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Audio signal processing system based on MIC array

An audio signal processing and array technology, which is applied in the field of audio signal processing system based on MIC array, can solve the problem of loud speaker sound, etc., and achieve the effect of improving the sound quality of the transmission

Pending Publication Date: 2020-03-31
SHENZHEN ENQUALCOMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One disadvantage of this type of application is that the sound of the speaker will be relatively loud, and the sound will be absorbed by the built-in MIC, causing the other party to hear their own echo

Method used

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  • Audio signal processing system based on MIC array
  • Audio signal processing system based on MIC array
  • Audio signal processing system based on MIC array

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Embodiment Construction

[0018] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] It should be noted that relative terms such as "first", "second" and so on may be used to describe various components, but these terms do not limit the components. These terms are only used to distinguish one component from another. For example, without departing from the scope of the present invention, a first component may be called a second component, and a second component may similarly be called a first component. The term "and / or" refers to any one or more combination of related items and described items.

[0020] like figure 1 as shown, figure 1 It is a functional block diagram of the audio signal processing system based on the MIC array of the present invention; an audio signal processing system based on the MIC array of the present invention includes a MIC array module 30, a processor chip 40, an an...

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PUM

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Abstract

The invention discloses an audio signal processing system based on an MIC array. The system comprises an MIC array module, a processor chip, an analog audio processing chip, and an AD conversion circuit, a DA conversion circuit, a loudspeaker and a loudspeaker recovery circuit which are connected with the MIC array module. The loudspeaker recovery circuit is connected with the processor chip through the AD conversion circuit, the processor chip is connected with the analog audio processing chip through the DA conversion circuit, and the loudspeaker is simultaneously connected with the horn recovery circuit and the analog audio processing chip. According to the invention, the echo problem existing in a high-volume hands-free call is effectively solved, and meanwhile, the MIC array is adopted for reception, so the tone quality of the sent call can be obviously improved.

Description

technical field [0001] The invention belongs to the technical field of audio processing, and in particular relates to an audio signal processing system based on an MIC array. Background technique [0002] At present, there are many scenarios in real life that require hands-free calls. For example, when the hands are inconvenient, the hands-free call is turned on on the mobile phone; when the smart speaker is called, only the speaker is used for the call; children's watches are also worn because of the form, only the speaker is used for the call; There's pre-installed on-board Bluetooth, too, for calls over the speaker. One disadvantage of this type of application is that the sound of the speaker will be relatively loud, and the sound will be absorbed by the built-in MIC, causing the other party to hear their own echo. Therefore, there is an urgent need for a control circuit that can avoid echoes during calls. Contents of the invention [0003] The main purpose of the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0216
CPCG10L21/0216G10L2021/02082G10L2021/02166
Inventor 刘宏涛梁辉
Owner SHENZHEN ENQUALCOMM TECH CO LTD
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