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Howling suppression method and device, equipment and storage medium

A technology of terminals and operation instructions, applied in the field of communication, can solve the problems of unable to completely suppress howling, howling again, unable to obtain howling points, etc.

Pending Publication Date: 2020-09-15
CHENGDU TD TECH LTD
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Problems solved by technology

[0005] The present invention provides a howling suppression method, device, equipment and storage medium, aiming to solve the problem that the existing howling suppression method cannot accurately obtain the howling point according to the sound waveform, and then the howling cannot be completely suppressed, and another howling occurs called question

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  • Howling suppression method and device, equipment and storage medium
  • Howling suppression method and device, equipment and storage medium
  • Howling suppression method and device, equipment and storage medium

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Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0048] The present invention provides a howling suppression method, device, equipment, and storage medium, aiming to solve the problem that the existing howling suppression method cannot accurately obtain the howling point according to the sound waveform, and then the howling cannot be completely suppressed, and another howling occurs The que...

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Abstract

The invention provides a howling suppression method and device, equipment and a storage medium. The howling suppression method comprises the following steps: after a terminal runs a preset attenuationprogram, if howling is detected again, running the preset attenuation program again according to an obtained first operation instruction, and performing attenuation processing on a sound signal againaccording to a howling signal currently received by the terminal so as to reduce the amplitude of the sound signal. According to the howling suppression method, after a terminal runs a preset attenuation program, if the occurrence of the howling is detected again, the preset attenuation program operates again according to the obtained first operation instruction, so that the terminal performs attenuation processing on the sound signal again according to the currently received howling signal to reduce the amplitude of the sound signal, and the preset attenuation program is repeated to completely suppress the howling phenomenon.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a howling suppression method, device, equipment and storage medium. Background technique [0002] Industrial terminals usually work in the external speaker mode, and the uplink and downlink volume gains are relatively large. After the sound is amplified by the loop gain, the energy continues to accumulate and form howling, which seriously affects the normal use of voice services. [0003] In order to improve the perceived comfort of customers, the following methods are used in the prior art to suppress howling: detect the downlink data waveform, and filter the howling point from the downlink data waveform, when the howling point is detected, the howling point The amplitude of the frequency is suppressed, and the overall amplitude of the downlink sound wave is suppressed to achieve the suppression of howling. [0004] However, due to the distortion of the termi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L25/51G10L25/78G06F3/0488
CPCG10L25/51G10L25/78G06F3/04883G10L2025/783
Inventor 徐本凤张跃斌张勇
Owner CHENGDU TD TECH LTD
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