Acoustic amplification system howling point detection method based on neural network

A technology of neural network and sound reinforcement system, applied in the field of howling point detection of sound reinforcement system based on neural network, can solve the problems of missed judgment, misjudgment of howling point, inability to accurately track and detect howling point, etc., to achieve Overcome misjudgment, improve the effect of use, and strengthen the effect of self-learning function

Inactive Publication Date: 2020-08-11
成都千立网络科技有限公司
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to propose a neural network-based sound reinforcement system howling point detection method to solve the misjudgment and missed judgment of the howling point in the traditional technology, and the inability to accurately track and detect howling point of question

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  • Acoustic amplification system howling point detection method based on neural network
  • Acoustic amplification system howling point detection method based on neural network
  • Acoustic amplification system howling point detection method based on neural network

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Embodiment Construction

[0021] The present invention aims to propose a method for detecting howling points of a sound reinforcement system based on a neural network, so as to solve the problems of misjudgment and missed judgment of howling points and the inability to accurately track and detect howling points in the traditional technology. Its core idea is: train the defined neural network model through a large number of collected sample data, obtain the howling point recognition model, and apply the howling point recognition model to the actual howling point recognition and tracking of audio data, so as to quickly , Accurately detect howling points.

[0022] In specific implementation, the howling point detection method process of the neural network based sound reinforcement system in the present invention is as follows figure 1 As shown, it includes the following implementation steps:

[0023] 1. Collect audio data and perform FFT conversion to mark howling frequency points to form sample data;

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Abstract

The invention relates to an audio signal processing technology, discloses a sound amplification system howling point detection method based on a neural network, and solves the problems of misjudgmentand missed judgment of a howling point and incapability of accurately tracking and detecting the howling point in the traditional technology. The method comprises the following steps: a, acquiring audio data, performing FFT conversion, and marking howling frequency points to form sample data; b, training a defined neural network model based on the sample data to obtain a howling point recognitionmodel; c, in practical application, taking the frequency domain data of the audio data to be processed after FFT conversion as input, and outputting a howling point frequency identification result through a howling point identification model.

Description

technical field [0001] The invention relates to an audio signal processing technology, in particular to a method for detecting howling points of a sound reinforcement system based on a neural network. Background technique [0002] In some scenarios, such as conferences, school teaching scenes, etc., if the speaker's voice cannot cover all areas, the assistance of a sound reinforcement system is needed at this time. After the speaker's voice is picked up by a microphone, it passes through a processing device. After doing some processing on the audio data, it is amplified by the power amplifier, and the sound is played out through the sound box, so as to achieve the effect of enhancing the speaker's voice intensity. [0003] A common problem faced by the sound reinforcement system is howling. The reason for howling is that the sound is picked up by the microphone and enters the sound reinforcement system, and then the sound is output to the power amplifier through the sound re...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R29/00G10L25/18G10L25/30G10L25/78
CPCG10L25/18G10L25/30G10L25/78H04R29/001
Inventor 吴道远迟景立
Owner 成都千立网络科技有限公司
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