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Speech recognition device and speech recognition method

A speech recognition and speech technology, applied in speech recognition, speech analysis, instruments, etc., can solve the problems of not reflecting the user's instantaneous sound attributes, instantaneous environment attributes, and reducing user's speech recognition performance.

Inactive Publication Date: 2016-08-17
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, personal attributes and channel attributes cannot reflect the user's instantaneous sound attributes and instantaneous environmental attributes, such as sound changes caused by coughing, cars suddenly crossing the road, etc. Therefore, the AM selected based on these attributes will reduce the user's speech recognition performance

Method used

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  • Speech recognition device and speech recognition method
  • Speech recognition device and speech recognition method
  • Speech recognition device and speech recognition method

Examples

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Embodiment Construction

[0021] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the following description is merely illustrative and exemplary in nature, and is in no way intended to limit the invention and its application or uses. The relative arrangement of the constituent elements and steps, numerical expressions and numerical values ​​stated in the embodiments do not limit the scope of the present invention unless otherwise specifically stated. In addition, techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but should be considered a part of this description where appropriate.

[0022] Note that like reference numbers and letters refer to like items in the figures, so that once an item is defined in one figure, it need not be discussed for subsequent figures.

[0023] figure 1 is a block diagram showing the overall structure of a speech reco...

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Abstract

The invention discloses a speech recognition device and a speech recognition method. The speech recognition device comprises a unit which is configured to obtain speech inputted by a current user, a unit which is configured to split obtained speech and output at least two voice command segments, a unit which is configured to recognize a first predefined voice command from the voice command segments through using an acoustic model unrelated to a speaker, a unit which is configured to calculate a transformation matrix for the current user based on a voice command segment which is recognized as the first predefined voice command, a unit which is configured to select an acoustic model for the current user from acoustic models registered in the speech recognition device based the calculated transformation matrix, and a unit which is configured to recognize a second voice command from the voice command segments through using the selected acoustic model. According to the speech recognition device and the speech recognition method of the invention adopted, speech recognition performance can be improved through using the selected acoustic model (AM).

Description

technical field [0001] The invention relates to a speech recognition device and a speech recognition method. Background technique [0002] Voice recognition systems provide users with a convenient interface through which they can interact with any number of electronic devices that have voice recognition capabilities. Voice command recognition technology is the most convenient way for users to operate electronic devices such as multi-function printers (MFPs), cameras, personal data assistants (PDAs), and mobile phones. Users can directly input their own voice into the electronic device via a voice input device such as a microphone, and then, by using voice command recognition technology, the user's voice will be converted into a voice command to operate the electronic device. [0003] In general, an acoustic model (AM) for voice command recognition should be pre-registered or trained, however, registering or training an AM is time-consuming and many users are reluctant to do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/26
Inventor 郭莉莉
Owner CANON KK
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