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Information processing method and system and electronic device

An information processing method and technology of electronic equipment, applied in the field of information processing, can solve the problems of speech amplitude truncation, lowering speech recognition rate, etc., and achieve the effects of improving signal-to-noise ratio, improving speech accuracy and recognition rate

Active Publication Date: 2014-09-24
LENOVO (BEIJING) CO LTD
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiency that the current fixed gain for the voice signal of higher volume may cause the voice amplitude to be truncated and thereby reduce the voice recognition rate

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  • Information processing method and system and electronic device

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Embodiment Construction

[0043] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0044] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0045] In the prior art, because the recognition rate of the recognition engine in a large noise environment is in a low state, it is necessary to perform noise removal with a strong capability to ensure the restoration of the speech signal. However, nois...

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Abstract

The invention discloses an information processing method and system and an electronic device. The defects of speech amplitude truncation and reduced speech recognition rate, which are caused by the fact that fixed gain is carried out on a speech signal with high volume at the present, are overcome. The method is applied to the electronic device. The electronic device has a speech acquisition unit. The method comprises the steps that the speech signal is acquired through the speech acquisition unit; the speech signal is analyzed to acquire the environmental noise of the environment of the electronic device; based on the corresponding relationship among the environment noise, the preset level of the environment noise and a speech signal processing method, the speech signal processing method corresponding to the environment noise is determined; and first processing is carried out on the speech signal based on the speech signal processing method corresponding to the environment noise, so that the amplitude of the speech signal is maintained in a predetermined range. According to the embodiment of the invention, the signal-to-noise ratio can be maximized, and the speech accuracy and recognition rate are improved.

Description

technical field [0001] The present invention relates to information processing technology, in particular to an information processing method and system, and an electronic device. Background technique [0002] Users who use electronic devices for communication will involuntarily increase their volume in a noisy environment, thereby improving the feedback on their own voice in a noisy environment. This phenomenon is called the Lombard phenomenon. [0003] In the process of realizing the present invention, the inventors of the present invention found that the prior art has at least the following technical defects. [0004] Since the gain setting needs to ensure that the amplitude of the recording signal in a normal environment is within a reasonable range, in a noisy environment, since the user's own volume will increase to a certain extent, the fixed gain may cause the voice amplitude to be truncated, thus Greatly reduces the speech recognition rate. Contents of the inventi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/20G10L21/0316
Inventor 戴海生李燚陈晓燕王悦
Owner LENOVO (BEIJING) CO LTD
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