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

Audio frequency processing system and method

An audio processing and volume management technology, applied in electrical components, amplification control, gain control, etc., to solve problems such as loudness discomfort level, user hearing damage, etc.

Inactive Publication Date: 2007-03-14
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a physiological hearing limit for users, that is, the Loudness Discomfort Level (LDL). If the user's ears are exposed to an environment exceeding this loudness discomfort level for a long time, it will cause damage to the user's hearing.

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
  • Audio frequency processing system and method
  • Audio frequency processing system and method
  • Audio frequency processing system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] As shown in FIG. 1 , it is a structural diagram of the audio processing system in this embodiment. The audio processing system 1 includes a central processing unit 10, a storage unit 11, a decoding unit 12, a digital / analog converter 13, a volume control unit 14, an amplifier 15, an audio output device 16 and a volume management unit 17. The storage unit 11 stores a plurality of audio files, decoding programs and volume management programs. The central processing unit 10 controls the operation of each unit in the audio processing system 1 . The decoding unit 12 reads an audio file, decodes the audio file to generate a digital audio signal, and then transmits the digital audio signal to the D / A converter 13 . The D / A converter 13 converts the digital audio signal into an analog audio signal, and transmits the analog audio signal to the amplifier 15 . The volume control unit 14 sets a current volume control value. The amplifier 15 amplifies the analog audio signal acc...

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

This invention provides one audio process method, which comprises the following steps: reading one audio files and decoding files to generate one digital audio signals; getting one reset time section multiple vibration value for digital signal sampling and getting one current volume control values; computing reset time audio energy sum values according to the volume values and when volume achieves one default value, adjusting current volume control value. This invention provides one audio process system.

Description

【Technical field】 [0001] The invention relates to an audio processing system and method, in particular to a system and method for protecting hearing by managing the volume of the audio processing system. 【Background technique】 [0002] With the development of digital products, handheld audio playback devices are widely used. However, in a noisy environment, it will be difficult for the user to hear the desired audio signal, because the noise will cover the desired audio signal. [0003] In order to solve this problem, many volume control systems and methods have appeared on the market. For example, the patent application document US 2003 / 0123680 published by the United States Patent and Trademark Office on July 3, 2003 discloses a volume control system and method. The volume control system includes a loudspeaker, a volume control unit, a decoding unit, a user selection unit, a noise sensor, a volume setting table and a microcontroller; the volume control unit is used to ou...

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): H03G3/20
Inventor 李晓光谢冠宏
Owner HONG FU JIN PRECISION IND (SHENZHEN) 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