computer-readable storage memories storing instructions that upon execution by a computing device, cause the computing device to perform operations comprising:
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receiving, from a remote entity, a wideband speech feature and an estimation error of a narrowband speech feature; determining an estimate of a narrowband speech feature based on the wideband speech feature and the estimation error of the narrowband speech feature; providing the estimate of the narrowband speech feature to a speech recognizer trained on narrowband speech features; receiving, from the speech recognizer trained on narrowband speech features, speech-recognition results based on the estimate of the narrowband speech feature; and transmitting, to the remote entity, the speech-recognition results based on the estimate of the narrowband speech feature. - View Dependent Claims (18, 19, 20)
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Specification