CN106162443B - A kind of sound system - Google Patents
A kind of sound system Download PDFInfo
- Publication number
- CN106162443B CN106162443B CN201610748493.6A CN201610748493A CN106162443B CN 106162443 B CN106162443 B CN 106162443B CN 201610748493 A CN201610748493 A CN 201610748493A CN 106162443 B CN106162443 B CN 106162443B
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- Prior art keywords
- output end
- signal
- module
- voice signal
- microphone
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Classifications
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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
-
- 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
Abstract
The invention discloses a kind of sound systems, including effect device, multiple speakers, loudspeaker, power amplifier, the first wireless module, the first D/A converter module are equipped in any speaker, the second wireless module is equipped in the effect device, the power amplifier and the connection of the first D/A converter module, first D/A converter module and effect device are communicatively coupled by the first wireless module and the second wireless module.Reach the sound system of sound Lossless transport the purpose of the present invention is to provide a kind of method by wireless data transmission.
Description
Technical field
The present invention relates to stereo set field, specifically a kind of sound system.
Background technique
Existing sound system includes effect device, power amplifier, multiple speakers etc. mostly, but its there are the problem of
In, the amplified analog signal current of power amplifier is larger, needs to connect by entity cable with speaker, and wiring is complicated,
It is unfavorable for overhauling and safeguards, high failure rate.
Summary of the invention
Reach the sound of sound Lossless transport the purpose of the present invention is to provide a kind of method by wireless data transmission
Acoustic system.
Specific technical solution of the invention are as follows: a kind of sound system, including effect device, multiple speakers, in any speaker
It is equipped with loudspeaker, power amplifier, the first wireless module, the first D/A converter module, is equipped with the second nothing in the effect device
Wire module, the power amplifier and the connection of the first D/A converter module, first D/A converter module and effect device
It is communicatively coupled by the first wireless module and the second wireless module.
It should be noted that the second wireless module is the data transmission module of multichannel, the corresponding sound in each channel
The first wireless module in case.
In above-mentioned sound system, the effect device passes through the wireless mi crophone communication of the second wireless module and peripheral hardware
Connection.
In above-mentioned sound system, microphone amplifying circuit, controller, DSP number are additionally provided in the effect device
Processor；
The controller is connected with microphone amplifying circuit, DSP digital processing unit respectively；The microphone amplifies electricity
Road is connected by the second D/A converter module with DSP digital processing unit；
The microphone amplifying circuit is used for the voice signal enhanced processing for recording microphone, and is used for microphone
The electric frequency signal closed and opened is exported to controller；
The controller is used to judge whether microphone is opened according to electric frequency signal, and judging result is sent to DSP
Digital processing unit；
The sound that the DSP digital processing unit is used to record music signal and microphone when microphone is opened is believed
Number mixing output；When microphone is closed, the low frequency signal in music signal is extracted, and the low frequency signal is mixed with music signal
Close output.
In above-mentioned sound system, the DSP digital processing unit includes:
Low frequency signal extraction module, the low frequency signal in audio signal for extracting music signal；
First balance module, for carrying out parametric equalization processing to low frequency signal；
Second balance module, for the carry out parametric equalization processing to music signal；
Third balance module, for carrying out parametric equalization processing to voice signal；
Output end, the output end include in set output end, around output end, main output end, subwoofer output end,
In, music signal and voice signal pass through in set output end, around output end, main output end, the output of subwoofer output end, it is low
Frequency signal sets output end, with the audio signal of music is superimposed output around output end, main output end in passing through.
In above-mentioned sound system, it is described in set output end, around output end, main output end, subwoofer output end
It is connected respectively with the second wireless module, the speaker includes center-channel speaker, surround speaker, main sound box, super-bass loudspeaker box；It is described
The second wireless module and the first wireless module be connected, second wireless module and the first wireless module is connected.
In above-mentioned sound system, the effect device further includes echo reverberations module and the 4th balance module；
The echo reverberations module is used to carry out at echo reverberations to through third balance module treated voice signal
Reason；
4th balance module is used to carry out at parametric equalization the voice signal after echo reverberations resume module
Reason.
In above-mentioned sound system, the effect device further includes sequentially connected compensating filter, phase-shift circuit, puts down
Whole filter, the compensating filter are connected with microphone amplifying circuit, the flattened filter and the second digital-to-analogue conversion
Module is connected；
The voice signal that the compensating filter is used to input microphone amplifying circuit carries out gain compensation；Described
Phase-shift circuit is used to voice signal carrying out phase shift；The flattened filter is used to carry out voice signal at gain leveling
Reason；
Wherein, the amplitude of gain compensation is determined according to shifted treated the attenuation amplitude of voice signal.
In above-mentioned sound system, the voice signal of the phase-shift circuit output includes two-way by 90 ° of phase shift
Voice signal, the flattened filter are two, are respectively used to the voice signal that processing two-way passes through 90 ° of phase shift.
In above-mentioned sound system, the amplitude of the gain compensation is according to shifted treated the decaying of voice signal
Amplitude it is determining method specifically: handled using the audio signal of a zero gain by phase shift, the audio signal is by phase shift
There can be decaying after reason, the gain range and the amplitude of above-mentioned decaying are zero the sum of at any frequency.
Compared with prior art, the beneficial effects of the present invention are:
Sound system of the invention reaches sound Lossless transport, no wiring, maintenance by the method for wireless data transmission
Simply, long service life.
Detailed description of the invention
Fig. 1 is the structural block diagram of the embodiment of the present invention 1；
Fig. 2 is the structural block diagram of the embodiment of the present invention 1.
Specific embodiment
With reference to embodiment, technical solution of the present invention is described in further detail, but do not constituted pair
Any restrictions of the invention.
Embodiment 1
As shown in Figure 1, a kind of sound system, including effect device 1, multiple speakers, loudspeaker 2, function are equipped in any speaker
Rate amplifier 3, the first wireless module 4, the first D/A converter module 5 are equipped with the second wireless module 6, institute in the effect device 1
The power amplifier 3 stated and the connection of the first D/A converter module 5, first D/A converter module 5 and effect device 1 pass through the
One wireless module 4 and the second wireless module 6 are communicatively coupled, and the effect device 1 passes through the second wireless module 6 and peripheral hardware
Wireless mi crophone communication connection.
In order to improve effect automatic adjustment of this sound system between absolute music is appreciated and sung, in the present embodiment,
As shown in Fig. 2, being additionally provided with microphone amplifying circuit 7, controller 9, DSP digital processing unit 8 in the effect device 1；
The controller is connected with microphone amplifying circuit 7, DSP digital processing unit 8 respectively；The microphone amplification
Circuit 7 is connected by the second D/A converter module 16 with DSP digital processing unit 8；
The microphone amplifying circuit 7 is used for the voice signal enhanced processing for recording microphone, and is used for Mike
The electric frequency signal that wind is closed and opened is exported to controller 9；
The controller 9 is used to judge whether microphone is opened according to electric frequency signal, and judging result is sent to DSP
Digital processing unit 8；
The sound that the DSP digital processing unit 8 is used to record music signal and microphone when microphone is opened is believed
Number mixing output；When microphone is closed, the low frequency signal in music signal is extracted, and the low frequency signal is mixed with music signal
Close output.
By above-mentioned setting, controller 9 can accurately be learnt when microphone is closed and is opened, and judging result is sent out
It send to DSP digital processing unit 8, DSP digital processing unit 8 is when microphone is opened, sound that music signal and microphone are recorded
Signal mixing output；When microphone is closed, the low frequency signal in music signal is extracted, and by the low frequency signal and music signal
Mixing output.
So designing is advantageous in that, when microphone is opened, illustrates that user will sing, does not need excessive weight at this time
Bass, music signal and voice signal, which are mixed, can be obtained preferable voice output effect.
When microphone is closed, illustrate that user wants to listen song or dancing, at this moment, low frequency signal is extracted from music signal,
And the low frequency signal is added in music signal, the supper bass effect shaken very much available in this way.In this case,
Setting super-bass loudspeaker box 24 can even not had to, music effect is also enough to shake the whole audience.
Specifically, the DSP digital processing unit 8 includes:
Low frequency signal extraction module 91, the low frequency signal in audio signal for extracting music signal；
First balance module 92, for carrying out parametric equalization processing to low frequency signal；
Second balance module 93, for the carry out parametric equalization processing to music signal；
Third balance module 94, for carrying out parametric equalization processing to voice signal；
Output end, the output end include in set output end 95, defeated around output end 96, main output end 97, subwoofer
Outlet 98, wherein music signal and voice signal pass through in set output end 95, around output end 96, main output end 97, ultralow
Sound output end 98 exports, low frequency signal pass through in set output end 95, believe around the audio of output end 96, main output end 97 and music
Number superposition output；Output end 95 is set in described, around output end 96, main output end 97, subwoofer output end 98 respectively with the
Two wireless modules 6 are connected, and the speaker includes center-channel speaker 21, surround speaker 22, main sound box 23, super-bass loudspeaker box 24；Institute
The second wireless module 6 stated is connected with the first wireless module 4, and second wireless module 6 is connected with the first wireless module 4.
The digital signal that output end 95 is set in this way, passes through the first wireless module that the second wireless module 6 is transferred in center-channel speaker 21
4, the digital signal around output end 96 is transferred to the first wireless module 4 in surround speaker 22 by the second wireless module 6, main
The digital signal of output end 97 is transferred to the first wireless module 4 in main sound box 23, subwoofer output by the second wireless module 6
The digital signal at end 98 is transferred to the first wireless module 4 in subwoofer output end 98 by the second wireless module 6.
When microphone is closed, the first balance module 92 and the second balance module 93 are respectively to low frequency signal and music signal
Parametric equalization processing is carried out, parametric equalization parameter is pre-set according to user's space shape, size, indoor decorative etc., is arranged
Generally do not allow arbitrarily to adjust after having got well.
When microphone is opened, the second balance module 93 and third balance module 94 are respectively to music signal and voice signal
Carry out parametric equalization processing.
It is digital signal by treated signal, by the second wireless module 6 by the digital signal Lossless transport
It is converted into analog signal to the first wireless module 4, then by the first D/A converter module 5, is being passed through after being output to power amplifier 3
Loudspeaker 2 broadcast.
In order to solve reverberation effect in actual application, the effect device 1 further includes echo reverberations module 11
With the 4th balance module 12；
The echo reverberations module 11 is used for mixed to echo is carried out through treated the voice signal of third balance module 94
Ring processing；
4th balance module 12 is used for equal to parameter is carried out through treated the voice signal of echo reverberations module 11
Weighing apparatus processing.
Echo reverberations processing and residual equalization treated the more fine and smooth saturation of voice are carried out by echo reverberations module 11.
In the present embodiment, this sound system is also integrated with anti-system of uttering long and high-pitched sounds in effect device 1, but this prevents system of uttering long and high-pitched sounds
There is essential distinction with traditional anti-system of uttering long and high-pitched sounds, this sound system is while preventing from uttering long and high-pitched sounds, it is thus also avoided that traditional is anti-
The problem of voice during only uttering long and high-pitched sounds is distorted, specifically, the effect device 1 further includes sequentially connected compensating filter
13, phase-shift circuit 14, flattened filter 15, the compensating filter 13 are connected with microphone amplifying circuit 7, and described is smooth
Filter 15 is connected with the second D/A converter module 16；
The voice signal that the compensating filter 13 is used to input microphone amplifying circuit 7 carries out gain compensation；Institute
The phase-shift circuit 14 stated is used to voice signal carrying out phase shift；The flattened filter is used to voice signal carrying out gain tune
Flat processing；
Wherein, the amplitude of gain compensation is determined according to shifted treated the attenuation amplitude of voice signal.Specifically come
It says, needs that the audio signal of a zero gain is individually passed through phase-shift circuit 14 in advance carrying out phase shift processing, exported after obtaining phase shift
Audio signal attenuation amplitude, the amplitude of gain compensation is obtained according to the attenuation amplitude of audio signal, i.e., at any frequency
The sum of the amplitude of decaying and gain range are zero.In practical applications, phase shift treated audio is carried out by phase-shift circuit 14
Signal is generally in smile shape, i.e., decaying less, decays more, such as -3DB at intermediate frequency at low frequency, and high frequency treatment is decayed less, in such case
Under, it is gain mostly such as 3DB at intermediate frequency that compensating filter 13 is with regard to needing to carry out gain to audio signal in advance, and gain is few at low frequency,
High frequency treatment gain is few.
In the present embodiment, the voice signal that the phase-shift circuit 14 exports includes the sound that two-way passes through 90 ° of phase shift
Signal, the flattened filter are two, are respectively used to the voice signal that processing two-way passes through 90 ° of phase shift.The smooth filtering
The gain leveling processing of device is mainly in the audio signal by flattened filter gain and after 14 gain of phase-shift circuit
There are gain minor swings to be adjusted, and the gain zero in the frequency range of entire audio signal is made.These gain minor swings are
It not can avoid, because phase-shift circuit 14 stringent can't offset the gain of agc filter.By this smooth filter
After the leveling processing of wave device, the frequency response curve of entire audio signal is exactly horizontal, regardless of whether by digitized processing,
Fidelity after output is also very high.
Above-mentioned anti-system of uttering long and high-pitched sounds first passes through the decaying that phase-shift circuit 14 can be effectively offset after gain process in advance, improves and exists
Voice fidelity in treatment process of uttering long and high-pitched sounds.
Above-described is only presently preferred embodiments of the present invention, all made within the scope of the spirit and principles in the present invention
What modifications, equivalent substitutions and improvements etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of sound system, which is characterized in that including effect device, multiple speakers, be equipped with loudspeaker in any speaker, power is put
Big device, the first wireless module, the first D/A converter module are equipped with the second wireless module, the power in the effect device
Amplifier and the connection of the first D/A converter module, first D/A converter module and effect device by the first wireless module and
Second wireless module is communicatively coupled；
Microphone amplifying circuit, controller, DSP digital processing unit are additionally provided in the effect device；
The controller is connected with microphone amplifying circuit, DSP digital processing unit respectively；The microphone amplifying circuit is logical
The second D/A converter module is crossed to be connected with DSP digital processing unit；
The microphone amplifying circuit is used for the voice signal enhanced processing for recording microphone, and for closing microphone
It exports with the electric frequency signal of unlatching to controller；
The controller is used to judge whether microphone is opened according to electric frequency signal, and judging result is sent to DSP number
Processor；
The DSP digital processing unit is used to mix the voice signal that music signal and microphone are recorded when microphone is opened
Close output；When microphone is closed, the low frequency signal in music signal is extracted, and the low frequency signal is mixed with music signal defeated
Out；
The effect device further includes sequentially connected compensating filter, phase-shift circuit, flattened filter, the compensation filter
Device is connected with microphone amplifying circuit, and the flattened filter is connected with the second D/A converter module；
The voice signal that the compensating filter is used to input microphone amplifying circuit carries out gain compensation；The phase shift
Circuit is used to voice signal carrying out phase shift；The flattened filter is used to voice signal carrying out gain leveling processing；
Wherein, the amplitude of gain compensation is determined according to shifted treated the attenuation amplitude of voice signal.
2. sound system according to claim 1, which is characterized in that the effect device is by the second wireless module and outside
If wireless mi crophone communication connection.
3. according to sound system according to claim 1, which is characterized in that the DSP digital processing unit includes:
Low frequency signal extraction module, the low frequency signal in audio signal for extracting music signal；
First balance module, for carrying out parametric equalization processing to low frequency signal；
Second balance module, for the carry out parametric equalization processing to music signal；
Third balance module, for carrying out parametric equalization processing to voice signal；
Output end, the output end include in set output end, around output end, main output end, subwoofer output end, wherein
Music signal and voice signal set output end, circular output end, main output end, the output of subwoofer output end, low frequency in passing through
Signal sets output end, with the audio signal of music is superimposed output around output end, main output end in passing through.
4. according to sound system according to claim 3, which is characterized in that set in described output end, around output end,
Main output end, subwoofer output end are connected with the second wireless module respectively, the speaker include center-channel speaker, surround speaker,
Main sound box, super-bass loudspeaker box；Second wireless module and the first wireless module is connected.
5. according to sound system according to claim 3, which is characterized in that the effect device further includes echo reverberations mould
Block and the 4th balance module；
The echo reverberations module is used to carry out echo reverberations processing to through third balance module treated voice signal；
4th balance module is used to carry out parametric equalization processing to the voice signal after echo reverberations resume module.
6. sound system according to claim 1, which is characterized in that the voice signal of the described phase-shift circuit output includes
Two-way passes through 90 ° of phase shift of voice signal, and the flattened filter is two, is respectively used to processing two-way by 90 ° of phase shift
Voice signal.
7. sound system according to claim 6, which is characterized in that the amplitude of the gain compensation is according to voice signal
Shifted treated attenuation amplitude it is determining method specifically: handled using the audio signal of a zero gain by phase shift, should
Audio signal can have a decaying after phase shift is handled, the amplitude of the gain range and above-mentioned decaying at any frequency it
Be zero.
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| CN201610748493.6A CN106162443B (en) | 2016-08-29 | 2016-08-29 | A kind of sound system |
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|---|---|---|---|
| CN201610748493.6A CN106162443B (en) | 2016-08-29 | 2016-08-29 | A kind of sound system |
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| CN106162443A CN106162443A (en) | 2016-11-23 |
| CN106162443B true CN106162443B (en) | 2019-04-26 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107801141B (en) * | 2017-10-10 | 2018-11-16 | 江苏中协智能科技有限公司 | A kind of auditorium sound reinforcement system |
| CN108174329A (en) * | 2017-12-25 | 2018-06-15 | 广州市尊浪电器有限公司 | A kind of sound system |
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Address after: 511442 shop 105, shop 106, No.1, Yiheng Road, Jiangnan Industrial Zone 2, Nancun Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Shengmu Audio Technology Co.,Ltd. Address before: 511442 no.2-102, No.3, Xingye Avenue, Nancun Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU SHENGMU AUDIO EQUIPMENT Co.,Ltd. |
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