CN107948871A - A kind of sound system and its noise-reduction method for eliminating environmental noise - Google Patents
A kind of sound system and its noise-reduction method for eliminating environmental noise Download PDFInfo
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- CN107948871A CN107948871A CN201711411617.2A CN201711411617A CN107948871A CN 107948871 A CN107948871 A CN 107948871A CN 201711411617 A CN201711411617 A CN 201711411617A CN 107948871 A CN107948871 A CN 107948871A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The present invention relates to stereo set technical field, and disclosing a kind of sound system for eliminating environmental noise and a kind of noise-reduction method of sound box system, sound system includes：Audio receiver, audio processor, at least two loudspeakers, further include noise reduction module, noise reduction module includes sound acquisition module, noise judgment module, Dolby circuit, sound acquisition module is used for the voice signal for gathering environment and exports to the noise judgment module, noise judgment module judges the voice signal gathered in sound acquisition module, determine whether noise, Dolby circuit can produce the suppression ripple with the voice signal opposite in phase of noise, so as to eliminate environmental noise.Beneficial effects of the present invention are：Excellent noise reduction effect, sound equipment tonequality can be improved by carrying out ambient noise-reduction to sound system using this noise-reduction method.
Description
Technical field
The present invention relates to stereo set technical field, more particularly to a kind of sound system for eliminating environmental noise and its
Noise-reduction method.
Background technology
Sound equipment, refers to the language except people, other sounds in addition to music, including the sound of natural environment, the sound of animal
Various sound that the action of the sound equipment of sound and its instrument, people is sent etc..Sound equipment mainly include effect, peripheral equipment (including pressure limit
Device, effect device, balanced device, VCD, DVD etc.), loudspeaker (speaker, loudspeaker) sound console, microphone, display device etc., wherein, sound
Case is exactly audio output device, loudspeaker, subwoofer etc..At present, the main direction of studying for sound system is how to improve hair
Sound quality, avoids distortion；But any processing is not done but for the noise of external environment condition.
The content of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide a kind of sound box system for eliminating environmental noise.
To achieve these goals, the present invention provides a kind of sound system for eliminating environmental noise, it includes：Audio connects
Device is received, for receiving the audio signal of transmission；Audio processor, for handling the audio letter from audio receiver output
Number；At least two loudspeakers, for sending the audio signal after audio processor is handled；Noise reduction module, including sound collection mould
Block, noise judgment module, Dolby circuit, the sound acquisition module are used for the voice signal for gathering environment, and the noise judges
Module judges the voice signal gathered in the sound acquisition module, determines whether noise, the Dolby circuit energy
Enough suppression ripples produced with the voice signal opposite in phase of noise；Controller, is electrically connected in the audio processor, makes an uproar
Sound judgment module, Dolby circuit.
Preferably, the sound system for eliminating environmental noise includes two loudspeakers.
Preferably, the audio processor includes bass detection module, and two loudspeakers are respectively low
Sound loudspeaker and ventional loudspeakers, the audio signal for being detected as bass through the bass detection module are exported to the bass loudspeaker
Device, other audio signals are exported to the ventional loudspeakers.
Same purpose, the present invention also provides a kind of noise-reduction method of sound system, it eliminates environment based on above-mentioned
The sound system of noise, it comprises the following steps：
S1：The voice signal in environment is gathered using sound acquisition module；
S2：Judge whether the voice signal in sound acquisition module is noise；
S3：If the voice signal in sound acquisition module is noise, controller is fed back to, controller is controlled to start
Dolby circuit, the suppression ripple of the opposite in phase for the noise sound wave for producing and collecting carry out noise reduction；
If the voice signal in sound acquisition module is not noise, controller is fed back to, controller is controlled to close
The Dolby circuit.
The present invention provides a kind of sound system for eliminating environmental noise, it is by setting noise reduction module, noise reduction module bag
Include：Sound acquisition module, noise judgment module, Dolby circuit, sound acquisition module is used for the voice signal for gathering environment, described
Noise judgment module judges the voice signal gathered in the sound acquisition module, determines whether noise, the drop
Noise cancellation circuit can produce the suppression ripple with the voice signal opposite in phase of noise, so as to eliminate environmental noise；The present invention also carries
For a kind of noise-reduction method of sound system, using the noise reduction module, environmental noise can be effectively eliminated, and then improve sound equipment
Tonequality.
Brief description of the drawings
Fig. 1 is a kind of structure diagram for the sound system for eliminating environmental noise in the embodiment of the present invention；
Fig. 2 is a kind of flow chart of the noise-reduction method of sound system in the embodiment of the present invention；
In figure, 10, audio receiver；11st, wireless receiving circuit；20th, audio processor；21st, bass detection module；30、
Loudspeaker；31st, woofer；32nd, ventional loudspeakers；40th, noise reduction module；41st, sound acquisition module；42nd, noise judges mould
Block；43rd, Dolby circuit；50th, controller.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
With reference to shown in Fig. 1, a kind of sound system for eliminating environmental noise of the preferred embodiment of the present invention, it includes：Sound
Frequency receiver 10, for receiving the audio signal of transmission；Audio processor 20, exports for handling from the audio receiver 10
Audio signal；At least two loudspeakers 30, for sending the audio signal after audio processor 20 is handled；Noise reduction module 40,
Including sound acquisition module 41, noise judgment module 42, Dolby circuit 43, the sound acquisition module 41 is used to gather environment
Voice signal and output to the noise judgment module 42, the noise judgment module 42 in the sound acquisition module 41 to adopting
The voice signal of collection is judged, determines whether noise, and the Dolby circuit 43 can produce the voice signal phase with noise
The opposite suppression ripple in position；Controller 50, is electrically connected in the audio processor 20, noise judgment module 40, noise reduction electricity
Road 43., by setting noise reduction module 40, noise reduction module 40 includes for it：Sound acquisition module 41, noise judgment module 42, noise reduction electricity
Road 43, sound acquisition module 41 are used to the voice signal for gathering environment and export to noise judgment module 42, the noise judge
Module 42 judges the voice signal gathered in the sound acquisition module 41, determines whether noise, the noise reduction electricity
Road can produce the suppression ripple with the voice signal opposite in phase of noise, so as to eliminate environmental noise, can effectively remove division ring
Border noise, so as to improve the pronunciation tonequality of sound equipment.
Based on above-mentioned technical proposal, a kind of sound system for eliminating environmental noise, including two are provided in the present embodiment
The loudspeaker 30.Exemplarily, or three loudspeakers 30, are respectively used to export high, medium and low sound.
In the present embodiment, specifically, the audio processor 20 includes bass detection module 21, two loudspeakers
30 be respectively woofer 31 and ventional loudspeakers 32, and it is defeated for the audio signal of bass to detect 21 through the bass detection module
Go out to the woofer 31, other audio signals are exported to the ventional loudspeakers 32, the setting of woofer 31
The sound increase stereovision of output can be given, makes tonequality more preferable.
Preferably, the audio receiver 10 includes wireless receiving circuit 11, and the wireless receiving circuit 11 is by wireless
Audio emitter outside signal connection, and the wireless receiving circuit 11 is electrically connected at the audio processor 20.
The present invention also provides another embodiment, this embodiment provides a kind of noise-reduction method of sound box system, it is based on foregoing
A kind of sound box system for eliminating external noise, with reference to shown in Fig. 2, comprise the following steps：
S1：The voice signal in environment is gathered using sound acquisition module 41；
S2：Judge whether the voice signal that sound acquisition module 41 collects is noise；
S3：If the voice signal in sound acquisition module 41 is noise, controller 50 is fed back to, controller 50 controls
To start Dolby circuit 43, the suppression ripple of the opposite in phase for the noise sound wave for producing and collecting carries out noise reduction；
If the voice signal in sound acquisition module 41 is not noise, fed back to controller 50, controller control with
Close the Dolby circuit 43.
To sum up, the embodiment of the present invention provides a kind of noise reduction side for the sound system and sound system for eliminating environmental noise
Method, by setting noise reduction module 40, noise reduction module includes：Sound acquisition module 41, noise judgment module 42, Dolby circuit 43,
Sound acquisition module 41 is used for the voice signal for gathering environment, and the noise judges 42 pieces of mould in the sound acquisition module 41
The voice signal of collection is judged, determines whether noise, and the Dolby circuit 43 can produce the voice signal with noise
The suppression ripple of opposite in phase, so as to eliminate environmental noise, using the noise reduction module 40, can effectively eliminate environment and make an uproar
Sound, and then improve the tonequality of sound equipment.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and replacement can also be made, these improve and replace
Also it should be regarded as protection scope of the present invention.
Claims (5)
- A kind of 1. sound system for eliminating environmental noise, it is characterised in that including：Audio receiver (10), for receiving the audio signal of transmission,Audio processor (20), for handling the audio signal from the audio receiver (10) output,At least two loudspeakers (30), for sending the audio signal after audio processor (20) is handled,Noise reduction module (40), including sound acquisition module (41), noise judgment module (42), Dolby circuit (43), the sound Acquisition module (41) is used for the voice signal for gathering environment and output to the noise judgment module (42), the noise judges mould Block (42) judges the voice signal of collection in the sound acquisition module (41), determines whether noise, the noise reduction Circuit (43) can produce the suppression ripple with the voice signal opposite in phase of noise,Controller (50), is electrically connected in the audio processor (20), noise judgment module (40), Dolby circuit (43)。
- 2. the sound system of environmental noise can be eliminated as claimed in claim 1, it is characterised in that including two loudspeakers (30)。
- 3. the sound system of environmental noise can be eliminated as claimed in claim 2, it is characterised in that the audio processor (20) Include bass detection module (21), two loudspeakers (30) are respectively woofer (31) and ventional loudspeakers (32), exported through bass detection module detection (21) for the audio signal of bass to the woofer (31), it is other Audio signal export to the ventional loudspeakers (32).
- 4. the sound system of environmental noise can be eliminated as claimed in claim 1, it is characterised in that the audio receiver (10) Including wireless receiving circuit (11), the wireless receiving circuit (11) by wireless signal connect outside audio emitter, and The wireless receiving circuit (11) is electrically connected at the audio processor (20).
- 5. a kind of noise-reduction method of sound system, it is characterised in that based on eliminating ring any one of claim 1-4 The sound system of border noise, comprises the following steps：S1：The voice signal in environment is gathered using sound acquisition module (41)；S2：Judge whether the voice signal in sound acquisition module (41) is noise；S3：If the voice signal in sound acquisition module (41) is noise, controller (50), controller (50) control are fed back to For system to start Dolby circuit (43), the suppression ripple of the opposite in phase for the noise sound wave for producing and collecting carries out noise reduction；If the voice signal in sound acquisition module (41) is not noise, fed back to controller (50), controller control with Close the Dolby circuit (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711411617.2A CN107948871A (en) | 2017-12-23 | 2017-12-23 | A kind of sound system and its noise-reduction method for eliminating environmental noise |
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| CN201711411617.2A CN107948871A (en) | 2017-12-23 | 2017-12-23 | A kind of sound system and its noise-reduction method for eliminating environmental noise |
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| CN107948871A true CN107948871A (en) | 2018-04-20 |
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| CN201711411617.2A Pending CN107948871A (en) | 2017-12-23 | 2017-12-23 | A kind of sound system and its noise-reduction method for eliminating environmental noise |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346053A (en) * | 2018-09-27 | 2019-02-15 | 珠海格力电器股份有限公司 | Noise reduction device, control method and control device |
| CN117641184A (en) * | 2023-12-19 | 2024-03-01 | 深圳华钜芯半导体有限公司 | Sound box noise reduction control system based on environmental parameter identification |
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| CN102883121A (en) * | 2012-09-24 | 2013-01-16 | 北京多看科技有限公司 | Method and device for regulating volume, and digital terminal |
| CN104981713A (en) * | 2013-02-01 | 2015-10-14 | 三星电子株式会社 | System and method for setting audio output channels of speakers |
| CN205545856U (en) * | 2016-04-08 | 2016-08-31 | 微鲸科技有限公司 | It makes a sound to fall noise |
| CN205793252U (en) * | 2016-07-06 | 2016-12-07 | 微鲸科技有限公司 | A kind of active noise reduction audio amplifier |
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2017
- 2017-12-23 CN CN201711411617.2A patent/CN107948871A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102883121A (en) * | 2012-09-24 | 2013-01-16 | 北京多看科技有限公司 | Method and device for regulating volume, and digital terminal |
| CN104981713A (en) * | 2013-02-01 | 2015-10-14 | 三星电子株式会社 | System and method for setting audio output channels of speakers |
| CN205545856U (en) * | 2016-04-08 | 2016-08-31 | 微鲸科技有限公司 | It makes a sound to fall noise |
| CN205793252U (en) * | 2016-07-06 | 2016-12-07 | 微鲸科技有限公司 | A kind of active noise reduction audio amplifier |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346053A (en) * | 2018-09-27 | 2019-02-15 | 珠海格力电器股份有限公司 | Noise reduction device, control method and control device |
| CN109346053B (en) * | 2018-09-27 | 2024-06-18 | 珠海格力电器股份有限公司 | Noise reduction device, control method and control device |
| CN117641184A (en) * | 2023-12-19 | 2024-03-01 | 深圳华钜芯半导体有限公司 | Sound box noise reduction control system based on environmental parameter identification |
| CN117641184B (en) * | 2023-12-19 | 2024-06-28 | 深圳华钜芯半导体有限公司 | Sound box noise reduction control system based on environmental parameter identification |
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Application publication date: 20180420 |