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Howling suppression method, device, amplifying device, and storage medium for amplifying equipment

A suppression device and equipment technology, which is applied in active noise cancellation hearing devices, electric loudspeakers, transducer sound response prevention, etc., can solve acoustic howling, damage to audio equipment, interference with audio system acquisition and transmission quality, etc. problem, achieve the effect of reducing feedback interference and suppressing howling

Active Publication Date: 2022-07-08
深圳市技湛科技有限公司
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Problems solved by technology

However, in the application environment where the microphone and the loudspeaker coexist, when the excessive acoustic signal passes through the acoustic loop with positive feedback, self-excitation will occur, resulting in acoustic howling, which seriously interferes with the audio system’s acquisition and transmission quality. It will damage the audio equipment and even cause certain hearing loss to the listener

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

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Embodiment Construction

[0032] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0033] like figure 1 shown, figure 1 It is a schematic structural diagram of a hardware operating environment of a sound amplification device related to the solution of the embodiment of the present invention.

[0034] like figure 1 As shown, the loudspeaker device may include: a processor 1001 , such as a CPU, a network interface 1004 , a user interface 1003 , a memory 1005 (specifically, the above-mentioned storage device), and a communication bus 1002 . Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. Optionally, the network i...

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Abstract

The invention discloses a howling suppression method, a device, a sound amplification device and a storage medium for amplifying equipment. The howling suppression method for the sound amplification equipment is applied to the sound amplification equipment. The howling suppression method for the sound amplification equipment includes: Acquiring a speech signal to be amplified; performing sound field estimation on the speech signal through a preset adaptive filter to output a reference signal fed back to the amplifying device for howling suppression. The present invention estimates the feedback path of the sound field through the adaptive filter, which can realize the mutual cancellation of the artificially generated speech signal to be amplified and the reference signal actually fed back by the filter, thereby effectively reducing the feedback interference of the sound field and achieving the purpose of suppressing howling .

Description

technical field [0001] The present invention relates to the technical field of memory, and in particular, to a method and device for suppressing howling of a sound amplification device, a sound amplification device and a computer storage medium. Background technique [0002] Amplification equipment is an important part of the audio system and is widely used in audio equipment, audio communication, hearing aids and other audio systems. However, in the application environment where the microphone and the loudspeaker coexist, when the excessively large acoustic signal passes through the acoustic loop with positive feedback, it will generate self-excitation, resulting in acoustic howling, which seriously interferes with the acquisition and transmission quality of the audio system. It will damage the audio equipment and even cause some hearing damage to the listener. SUMMARY OF THE INVENTION [0003] The main purpose of the present invention is to provide a howling suppression...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/02H04R27/04
CPCH04R3/02H04R27/04H04R2460/01
Inventor 陈敬海吴景田李静
Owner 深圳市技湛科技有限公司
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