Dual-band speech encoding
First Claim
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1. A method 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.
21 Citations
19 Claims
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1. A method comprising:
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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)
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7. A method comprising:
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receiving 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, to the remote entity, the speech-recognition results based on the estimate of the narrowband speech feature. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method 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 (14, 15, 16, 17, 18, 19)
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Specification