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

Sound recovering method based on loudness adjustment and control

A technology of loudness and sound, which is applied in the field of sound restoration based on loudness control, and can solve problems such as unrealistic restoration

Inactive Publication Date: 2014-06-25
刘海东
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a sound restoration method based on loudness regulation, aiming to solve the problem of unreal sound restoration under weak or other circumstances

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 recovering method based on loudness adjustment and control
  • Sound recovering method based on loudness adjustment and control
  • Sound recovering method based on loudness adjustment and control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] In order to make the purpose, technical solution and advantages of the present invention clearer, further detailed description will be given below in conjunction with the accompanying drawings and embodiments.

[0015] Such as figure 1 As shown, a sound restoration method based on loudness regulation, including the pre-preparation stage and the implementation stage, is as follows:

[0016] S1: Pre-preparation stage, including the following steps:

[0017] S11: Divide the loudness within the predetermined range into multiple units; the unit division can be in units of decibels, bels, and sones. Taking decibels as an example, the predetermined range can be set to 0 to 150 decibels, and 1 to 3 Decibels are divided into one unit. In this embodiment, 1 decibel is preferably used as a unit, and the range from 0 to 150 decibels is divided into a total of 150 units of the first unit, the second unit, ..., the 150th unit from weak to strong The unit can also be understood to b...

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 discloses a sound recovering method based on loudness adjustment and control. The sound recovering method includes the steps that loudness in a preset range is divided into units, a frequency response curve corresponding to the loudness in each unit is measured, and all the frequency response curves are adjusted to obtain adjustment parameters; an audio signal is detected, the concrete unit where the loudness of the audio signal is located is determined, and the corresponding adjustment parameters are called according to the concrete unit where the loudness of the audio signal is located. Through parameter adjustment, the different frequency response curves are adjusted according to different loudness, so that audio output with any loudness always has a good fidelity effect.

Description

[technical field] [0001] The invention relates to the field of audio processing, in particular to a sound restoration method based on loudness control. [Background technique] [0002] With people's demand for high-quality music, the requirements for audio equipment are getting higher and higher. However, under the constraints of many factors such as cost, materials, and craftsmanship, most of the audio equipment on the market today is of poor quality. We all know that there are multiple factors that affect the sound effect, such as frequency response, signal-to-noise ratio, and distortion. The high and low frequencies are severely distorted and the experience is not good. In order to solve this problem, the method in the prior art is to adjust a frequency response curve with a fixed loudness output, so as to ensure that the sound is not distorted at the maximum and the frequency response is very good. But, the inventor finds that there is following defect in above-mentione...

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): H04R1/20
Inventor 刘海东
Owner 刘海东
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