Method and device for improving stereo sound effect

A stereophonic, left-channel technology, applied in stereophonic circuit arrangements, single woofers, etc., can solve problems such as poor stereophony, short speaker distance, full and vigorous sound quality, and achieve the effect of improving stereophonic perception and enhancing the sense of space

Inactive Publication Date: 2017-08-11
广州天逸电子有限公司
View PDF11 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, as flat-panel TVs have become popular, and due to the rapid development of technology, the thickness of TVs is getting thinner and thinner. Although it brings people high-definition and ultra-thin visual enjoyment, it is getting thinner and thinner in terms of sound quality. The sound quality of CRT TVs is full and vigorous, and consumers cannot be satisfied with the enjoyment of hea

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
  • Method and device for improving stereo sound effect
  • Method and device for improving stereo sound effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for enhancing the perception of stereo including left and right sound channels.

[0030] Specifically, the difference between the left channel input signal and the right channel input signal after 180° phase inversion is compared to obtain the left difference signal, and the level of the left difference signal is adjusted and then inverted by 180° and superimposed on the right channel input signal Finally, it is used as the right channel output signal; the difference between the right channel input signal and the left channel input signal after 180° phase inversion is compared to obtain the right difference signal. The channel input signals are superimposed as the left channel output signal.

[0031] The present invention extracts the difference signal of one of the channels in stereo, and the difference signal is inverted 180° and then superimposed with the input signal of the other channel as the output signal of the other channel, so that it can offset the e...

Embodiment 2

[0036] The difference between this embodiment and Embodiment 1 lies in the way of performing reverberation processing on the left channel and the right channel. In this embodiment, performing reverberation processing on the left channel and the right channel: performing reverberation processing on the right filtered input signal and the 180° inverted left filtered input signal to obtain a reverberation signal, and The level of the reverberation signal is adjusted and superimposed on the output signal of the right channel. In addition, the level of the reverberation signal is adjusted and then inverted by 180°, and then superimposed on the output signal of the left channel.

Embodiment 3

[0038] Such as figure 1The shown device for enhancing the sense of stereo is Embodiment 3 of the present invention, which includes a left sound channel 10 , a right sound channel 20 , a left adder 15 and a right adder 25 .

[0039] Left sound channel 10 is provided with left signal input end 11 and left signal output end 2, and left signal input end 11 is connected with left adder 15 input ends, and left adder 15 output end is connected with left signal output end 12, and right sound channel 20 A right signal input terminal 21 and a right signal output terminal 22 are provided, the right signal input terminal 21 is connected to the input terminal of the right adder 25 , and the output terminal of the right adder 25 is connected to the right signal output terminal 22 .

[0040] The present invention also includes a left difference processing module 13 and a right difference processing module 23 .

[0041] The left difference processing module 13 is provided with two input term...

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

A method for improving the sense of stereo, which includes a left channel and a right channel; the left channel input signal is compared with the right channel input signal after phase inversion by 180° to obtain a left difference signal, and the left difference signal is phase inverted by 180° ° After being superimposed with the right channel input signal, it is used as the right channel output signal; the difference between the right channel input signal and the left channel input signal after 180° phase inversion is compared to obtain the right difference signal, and the right difference signal is inverted 180° After being superimposed with the input signal of the left channel, it becomes the output signal of the left channel. The present invention extracts the difference signal of one of the channels in stereo, and the difference signal is inverted by 180° and superimposed with the input signal of the other channel as the output signal of the other channel. The sound of one of the channels can be heard by the ear, so as to improve the stereo sense of the speaker product; at the same time, adding appropriate reverberation sound to the left and right channels can enhance the sense of space of the sound.

Description

technical field [0001] The invention relates to the technical field of sound boxes, in particular to a method and a device for improving the sense of stereo. Background technique [0002] With the development of science and technology, more and more technological products have entered people's lives and profoundly affected our way of life. Such as mobile phones, computers, speakers and other digital products. In particular, with the development of audio-visual technology, portable speaker products with small size, powerful functions and low power consumption are becoming more and more popular, especially favored by young people, and gradually become a consumer fashion. Moreover, the functionality of portable speaker products is gradually enhanced, and the volume is getting smaller and smaller. Although the sound quality is limited by the volume, the sound quality of today's portable speakers is better than before. In addition, as flat-panel TVs have become popular, and due...

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
IPC IPC(8): H04R5/04
CPCH04R5/04H04R2205/026
Inventor 李智黎双华
Owner 广州天逸电子有限公司
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