Dual-band speech encoding
AssigneeMicrosoft Corporation
InventorsAlejandro Acero, James G. Droppo, III, Michael L. Seltzer
Life of this patent
Estimating the term…
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.
Claims19
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.
A method comprising:
- 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.
A method comprising:
- 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.
Dependencies are inferred from the claim text.