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Signal processing method, electronic equipment, terminal equipment and earphone

A signal processing circuit and signal processing technology, applied in the fields of terminal equipment and earphones, signal processing methods, and electronic equipment, can solve the problems of high signal noise and poor signal quality, so as to improve the quality, reduce the noise and the sound played by the speaker. Effect

Pending Publication Date: 2022-04-12
ALIBABA DAMO (HANGZHOU) TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of using the microphone to collect sound signals, the microphone can not only collect sound signals, but also collect mechanical waves caused by the structural vibration of the microphone. If the speaker is relatively close to the microphone, it will also collect the sound signal played by the speaker, which makes the microphone The collected signal has a lot of noise and the signal quality is poor

Method used

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  • Signal processing method, electronic equipment, terminal equipment and earphone
  • Signal processing method, electronic equipment, terminal equipment and earphone
  • Signal processing method, electronic equipment, terminal equipment and earphone

Examples

Experimental program
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Embodiment 1

[0018] Embodiment 1 of the present application provides a signal processing method that is applied to terminal equipment. For ease of understanding, the application scenario of the signal processing method provided in Embodiment 1 of the present application is described. Refer to figure 1 as shown, figure 1 It is a schematic diagram of a scene of a signal processing method provided in Embodiment 1 of the present application. figure 1 The illustrated scene includes an electronic device 101 and a user 102 .

[0019] The electronic device 101 includes a signal processing circuit board 1011 , a speaker 1012 , a microphone 1013 , a first accelerometer 1014 and a second accelerometer 1015 .

[0020] figure 1 The scene shown can be a conference room. When the user speaks, the microphone will collect the sound wave of the user's voice. At the same time, the microphone will also collect the environmental vibration noise caused by structural vibration and the sound wave emitted by the...

Embodiment 2

[0038] Based on the method described in Embodiment 1 above, Embodiment 2 of the present application provides an electronic device for performing the method described in Embodiment 1 above. Refer to image 3 As shown, the electronic device 30 includes:

[0039] Signal processing circuit board 301, speaker 302, microphone 303, first accelerometer 304 and second accelerometer 305;

[0040] Wherein, the signal processing circuit board 301 is electrically connected with the speaker 302, the microphone 303, the first accelerometer 304, and the second accelerometer 305 respectively;

[0041] The microphone 303 is used to collect environmental vibration noise and sound waves to obtain signals to be processed, and transmit the signals to be processed to the signal processing circuit board 301;

[0042] The first accelerometer 304 is used to collect mechanical waves caused by the structural vibration of the microphone to obtain a first reference signal, and transmit the first reference...

Embodiment 3

[0050] Based on the method described in Embodiment 1 and the electronic device described in Embodiment 2, Embodiment 3 of the present application provides a terminal device for performing the method described in Embodiment 1. Refer to Figure 4 As shown, the terminal device 40 includes: the electronic device 30 as described in the second embodiment, and a communication module 401 ; the communication module 401 is electrically connected to the signal processing circuit board 301 of the electronic device 30 .

[0051] Here, a specific application scenario is given for description. Optionally, as in Figure 5 as shown, Figure 5 It is a schematic diagram of an application scenario provided in Embodiment 3 of the present application, Figure 5 Two terminal devices are shown, namely a first terminal device 501 and a second terminal device 502, and a cloud 503 is also shown, and both the first terminal device 501 and the second terminal device 502 access the cloud 503 through the ...

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PUM

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Abstract

The embodiment of the invention provides a signal processing method, electronic equipment, terminal equipment and an earphone, and the method comprises the steps: collecting environment vibration noise and sound waves through a microphone, and obtaining a to-be-processed signal; acquiring a mechanical wave caused by the structural vibration of the microphone by using a first accelerometer to obtain a first reference signal; acquiring a mechanical wave output by the loudspeaker by using a second accelerometer to obtain a second reference signal; and performing signal optimization on the to-be-processed signal by using the first reference signal and the second reference signal to obtain a to-be-output signal. Because the accelerometer can collect mechanical waves caused by structural vibration and cannot collect sound waves, the first accelerometer is used for collecting mechanical waves caused by structural vibration of the microphone, and the second accelerometer is used for collecting mechanical waves output by the loudspeaker. Therefore, noise caused by structural vibration of the microphone and sound played by the loudspeaker can be reduced, and the quality of signals acquired by the microphone is improved.

Description

technical field [0001] The embodiments of the present application relate to the field of electronic information technology, and in particular, to a signal processing method, electronic equipment, terminal equipment, and earphones. Background technique [0002] In many application scenarios, such as voice calls, video conferences, etc., it is necessary to use a microphone to collect sound signals, and then transmit or play them. In the process of using the microphone to collect sound signals, the microphone can not only collect sound signals, but also collect mechanical waves caused by the structural vibration of the microphone. If the speaker is relatively close to the microphone, it will also collect the sound signal played by the speaker, which makes the microphone The collected signal has a lot of noise and the signal quality is poor. Contents of the invention [0003] In view of this, embodiments of the present application provide a signal processing method, electroni...

Claims

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Application Information

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IPC IPC(8): H04R1/10G10K11/178
Inventor 韩磊姜南李瑞
Owner ALIBABA DAMO (HANGZHOU) TECH CO LTD