CN106535058A - Method for reproducing stereophonic sound by stage site sound amplifier - Google Patents
Method for reproducing stereophonic sound by stage site sound amplifier Download PDFInfo
- Publication number
- CN106535058A CN106535058A CN201710066029.3A CN201710066029A CN106535058A CN 106535058 A CN106535058 A CN 106535058A CN 201710066029 A CN201710066029 A CN 201710066029A CN 106535058 A CN106535058 A CN 106535058A
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- China
- Prior art keywords
- sound
- microphone
- stage
- distance
- voice box
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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
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
-
- 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 method for reproducing stage stereophonic sound (see the appended drawing). Radio wave transceivers (3) and (4) are respectively arranged at the left corner and the right corner of a stage; a wireless microphone (2) capable of measuring a distance is used during stage performance; as a radio distance measuring technology is utilized, the distances between (2) and (3) and between (2) and (4) are measured in real time, and a specific value of the two distances is calculated out. The specific value after being processed is changed into a left and right sound channel adjusting component, so that the component of the sound amplified by the microphone on the left and right channels changes along with the change of the distance specific value, and the sound played by left and right sound boxes (5) and (6) has an effect of double-sound channel stereophonic sound. Therefore, reproduction of the stereophonic sound can be realized by the stage site sound amplifier, an immersive feeling of the performance site is greatly enhanced, and the program appreciation is enabled to be more tasteful.
Description
Technical field
The present invention relates in terms of stereo set field, binaural reproduction when especially stage scene amplifies.
Background technology
The sound of nature is three-dimensional, is the three-dimensional space position that can perceive sound source place.If we will be from
So reset after sound recording again, it is not just solid that the sound reset out is released from loudspeaker, because what we heard
Direction feeling of the sound without natural sound source, can only perceive the position of loudspeaker, it is impossible to tell the orientation of actual source of sound, just
Without third dimension.Playback to be realized has stereosonic effect, and for existing technology, modal is exactly two-channel stereo
Sound broadcast mode, the audio amplifier of two sound channels are respectively placed in the left front and right front of audience, and this stereo people can feel
To the left and right spatial impression of sound source, it is a kind of approximate stereo, but effect is also pretty good.Further there is the quadraphonic
It is stereo, two sound channels are exactly further added by the basis of above-mentioned double track, are rearmounted audio amplifier, so we are just can feel
The left-right and front-back of sound source（Or it is far and near）, it is this stereo closer to naturally stereo, also it is surround sound.If
Sound channel is made that more stereoeffects are better, but and increased complexity and the cost of equipment, it is not to increase too many sound channel
Reality, the universal acceptable or stereophony of current people, in order to be able to reach more preferably stereoeffect, more using mould
Like stereosonic method, it is exactly sound to be acted upon using modern technologies, particularly digital technology, simulation goes out more preferable solid
Sound comes.
Stereosonic effect quality is directly relevant with program is recorded, and usual recording stereo music program is will be in recording studio
In record, in order that do not allow external noise typing, affect to record quality, will be in stage when recording stereophony program
Right position respectively puts a microphone, and corresponding to the left and right acoustic channels of stereo set, what so for microphone, L channel was perceived is
The sound on the higher left side, what R channel was perceived are the sound on higher the right, although what left and right acoustic channels were recorded is program on the same stage, but
The audio signal picked up by left and right microphone is different, is just because such difference, so in our left and right of playback time
The sound that ear is heard also difference, thus have third dimension.If the stereo of more multichannel will corresponding more sound
Recording, such stereoeffect is just more preferable for the microphone in road.
Stage scene amplifies is recorded under the environment for opening wide, again big more than live noise, cannot be using in recording studio
Recording mode（It is that microphone is fixed on into left and right side in recording studio）, also it is recorded it is necessary to increase words to reduce noise
The pickup amount of cylinder, to suppress noise, the pickup amount of microphone to be increased cannot microphone be fixed on one it is local, but will be and then
What source of sound ran, the maximum pickup effect of source of sound can be just always ensured that, and microphone also wants selecting party tropism strong, in order to avoid surrounding
Noise is incoming, and thus causing microphone cannot be corresponding with corresponding sound channel.It can only be one that prior art amplifies to stage scene
One microphone of individual source of sound correspondence, sends into stereo amplification equipment and broadcasts again after the audio frequency picked up by respective microphone is simply superimposed
, thus stage scene amplify can not reduce it is stereo come.
The content of the invention
The reproducing stereo sound in order that stage scene amplifies, the present invention adopt a kind of microphone that can be found range, and pick up by making it
Sound again it is measurable go out relative position of the microphone on stage left and right directions, and using this relative position information de-regulation or so sound
The volume in road, enables the volume of left and right acoustic channels corresponding to relative position of the microphone on stage left and right directions, allows and listen under platform
The people of sound can perceive the direction feeling on source of sound left and right directions before the lights, i.e.,：Source of sound can be perceived in left and right directions
On movement, be allowed to the effect with stereophony.
The technical solution adopted for the present invention to solve the technical problems is（See accompanying drawing 1）：Pacify on stage left and right corner respectively
Put a radio wave transceiver（3）With（4）, using a wireless microphone that can be found range during performance（2）, using wireless electrical measurement
Away from technology, measure in real time（2）With（3）With（2）With（4）Distance, and calculate the ratio of the two distances, this ratio Jing
It is changed into left and right acoustic channels after process and adjusts component so that microphone（2）Expanded next sound is with this in the component of left and right acoustic channels
The change of one distance ratio and change, i.e.,：If microphone（2）Close to the left side, away from the right, left voice box is just allowed（5）Sound
It is big, right voice box（6）Sound it is less, microphone（2）More keep left, left voice box（5）It is louder, right voice box（6）It is less；If words
Cylinder（2）Close to the right, away from the left side, left voice box is just allowed（5）Sound it is less, right voice box（6）Sound more greatly, microphone（2）More
Keep right, right voice box（6）It is louder, left voice box（5）It is less；When two back gauges are equal, left and right audio amplifier volume balance.
A wireless distance finding module is equipped with described wireless microphone, and constantly alternating sends a branch of band whether there is to the module
Line wave transceiver（3）Or（4）The electromagnetic wave of the specific wavelength of address,（3）Or（4）It is counter again after receiving this electromagnetic wave to beam back
Go, after the module receives the electromagnetic wave of return, it is possible to which microphone is calculated according to the phase meter postponed by return electromagnetic wave（2）
With transceiver（3）Or（4）Distance.
Described wireless microphone reinstates wireless transmission method transmission measured data and the audio signal one picked up
Processed to microphone receiver（See accompanying drawing 2）, audio signal and ranging data, audio frequency is isolated Jing after signal is received, amplified
After the preposition amplification of left and right acoustic channels is given in signal averaging, then the sound channel formed by ranging data adjusts controlling for component, also finally
Original goes out stereophony audio output, is re-fed into rear class power amplifier and broadcasts with other stereo source of sound Hybrid amplifiers.
The invention has the beneficial effects as follows：Make the scene of stage amplify the stereosonic playback that can also realize, enhance performance existing
The body of field faces sense, greatly improves the appreciation quality of program；Amplifying stereo set can be compatible with existing stereo equipment, only
Microphone is changed, thus strong applicability, cost performance height, have a extensive future.
Description of the drawings
Its operation principle is further illustrated by Figure of description again below.
Accompanying drawing 1：It is stage equipment layout.Mark 1 is stage plane；Mark 2 is used before the lights, has range finding work(
Energy, wireless microphone, the microphone also add a radio wave range finder module in addition to the pickup function of having general microphone,
Function with range finding；Mark 3 and 4 is radio wave transceiver, it be one have from powered former, conveniently moving, have from
The radio wave transceiver of address, it is placed on two survey of left and right of stage, to receive the range finding electromagnetic wave that microphone sends,
And can beam back the electromagnetic wave counter, the radio wave range finder module in microphone will be according to the two-way time of the range finding electromagnetic wave
Calculate distance between the two；Mark 5 and 6 is a pair of audio amplifiers, and the audio amplifier is connected on stereophony power amplifier.
Accompanying drawing 2：It is stereo radio microphone receiver principle figure.The receiver is used with range finding microphone pairing, is talked about
The audio signal picked up and measured data signal are together sent to receiver by cylinder, and receiver is connected to the two signals
Afterwards, it is which " is received and amplified " first, then carries out " audio frequency separation ", ranging data and audio frequency are separated.Ranging data
Processing in sending into " ranging data process " device makes it be changed into " sound channel regulation component "；Audio frequency point two-way is respectively fed to " before L channel
Put amplifier " and " R channel preamplifier " do and further amplify, at this moment two sound channels output is one the same
Audio signal, the audio signal as two through " left and right acoustic channels balance " process after export is by sound channel adjust component control
The stereophony of system." left and right acoustic channels balance " can according to microphone stage or so relative position be adjusted left and right
The volume of sound channel, one amount is poor to produce left and right acoustic channels, and this amount difference just controls stereosonic perceived depth, and amount difference is bigger vertical
The depth of body-sensing is deeper, and the more little relief depth of amount difference is more shallow, and amount difference is zero stereo disappearance.We can arrange a rotation
Knob is poor to control this amount, adjusts relief depth, makes binaural reproduction effect reach optimum state.This microphone is received
Machine output two-channel stereo sound audio signals be the input and output standard for meeting existing stereo set, it can with it is existing
Stereo set is docked and compatible.
Specific embodiment
The present invention can be improved on the basis of existing wireless microphone technology, and wireless distance finding module is arranged on microphone
In, stereo radio microphone receiver is sent to after modulating together with the audio signal picked up by range measurement data and microphone to be connect
Receipts process.The principle of stereo radio microphone receiver is as shown in Fig. 2 the two-channel stereo sound audio that it exports will meet existing
Technical standard, to be more connected with existing any power amplifier.
The range finder module installed in microphone can send wireless distance finding electromagnetic wave in real time, and the wavelength of this electromagnetic wave is basis
Range finding distance and range accuracy come selected（λ=v/f, λ are wavelength, and v is approximately equal to 3*10 for the light velocity8Meter per second, f frequencies）, range finding
Principle is to go to measure microphone and radio wave transceiver distance between the two with the wavelength of this electromagnetic wave, this wavelength phase
When in one " ruler ", when electromagnetic wave in this distance to return one time when, the phase place of electromagnetic wave can occur to postpone, and delay many
Few wavelength is exactly how many wavelength distances（Deduct the delay time that equipment is processed and calculated）, then be exactly between the two divided by 2
Distance.For example：With 10 metric waves（That is f=v/λ=3*108/10=30MHz）To do " ruler ", if electromagnetic wave comes and goes
0.8 wavelength of time lag of first order, equipment process and the time required for calculating are 0.2 wavelength, and distance is exactly（0.8-0.2）/2
=0.6 wavelength, i.e., 0.6 (individual) * 10 (rice)=6 meter.In fact, equipment is processed and the delay time of calculating is a constant, no
Same design just has different constants, and we will experimentally measure this constant, to correct this distance value.
In actual applications, we are respectively placed in two radio wave transceivers on the left and right corner before stage, as survey
Away from mark post, the range finding electromagnetic wave that microphone sends by radio wave transceiver receive return feedback again, this electromagnetic wave is except as " chi
Outside the purposes of son " should also the address signal with radio wave transceiver, each one address of correspondence of two radio wave transceivers,
Range finder module can alternately send the electromagnetic wave with the two radio wave transceiver addresses, and radio wave transceiver is only received
Belong to that electromagnetic wave for address of controlling oneself, counter immediately after receiving to beam back, range finder module just receives the electromagnetic wave of this return
Phase-contrast can be carried out with primary electromagnetic wave, distance between the two can be calculated according to the phase contrast of two electromagnetic waves.
Wireless microphone can just be calculated in stage left and right directions from distance according to wireless microphone and the individual of two radio wave transceivers
On relative position, with this relative position information be converted into left and right acoustic channels adjust component control two sound channels audio component it is defeated
Go out, allow us to feel that microphone expands the sound for coming and has stereosonic effect.
The reproduction of double track is as described above, expand to the quadraphonic also in the same manner, or more sound channels, should all belong to the model of the present invention
Farmland, should all be protected by this patent.
Claims (3)
1. a kind of method of stage binaural reproduction, is characterized in that：Lay a radio wave on stage left and right corner respectively to receive
Send out device（3）With（4）, using a wireless microphone that can be found range during performance（2）, using radio distance-measuring technology, measure in real time
Go out（2）With（3）With（2）With（4）Distance, and calculate the ratio of the two distances, this ratio is changed into left and right Jing after processing
Sound channel adjusts component so that microphone（2）It is expanded come sound be change with this distance ratio in the component of left and right acoustic channels
Change and change, i.e.,：If microphone（2）Close to the left side, away from the right, left voice box is just allowed（5）Sound more greatly, right voice box（6）
Sound it is less, microphone（2）More keep left, left voice box（5）It is louder, right voice box（6）It is less；If microphone（2）Close to the right,
Away from the left side, left voice box is just allowed（5）Sound it is less, right voice box（6）Sound more greatly, microphone（2）More keep right, right voice box（6）
It is louder, left voice box（5）It is less；When two back gauges are equal, left and right audio amplifier volume balance.
2. the method for stage binaural reproduction according to claim 1, is characterized in that：One is equipped with described wireless microphone
Individual wireless distance finding module, constantly alternating sends a branch of with radio wave transceiver to the module（3）Or（4）Address it is specific
The electromagnetic wave of wavelength,（3）Or（4）It is counter again after receiving this electromagnetic wave to beam back, after the module receives the electromagnetic wave of return, just
The phase meter that can be postponed according to return electromagnetic wave calculates microphone（2）With transceiver（3）Or（4）Distance.
3. the method for stage binaural reproduction according to claim 1, is characterized in that：Described wireless microphone is measured
Data and the audio signal one picked up reinstate wireless transmission method and be sent to microphone receiver and processed, Jing signals connect
Audio signal and ranging data is isolated after retractable is big, after audio signal averagely gives the preposition amplification of left and right acoustic channels, then is found range
The sound channel formed by data adjusts the control of component, finally restores stereophony audio output, is re-fed into rear class power amplifier
Broadcast with other stereo source of sound Hybrid amplifiers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710066029.3A CN106535058A (en) | 2017-02-07 | 2017-02-07 | Method for reproducing stereophonic sound by stage site sound amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710066029.3A CN106535058A (en) | 2017-02-07 | 2017-02-07 | Method for reproducing stereophonic sound by stage site sound amplifier |
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| Publication Number | Publication Date |
|---|---|
| CN106535058A true CN106535058A (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710066029.3A Pending CN106535058A (en) | 2017-02-07 | 2017-02-07 | Method for reproducing stereophonic sound by stage site sound amplifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107948861A (en) * | 2017-12-25 | 2018-04-20 | 广州市尊浪电器有限公司 | A kind of method that sound equipment and automatic adjustment play |
| CN116760499A (en) * | 2023-07-07 | 2023-09-15 | 恩平市天悦音响科技有限公司 | Sound console sound tuning management system and method based on big data |
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| JPH03270400A (en) * | 1990-03-19 | 1991-12-02 | Roland Corp | Sound image localization device |
| CN1672463A (en) * | 2002-07-31 | 2005-09-21 | 皇家飞利浦电子股份有限公司 | Audio processing system |
| CN101365266A (en) * | 2007-08-06 | 2009-02-11 | 索尼株式会社 | Information processing device, information processing method, and program |
| JP4419300B2 (en) * | 2000-09-08 | 2010-02-24 | ヤマハ株式会社 | Sound reproduction method and sound reproduction apparatus |
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2017
- 2017-02-07 CN CN201710066029.3A patent/CN106535058A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03270400A (en) * | 1990-03-19 | 1991-12-02 | Roland Corp | Sound image localization device |
| JP4419300B2 (en) * | 2000-09-08 | 2010-02-24 | ヤマハ株式会社 | Sound reproduction method and sound reproduction apparatus |
| CN1672463A (en) * | 2002-07-31 | 2005-09-21 | 皇家飞利浦电子股份有限公司 | Audio processing system |
| CN101365266A (en) * | 2007-08-06 | 2009-02-11 | 索尼株式会社 | Information processing device, information processing method, and program |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107948861A (en) * | 2017-12-25 | 2018-04-20 | 广州市尊浪电器有限公司 | A kind of method that sound equipment and automatic adjustment play |
| CN107948861B (en) * | 2017-12-25 | 2020-07-14 | 广州市尊浪电器有限公司 | Sound equipment and automatic playing adjusting method |
| CN116760499A (en) * | 2023-07-07 | 2023-09-15 | 恩平市天悦音响科技有限公司 | Sound console sound tuning management system and method based on big data |
| CN116760499B (en) * | 2023-07-07 | 2023-12-01 | 恩平市天悦音响科技有限公司 | Sound console sound tuning management system and method based on big data |
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Application publication date: 20170322 |
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