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

System, device and method for detecting terminal audio signal strength

An audio signal and testing terminal technology, which is applied in the transmission system, monitoring/monitoring/test arrangement, transmission monitoring, etc., can solve the problems of high cost and low accuracy of terminal audio signal strength test, so as to reduce the test cost and avoid subjective The effect of judging errors and improving test efficiency

Inactive Publication Date: 2007-06-27
HUAWEI TECH CO LTD
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a system, device and method for testing the strength of the terminal audio signal, so as to solve the defects in the prior art that the test accuracy of the terminal audio signal strength is not high, or the cost of using professional testing instruments is too high

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
  • System, device and method for detecting terminal audio signal strength
  • System, device and method for detecting terminal audio signal strength
  • System, device and method for detecting terminal audio signal strength

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention will be further described below with specific embodiments in conjunction with the accompanying drawings.

[0030] The invention provides a system, device and method for testing the strength of a terminal audio signal. Its theoretical basis is the concept of sound intensity in physics. The sound that the human ear usually hears refers to the audible sound waves of 20-20000 Hz. When the sound intensity reaches a certain level, it will cause the human ear to respond.

[0031] The unit of strength is watts / meter 2 (W / m 2 ), for human hearing, the more practical unit for sound intensity is decibel (dB), which reflects the intensity level, and its theoretical formula is:

[0032] L=10LOG(I / I 0 )

[0033] Among them, for the test terminal, I represents the theoretical value of the intensity current of the external load of the terminal, and I 0 In order to determine the reference intensity of the intensity level, the lowest intensity that can be heard...

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 system for test the intensity of terminal audio signal, including terminal, audio signal acquisition device and audio signal processing device. Among them, the terminal is used for broadcasting audio signals. Audio signal acquisition device collects the electric signals between the load of power amplifier and outside amplifier of terminal, and sends to the audio signal processing device, which gets the strength of the terminal audio signal according to the electric signals. The invention also discloses a method of testing the intensity of terminal audio signal by audio signal acquisition device and audio signal processing device. The application of this invention can avoid the subjective judgment error due to the difference of people's hearing when using hearing to test the terminal audio signals, thus it's more accurate for testing the audio intensity of terminal, raises the efficiency of test, and greatly reduces the testing cost compared with the professional test instrument.

Description

technical field [0001] The invention relates to the field of communication testing, in particular to a system, device and method for testing terminal audio signal strength. Background technique [0002] Audio testing is an extremely important test item in terminal testing, and usually includes testing of terminal audio signal quality and terminal audio signal strength. [0003] At present, the strength of the audio signal of the terminal is generally tested by the human ear or a sound pressure meter. The former conducts sound comparison tests of different software versions on the basis of the same hardware board of the terminal through hearing, or conducts benchmarking tests using voice terminal benchmarks; Test equipment for testing. Because the hearing of the human ear has inaccuracies determined by different subjects, and there are various error factors in the test environment and test instruments objectively, the above two methods for testing the audio signal strength ...

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): H04M3/22H04B17/00H04B17/318
Inventor 王苏明
Owner HUAWEI TECH 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