A multi-segment dynamic range control method, system and loudspeaker

A technology of dynamic range control and loudspeaker, which is applied in the field of loudspeaker, and can solve problems such as loudspeaker damage, broken sound, and speaker audio signal distortion, and achieve the effects of avoiding broken sound, improving output sound quality and service life, and suppressing output power

Active Publication Date: 2021-02-12
深圳瑞利声学技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the embodiment of the present invention provides a multi-segment dynamic range control method, system and loudspeaker to solve the problem that existing loudspeakers can only realize single-segment dynamic range control (Dynamic Range Control, DRC), and cannot effectively suppress audio signals. The output power of the loudspeaker will lead to distortion of the audio signal output by the speaker, especially when outputting a low-frequency signal with a large dynamic range, it is easy to produce a broken sound phenomenon, and it will also cause certain damage to the speaker.

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  • A multi-segment dynamic range control method, system and loudspeaker
  • A multi-segment dynamic range control method, system and loudspeaker
  • A multi-segment dynamic range control method, system and loudspeaker

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Embodiment 1

[0068] This embodiment provides a multi-segment dynamic range control method, which can be applied to any type of speakers or devices including speakers, for example, earphones, speakers, TVs, mobile phones, tablet computers, smart bracelets, personal digital assistants, notebook computers and other mobile terminals.

[0069] The multi-segment dynamic range control method includes:

[0070] Step S101 , accessing the left channel signal and the right channel signal, and adjusting the gains of the left channel signal and the right channel signal, to obtain a first left channel signal and a first right channel signal.

[0071] In a specific application, the left channel signal and the right channel signal can be obtained from devices or corresponding circuits that have the function of collecting and outputting audio signals, such as voice chips, microphones, and audio acquisition cards. The audio signal of the same channel can be input through a multi-segment dynamic range contr...

Embodiment 2

[0104] This embodiment provides a multi-segment dynamic range control method, which can be applied to any type of speakers or devices including speakers, for example, earphones, speakers, TVs, mobile phones, tablet computers, smart bracelets, personal digital assistants, notebook computers and other mobile terminals.

[0105] The multi-segment dynamic range control method includes:

[0106] Step S201, accessing the left channel signal and the right channel signal, and adjusting the gains of the left channel signal and the right channel signal, to obtain a first left channel signal and a first right channel signal.

[0107] In a specific application, the left channel signal and the right channel signal can be obtained from devices or corresponding circuits that have the function of collecting and outputting audio signals, such as voice chips, microphones, and audio acquisition cards. The audio signal of the same channel can be input through a multi-segment dynamic range contro...

Embodiment 3

[0141] This embodiment provides a multi-segment dynamic range control system, which can be any type of loudspeaker or a software program system in a device including a loudspeaker, such as earphones, speakers, TVs, mobile phones, tablet computers, smart bracelets, personal digital Assistants, laptops and other mobile terminals.

[0142] Such as figure 1 As shown, the multi-segment dynamic range control system 1 provided in this embodiment includes the following virtual devices that are simulated by software programs and have the same functions as physical devices:

[0143] Volume gain controller (Stereo Fader) 101, the first high-pass filter 102, the first equalizer (Equalizer, EQ) 103, the second high-pass filter 104, the first low-pass filter 105, the first dynamic range control circuit ( Dynamic Range Control, DRC) 106, second dynamic range control circuit 107, first signal adder 108, second signal adder 109, second equalizer 110, compressor (Compressor) 111, digital-to-an...

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Abstract

The invention is applicable to the technical field of loudspeakers. The invention provides a multi-segment dynamic range control method and system and a loudspeaker. The output power of the audio signal can be suppressed; filtering out low-frequency signals with over-low frequency; the amplification amount of an electric signal of an audio signal at at least one frequency point is adjusted; performing high-low frequency division on the audio signal; according to the loudspeaker, the high-frequency signal and the low-frequency signal after frequency division are dynamically limited respectively, so that the output power of the audio signal can be effectively suppressed, the audio signal is not distorted, the low-frequency signal with a larger dynamic range is filtered out, the sound breaking phenomenon is avoided, the multi-section dynamic range control of the audio signal is realized, the output sound quality of the loudspeaker is effectively improved, and the service life of the loudspeaker is effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of loudspeakers, and in particular relates to a multi-segment dynamic range control method, system and loudspeaker. Background technique [0002] With the continuous development of science and technology, various types of loudspeakers emerge in an endless stream, bringing good listening enjoyment to people. Existing speakers usually can only achieve single-segment dynamic range control (Dynamic Range Control, DRC), which cannot effectively suppress the output power of the audio signal, resulting in distortion of the audio signal output by the speaker, especially when outputting low-frequency signals with a large dynamic range , It is easy to produce broken sound, and it will also cause certain damage to the speaker. Contents of the invention [0003] In view of this, the embodiment of the present invention provides a multi-segment dynamic range control method, system and loudspeaker to solve the problem t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/02H04R9/06H04R2400/11
Inventor 朱孝委刘涛
Owner 深圳瑞利声学技术股份有限公司
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