Broadcasting device which can sense noise and adjust volume automatically

A broadcasting device and automatic adjustment technology, applied in the field of sound reinforcement, can solve problems such as low signal-to-noise ratio, affect language clarity, and users can't hear clearly, so as to improve judicial fairness and justice, improve language clarity, and improve teaching effects Effect

Inactive Publication Date: 2018-06-08
江苏中协智能科技有限公司
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There is a long-term problem with indoor sound reinforcement systems. Because of different application scenarios, it is difficult to unify the volume. Too high volume will affect the user experience, and too low volume will affect the correct transmission of content, causing many people to "hear

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
  • Broadcasting device which can sense noise and adjust volume automatically
  • Broadcasting device which can sense noise and adjust volume automatically

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Such as figure 1 , Is a structural diagram of a broadcasting device that senses noise and automatically adjusts the volume. The noise sensor and music sensor respectively sense the noise and music of the playing environment. The judgment is based on the frequency characteristics of sound waves. If the frequency is irregular It is noise, and if the frequency is regular, it is judged as music.

[0032] The noise sensor and the musical sound sensor transmit the sensed noise and musical sound to the noise sound pressure calculator and musical sound pressure calculator respectively, and calculate the sound pressure level of the noise and musical sound by their frequency and amplitude.

[0033] When calculating sound pressure, it is necessary to understand the relationship between sound intensity (I) and sound intensity (P) and sound pressure. The sound intensity is proportional to the speed of the sound wave, the square of the angular frequency of the sound wave, and the square o...

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 broadcasting device which can sense noise and adjust volume automatically. The broadcasting device can automatically adjust the volume of the playing according to the sound pressure of the playing environment noise, so as to improve the signal to noise ratio of the whole broadcast system; wherein the process of sensing the sound pressure and adjusting the volume automatically is performed in a certain cycle, and the cycle can be self-defined; meanwhile, the signal to noise ratio in the device can be set in advance, and the value of the signal to noise ratio can be self-defined.

Description

technical field [0001] The invention relates to the field of sound reinforcement, in particular to a broadcasting device that senses noise and automatically adjusts volume. Background technique [0002] The indoor sound reinforcement system is one of the four types of sound reinforcement systems (the remaining three types are: hall sound reinforcement system, public address system and dedicated conference system), and the application scenarios of the indoor sound reinforcement system are also very common: a class in a school , dozens of students attend classes together; in some training institutions, a teacher "teaches small lessons" to a dozen students; [0003] There is a long-term problem with indoor sound reinforcement systems. Because of different application scenarios, it is difficult to unify the volume. If the volume is too high, it will affect the user experience, and if the volume is too low, it will affect the correct transmission of the content, causing many peop...

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): H04R27/00
CPCH04R27/00H04R2227/001
Inventor 不公告发明人
Owner 江苏中协智能科技有限公司
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