Signal processing method and device and loudspeaker

A signal processing and signal technology, applied in the field of information, can solve the problems of the overall volume of the speaker, and achieve the effect of increasing the overall volume and improving the overall volume.

Pending Publication Date: 2019-01-04
SHANGHAI AWINIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a signal processing method, device and speaker to solve the problem that the overall volume of the speaker will be affected after the input audio source signal is processed in the prior art

Method used

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  • Signal processing method and device and loudspeaker
  • Signal processing method and device and loudspeaker
  • Signal processing method and device and loudspeaker

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Experimental program
Comparison scheme
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Embodiment 1

[0057] refer to figure 1 , which shows a flow chart of a signal processing method according to an embodiment of the present invention, including the following steps:

[0058] Step S101: Filtering the audio input signal Vin to obtain a low-frequency signal Vi1 and a high-frequency signal Vi2.

[0059] It should be noted that the frequency range of the sound effect signal is 20Hz to 20KHz.

[0060] In the embodiment of the present invention, the frequency of the high-frequency signal is defined as between 2KHz and 20KHz, and the frequency of the low-frequency signal is defined as between 20Hz and 2KHz.

[0061] When step S101 is executed, the following processing methods are included:

[0062] performing high-pass filtering on the sound source input signal Vin to obtain a high-frequency signal Vi2;

[0063] Low-pass filtering is performed on the audio input signal Vin to obtain a low-frequency signal Vi1.

[0064] The above-mentioned high-pass filtering and low-pass filterin...

Embodiment 2

[0096] Corresponding to the signal processing method provided by the foregoing embodiment of the present application, the embodiment of the present application further provides a corresponding signal processing apparatus. Such as Figure 5 As shown, it is a signal processing device disclosed in Embodiment 2 of the present application, and the signal processing device includes:

[0097] A filtering module 501 , a high frequency signal processing module 502 , a low frequency signal processing module 503 and a signal synthesis module 504 .

[0098] The filtering module 501 is configured to filter the sound source input signal Vin to obtain a low-frequency signal Vi1 and a high-frequency signal Vi2, and transmit the low-frequency signal Vi1 to the low-frequency signal processing module, and convert the high-frequency signal Vi2 transmitted to the high-frequency signal processing module 504.

[0099] The low-frequency signal processing module 503 is configured to determine a gain...

Embodiment 3

[0118] Corresponding to the signal processing method and device embodiments provided in the foregoing embodiments of the present application, the embodiments of the present application further provide a corresponding loudspeaker. Such as Figure 7 , is a loudspeaker disclosed in Embodiment 3 of the present application, and the loudspeaker includes:

[0119] A signal processing device 701 , a digital-to-analog converter 702 , an audio amplifier module 703 and a speaker 704 .

[0120] The signal processing device 701 is the signal processing device provided in the second embodiment, which is used to filter the sound source input signal Vin to obtain the low-frequency signal Vi1 and the high-frequency signal Vi2, and transmit the low-frequency signal Vi1 to the low-frequency signal processing module, and convert the high-frequency signal Vi1 to the low-frequency signal processing module. The signal Vi2 is transmitted to the high-frequency signal processing module, and the low-fr...

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Abstract

The invention discloses a signal processing method and device and a loudspeaker. The signal processing method comprises the steps: filtering a sound source input signal so as to obtain a low-frequencysignal and a high-frequency signal, wherein a gain output signal can be obtained by performing gaining and delaying on the low-frequency signal, and a loudness output signal can be obtained by performing dynamic range control, delaying and loudness control on the high-frequency signal; finally combining the gain output signal and the loudness output signal; and finally outputting the required audio signal. According to the audio signal processing method, the diaphragm displacement of the loudspeaker can be limited and the overall sound volume can be improved.

Description

technical field [0001] The invention relates to the field of information technology, in particular to a signal processing method, device and loudspeaker. Background technique [0002] The horn is a conversion device that converts electrical energy into sound. When different electronic energies are transmitted to the coil, the coil generates energy and interacts with the magnetic field of the magnet. This interaction causes the paper plate to vibrate, and the coil of the horn will move forward or backward. Due to the change of electronic energy, the paper plate of the speaker will move with the change of electronic energy. These actions will change the density of the air and produce sound. [0003] Because when the horn drives the air-sounding device through the vibration of the internal diaphragm, the failure rate of the horn will increase and the service life will decrease. In the prior art, gain control is performed on the input sound source signal, and the vibration ampl...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2420/03
Inventor姚炜蒋松鹰朱马
OwnerSHANGHAI AWINIC TECH CO LTD