Unlock instant, AI-driven research and patent intelligence for your innovation.

A real-time audio signal processing method for sound reinforcement system

A sound reinforcement system, audio signal technology, applied in the direction of sound reinforcement system, speech analysis, instruments, etc., can solve the problem of unfavorable real-time audio data processing, etc., to achieve the effect of reducing system processing time and improving real-time performance

Active Publication Date: 2022-07-22
成都千立网络科技有限公司
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned serial processing method of traditional technology is not conducive to improving the real-time processing of audio data

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
  • A real-time audio signal processing method for sound reinforcement system
  • A real-time audio signal processing method for sound reinforcement system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] In this embodiment, three threads are used to process data of three stages of audio data respectively, and data sharing among the three threads is realized by means of a queue, so as to achieve real-time processing of audio data. The principle is as figure 1 As shown, the three threads are: data acquisition thread, audio processing thread, and data transmission thread; the details are as follows:

[0023] The data acquisition thread is mainly responsible for acquiring the data converted by the ADC converter, and then putting it into a data queue Q1, and then the thread sends a signal to Signal1 to notify the audio processing thread to acquire data from the queue Q1.

[0024] Audio processing thread, after the thread obtains the notification signal Signal1 of the data acquisition thread, it obtains data from the data queue Q1, and then performs some processing on the audio data (such as noise reduction, increase gain, etc.), and sends the audio data after the processing ...

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 relates to an audio signal processing technology, and discloses a real-time audio signal processing method of a sound reinforcement system, which effectively improves the real-time performance of the audio signal processing of the sound reinforcement system. The method includes: starting three threads to perform parallel processing of audio data in three processing stages in a sound reinforcement system: a data acquisition thread is used to acquire the data converted by the ADC converter, put it into a first data queue, and Notify the audio processing thread to acquire data from the first data queue; the audio processing thread is used to acquire data from the first data queue for audio data processing after receiving the notification from the data acquisition thread, and put the processed audio data into the first data queue. In the second data queue, and then notify the data sending thread to obtain data from the second data queue; the data sending thread is used to obtain data from the second data queue after receiving the notification from the audio processing thread, and send the data to the DAC converter to convert.

Description

technical field [0001] The invention relates to an audio signal processing technology, in particular to a real-time audio signal processing method of a sound reinforcement system. Background technique [0002] In some scenarios, such as conferences, school teaching scenarios, etc., if the speaker's voice cannot cover all areas, then the assistance of a sound reinforcement system is required. After the speaker's voice is picked up by a microphone, it passes through a processing device. , do some processing on the audio data, and then amplify it through the power amplifier, and play the sound through the speaker, so as to achieve the effect of enhancing the speaker's voice intensity. [0003] The processing device obtains the data of the microphone generally by sampling the audio analog signal into a digital signal through an audio ADC converter. After the processing device obtains the sampled digital signal, it performs some processing on the audio data, and then passes an au...

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 Patents(China)
IPC IPC(8): H04R27/00G10L21/02
CPCH04R27/00G10L21/02H04R2227/009
Inventor 吴道远迟景立
Owner 成都千立网络科技有限公司