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Speech decoding method and device, and terminal equipment

A voice decoding and voice signal technology, applied in voice analysis, instruments, etc., can solve the problem of low decoding accuracy of voice signals

Active Publication Date: 2020-09-04
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] Embodiments of the present invention provide a speech decoding method, device and terminal equipment to solve the problem of relatively low decoding accuracy of speech signals

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  • Speech decoding method and device, and terminal equipment
  • Speech decoding method and device, and terminal equipment
  • Speech decoding method and device, and terminal equipment

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0045] The term "comprising" and any variations thereof in the description and claims of this application are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device comprising a series of steps or units is not necessarily limited to the explicit instead of those steps or elements explicitly listed, other steps or elements not explicitly listed or inherent to the process, method, product or apparatus may b...

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Abstract

The embodiment of the invention provides a speech decoding method, a speech decoding device and terminal equipment. The method comprises the following steps: obtaining a first decoding result set of aspeech signal based on a first language model and an acoustic model, and acquiring a second decoding result set of the speech signal based on a second language model and the acoustic model, wherein the first decoding result set comprises at least one first decoding result, and the second decoding result set comprises at least one second decoding result; establishing a time sequence comprising N first decoding results and M second decoding results; and inputting the decoding results included in the time sequence into an LSTM model according to the time sequence of the time sequence to performjoint prediction so as to obtain a first score of each decoding result in the time sequence, and outputting the decoding result with the highest first score in the time sequence. According to the embodiment of the invention, the decoding accuracy of the speech signal can be improved.

Description

technical field [0001] The present invention relates to the technical field of voice processing, in particular to a voice decoding method, device and terminal equipment. Background technique [0002] With the continuous popularization of smart devices, voice interaction has gradually become the main way of human-computer interaction. However, in practical applications, there is often a certain distance between the user and the device, which may cause noise interference or weakening of the strength of the voice signal, which increases the difficulty of decoding the voice signal. At present, the commonly used speech decoding methods are mainly based on the language model and the acoustic model to obtain the decoding results of speech signals, and extract the multi-dimensional features of each decoding result, and then use the logistic regression (LR) model to predict the features of these decoding results. The final decoding result is selected, but since the LR model predicts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L19/04G10L19/16G10L25/27
CPCG10L19/04G10L19/16G10L25/27
Inventor 陈涛付晓寅臧启光吴玉芳瞿琴
Owner BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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