Sound processing method and device for loudspeaker and mobile terminal

A sound processing and speaker technology, applied in the direction of speaker distribution signal, signal processing, electrical components, etc., can solve the problems of affecting user experience and poor stereo enhancement effect

Active Publication Date: 2018-10-09
SPREADTRUM COMM (SHANGHAI) CO LTD
View PDF6 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing stereo enhancement methods for mobile terminals still have the problem of poor stereo enhancement effect, which affects the user experience.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sound processing method and device for loudspeaker and mobile terminal
  • Sound processing method and device for loudspeaker and mobile terminal
  • Sound processing method and device for loudspeaker and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] At present, the mobile terminal has developed from the most basic voice communication device to an intelligent mobile terminal with multiple functions. People also have higher and higher requirements for the multimedia functions of mobile terminals, especially the sound quality of sound playback. Many mobile terminals have proposed and adopted Hi-Fi stereo sound technology, but this technology is mainly for the playback of mobile terminal earphones. The external speaker devices of most mobile terminals still use a single speaker, and a single speaker can only play a mono signal, and the sound is single without stereo effect.

[0044] In order to improve the stereo playback effect, some mobile terminals are provided with dual speakers in the external speakers, so as to increase the loudness of the external speakers. When the mobile terminal is placed horizontally to play sound, the sound signals output by the dual speakers can also produce a certain stereo effect in both...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a sound processing method and device for a loudspeaker and a mobile terminal. The sound processing method comprises the steps of respectively performing stereo broadening processing on an input left channel stereo signal and right channel stereo signal to obtain a first left channel signal and a first right channel signal; performing crosstalk cancellation on the first left channel signal and the first right channel signal to obtain a second left channel signal and a second right channel signal with the crosstalk being cancelled; respectively performing frequency response adjustment on the second left channel signal and the second right channel signal with the crosstalk being cancelled to obtain a stereo enhanced left channel signal and right channel signal; and outputting the obtained stereo enhanced left channel signal and right channel signal through corresponding loudspeakers. The scheme of the invention can enhance the stereo effect of the signals outputted by the loudspeaker and improve the user experience.

Description

technical field [0001] The present invention relates to the technical field of sound processing, in particular to a sound processing method, device and mobile terminal of a loudspeaker. Background technique [0002] A speaker is a transducer device that converts an electrical signal into an acoustic signal, and its performance has a great influence on the sound quality. With the popularization of portable multimedia devices such as mobile terminals, people have higher and higher requirements for multimedia functions of mobile terminals, especially for sound quality of sound playback. [0003] In order to enhance the stereo sound effect of the speaker of the mobile terminal, the external speaker of the mobile terminal and the like adopts dual speakers, so as to increase the loudness of the external sound. [0004] However, the existing stereo enhancement methods for mobile terminals still have the problem of poor stereo enhancement effect, which affects user experience. Co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/12
CPCH04R3/12H04R2430/00
Inventor 陈喆蒋斌纪伟董斐林福辉
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap