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Noise suppression method and device and mobile device

A mobile device, noise suppression technology, applied in the field of signal processing, can solve problems such as signal quality degradation and signal-to-noise ratio reduction

Active Publication Date: 2016-09-28
BEIJING HORIZON ROBOTICS TECH RES & DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in practical applications, due to factors such as multipath reflection and reverberation of various other audio signals from noise sources in the environment, the signal-to-noise ratio of the signal received by a single microphone will also be reduced, and the quality of the collected signal will be reduced.

Method used

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  • Noise suppression method and device and mobile device
  • Noise suppression method and device and mobile device
  • Noise suppression method and device and mobile device

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Embodiment Construction

[0034] Hereinafter, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described here.

[0035] Application overview

[0036]As mentioned above, the sound source localization technology in the prior art uses the audio signal emitted by the sound source to determine the position of the sound source, so as to further determine the position of the sound source according to the attribute of the sound source (for example, it is a sound source of interest (or called, a non-noise source) , or a noise source) to enhance or suppress the audio signal from that source. It is precisely because this basic principle of sound source localization technology w...

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Abstract

The invention discloses a noise suppression method and device and a mobile device. The method comprises the following steps: determining real-time position of the mobile device in a working environment; obtaining a fixed position of a noise source in the working environment; determining a relative position of the noise source with respect to the mobile device according to the real-time position and the fixed position; and controlling the mobile device to carry out suppression on a noise signal of the noise source according to the relative position. Therefore, the mobile device can eliminate the noise signal of the fixed noise source very well.

Description

technical field [0001] The present application relates to the field of signal processing, and more particularly relates to a noise suppression method, device, mobile device, computer program product, and computer-readable storage medium. Background technique [0002] In recent years, due to the rapid development of technologies such as computers, the Internet, and artificial intelligence, mobile devices with human-computer interaction functions have become more and more popular. In the mobile device's perception of the surrounding environment, image perception and audio perception are the two most important sources of information. Compared with image perception, audio perception needs to process a smaller amount of data, so it requires less computing power of the processor, and is more suitable for applications in the field of mobile devices. [0003] Usually, the main application scenario of audio perception is to accurately and quickly respond to audio-triggered events su...

Claims

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Application Information

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IPC IPC(8): H04R5/04
CPCH04R5/04
Inventor 陈本东张芊
Owner BEIJING HORIZON ROBOTICS TECH RES & DEV CO LTD
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