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Audio signal gain adjustment method and device, terminal equipment and audio system

An audio signal and gain adjustment technology, applied in the direction of gain control, sensor parts, sensors, etc., can solve the problems of frequently adjusting MIC gain, achieve the effect of improving user experience, reducing frequency, and ensuring stability

Pending Publication Date: 2020-06-09
SHENZHEN HONGHE INNOVATION INFORMATION TECH CO LTD
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Problems solved by technology

[0005] In view of this, the embodiment of the present application provides an audio signal gain adjustment method, device, terminal equipment and audio system to solve the problem that the current gain adjustment method frequently adjusts the MIC gain

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  • Audio signal gain adjustment method and device, terminal equipment and audio system
  • Audio signal gain adjustment method and device, terminal equipment and audio system
  • Audio signal gain adjustment method and device, terminal equipment and audio system

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Embodiment Construction

[0036] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0037] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude one or more other features. , whole, step, operation, element, component and / or the presence or addition of a collection thereof.

[0038] It shou...

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Abstract

The invention is suitable for the technical field of audio signal processing, and provides an audio signal gain adjustment method and device, terminal equipment and an audio system, and the audio signal gain adjustment method comprises the steps: obtaining the distance between a sound source and audio acquisition equipment, and taking the distance as a first distance; adjusting the gain of an audio signal according to the first distance; after the gain of the audio signal is adjusted, acquiring the distance between the sound source and the audio acquisition equipment is acquired again as a second distance; obtaining a difference value between the first distance and the second distance; comparing the difference value with a threshold value; if the difference value is less than or equal to the threshold value, showing the distance between the sound source and the audio acquisition equipment is not greatly changed, and not adjusting the gain of the audio signal according to the second distance. Frequent adjustment of the gain of the audio signal is avoided, especially frequent adjustment of the gain when the distance between the sound source and the audio acquisition equipment wandersback and forth between two adjacent adjustment range boundaries is avoided, the audio is further prevented from fluctuating, the audio output stability is guaranteed, and the user experience is improved.

Description

technical field [0001] The present application belongs to the technical field of audio signal processing, and in particular relates to an audio signal gain adjustment method, device, terminal equipment and audio system. Background technique [0002] Nowadays, there are more and more voice interactions, and MIC (Microphone, microphone), as a collection device at the front end of voice interaction, is one of the most important parts, which directly affects the quality of audio information and the user experience. [0003] When conducting a remote conference in an office, the distance between the user (that is, the sound source) and the MIC is not constant. However, the audio signal sent by the user collected by the MIC will become smaller and smaller as the distance between the user and the MIC is getting farther and farther away. However, the main controller that receives the audio signal will not automatically adjust the gain of the audio signal as it changes, which may cau...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03G3/30H04R3/00
CPCH03G3/3005H03G3/3089H04R3/00
Inventor 周勇
Owner SHENZHEN HONGHE INNOVATION INFORMATION TECH CO LTD
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