Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Apparatus and method of automatically compensating an audio volume in response to channel change

By comparing the average sound level of the audio signal with the predetermined sound level curve, adjusting the gain value and processing the dynamic range, it solves the problem of volume changes in the traditional audio signal processing system when the channel changes, achieving stable reproduction of the audio signal and less distortion. .

Inactive Publication Date: 2006-01-25
SAMSUNG ELECTRONICS CO LTD
View PDF1 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that the audio volume of the output audio signal Y(n) hardly changes

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
  • Apparatus and method of automatically compensating an audio volume in response to channel change
  • Apparatus and method of automatically compensating an audio volume in response to channel change
  • Apparatus and method of automatically compensating an audio volume in response to channel change

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Reference will now be made in detail to the embodiments of the present general inventive concept, examples of which are illustrated in the accompanying drawings, wherein like numerals refer to like parts throughout. The embodiments are described below in order to explain the present general inventive concept by referring to the figures.

[0028] Image 6 is a block diagram illustrating an apparatus for automatically compensating audio volume in response to a channel change according to an embodiment of the present general inventive concept.

[0029] refer to Image 6 , the device comprises a first audio volume compensator 600-1, which adjusts the sound level of the input audio signal X(n); a second audio volume compensator 600, which adjusts the dynamic range of the input audio signal X(n); the first A multiplier 690, which multiplies the first gain value adjusted by the first audio volume compensator 600-1 with the input audio signal X(n); a delay unit 640, which out...

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 present invention provides an apparatus and method of automatically compensating audio volume in response to a channel change. The method includes generating a gain value to adjust a level of an input audio signal by comparing an average level of the input audio signal with a predetermined input / output level curve, adjusting an audio volume of the input audio signal by applying the generated gain value to the level of the input audio signal, and adjusting a dynamic range of the audio signal having the adjusted audio volume.

Description

[0001] This application claims priority from Korean Patent Application No. 2004-57918 filed with the Korean Intellectual Property Office on Jul. 24, 2004, which is hereby incorporated by reference. technical field [0002] The present general inventive concept relates to an audio signal processing system, and more particularly, to an apparatus and method for automatically compensating audio volume in response to channel changes. Background technique [0003] The functions of TV receivers have become more diverse and complex. In order to select a broadcast channel in a conventional TV receiver, a user has to confirm a screen state by manually changing a broadcast channel. In more recent TV receivers, the user can automatically search for consecutive broadcast channels of receivable frequency bands. [0004] However, when the user changes the broadcasting channel, the audio sound level of the broadcasting channel may be slight...

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): H04N5/60
CPCH04N5/602H03G11/008H03G3/301H04H40/18H04R3/00H04H60/43H03G7/007H04N21/439H04N21/44016H04N5/60
Inventor 吴润学金承勋
Owner SAMSUNG ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com