CN107257520A - A kind of video playback apparatus and audio amplifier power regulating method - Google Patents
A kind of video playback apparatus and audio amplifier power regulating method Download PDFInfo
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- CN107257520A CN107257520A CN201710585177.6A CN201710585177A CN107257520A CN 107257520 A CN107257520 A CN 107257520A CN 201710585177 A CN201710585177 A CN 201710585177A CN 107257520 A CN107257520 A CN 107257520A
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
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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
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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
- 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)
- Circuit For Audible Band Transducer (AREA)
Abstract
The invention provides the method for adjustment of a kind of video playback apparatus and audio amplifier power.Video playback apparatus includes controller and audio amplifier, the controller is used for the information of space size where obtaining video playback apparatus, according to preset rules and the information of the space size, corresponding adjust instruction is produced, the adjust instruction is used for the power output for adjusting audio amplifier；The audio amplifier is connected with the controller, and audio is played with corresponding power output for receiving the adjust instruction, and according to the adjust instruction.Video playback apparatus can adjust the power output of audio amplifier according to the information of space size so that the audio of broadcasting preferably matches current environment, obtain more preferable audio result of broadcast, lift customer experience.
Description
Technical field
The present invention relates to video playback apparatus technical field, more particularly to a kind of video playback apparatus and the adjustment of audio amplifier power
Method.
Background technology
The Display Technique of current video playback apparatus (such as television set etc.) is developed rapidly, the popularization such as large screen super-thin TV
Degree is constantly uprised, but the television field frame technical progress on video playback apparatus is not high.The Primary Component of television audio is arranged at
Audio amplifier on television set, in the prior art, the size of the broadcasting power of audio amplifier are typically adjusted by client, are not possessed basis and are regarded
The ability of the broadcasting power of space size adjust automatically audio amplifier residing for frequency playback equipment, have impact on customer experience.
The content of the invention
The first object of the present invention is to propose a kind of video playback apparatus, according to the information of space size adjustment audio amplifier
Power output, obtains more preferable audio result of broadcast, lifts customer experience.
For up to this purpose, the present invention uses following technical scheme：
A kind of video playback apparatus, including：
Controller, the information of space size where for obtaining video playback apparatus, according to preset rules and the space
The information of size, produces corresponding adjust instruction, and the adjust instruction is used for the power output for adjusting audio amplifier；
Audio amplifier, is connected with the controller, for receiving the adjust instruction, and according to the adjust instruction with corresponding
Power output plays audio.
Further, the front of the video playback apparatus is provided with viewing area, and the audio amplifier includes：
Two top audio amplifiers, both sides at the top of the viewing area respectively, the top audio amplifier is towards the video
The front of playback equipment is set obliquely；
Two bottom audio amplifiers, respectively positioned at the bottom of the viewing area, towards the front of the video playback apparatus；With
Woofer；
The top audio amplifier, the bottom audio amplifier and woofer formation sound-channel voice box；
The top audio amplifier, the bottom audio amplifier and the woofer are connected with the controller respectively, and according to each
The adjust instruction from reception is with corresponding power output broadcasting audio.
Further, video playback apparatus also includes：
Microphone, is connected with the controller, for receiving the audio that the audio amplifier is played；
When the controller plays the reception for playing moment and the microphone reception audio of audio according to the audio amplifier
Carve, calculate the time difference for playing moment and the time of reception, the information of space size where obtaining video playback apparatus.
The second object of the present invention is to propose a kind of audio amplifier power regulating method, can adjusted according to the information of space size
The power output of whole audio amplifier, obtains more preferable audio result of broadcast, lifts customer experience.
For up to this purpose, the present invention uses following technical scheme：
A kind of audio amplifier power regulating method, applied to above-mentioned video playback apparatus, including：
The information of space size where the controller obtains video playback apparatus；
The controller produces corresponding adjust instruction, the tune according to preset rules and the information of the space size
The whole power output instructed for adjusting audio amplifier；
The audio amplifier receives the adjust instruction, and plays sound according to the adjust instruction with corresponding power output
Frequently.
Further, in the space where the video playback apparatus, the region of the bottom audio amplifier direction has metope,
The information of the space size refers to sound from the audio amplifier to the length of the metope paths traversed.
Further, the space where the video playback apparatus is in the upper of the video playback apparatus video playback apparatus
Side has top surface；
The information of the space size includes the first distance value and second distance value, and first distance value represents the bottom
The distance between portion's audio amplifier and the metope.
The second distance value represents that referring to direction of the sound along the top audio amplifier propagates, and is reflexed to by the top surface
The length of the metope paths traversed.
Further, in the controller according to preset rules and the information of the space size, produce for adjusting institute
Also include before the adjust instruction for stating audio amplifier：
The controller calculates the second distance according to first distance value, distance from top h and audio amplifier angle a
Value, wherein, the distance from top h be top audio amplifier apart from the distance of the top surface, the audio amplifier angle a is top audio amplifier and institute
State video playback apparatus just facing to angle complementary angle.
Further, the information of space size includes where the controller obtains video playback apparatus：
The controller record audio amplifier plays the broadcasting moment of audio；
The controller record microphone receives the time of reception of the audio；
The controller calculates the time difference for playing moment and the time of reception,
The controller calculates sound from the audio amplifier to the metope paths traversed according to the time difference
Length.
Further, according to preset rules, producing corresponding adjust instruction includes：
According to L=20lg (r1/r2), adjustment multiple is calculated, wherein, L is adjustment multiple, and r1 is default gauged distance
Value, r2 is sound from the audio amplifier to the length of the metope paths traversed；
Default standard output power P1 is adjusted by the adjustment multiple L, the adjustment power output P2 of audio amplifier is obtained；
Produce the corresponding adjust instructions of the adjustment power output P2.
Further, in the controller according to preset rules and the information of the space size, corresponding adjustment is produced
After instruction, in addition to：
Microphone receives the audio that the audio amplifier is played, and produces corresponding environmental background acoustic information；
The controller produces corresponding noise reduction audio information according to the environmental background acoustic information；
The audio amplifier is according to the noise reduction audio information, and the audio-frequency information to be played with the audio amplifier is played after being superimposed.
Beneficial effect：The invention provides the method for adjustment of a kind of video playback apparatus and audio amplifier power.Video playback is set
Standby to include controller and audio amplifier, the controller is used for the information of space size where obtaining video playback apparatus, according to default
The information of regular and described space size, produces corresponding adjust instruction, and the adjust instruction is used for the output work for adjusting audio amplifier
Rate；The audio amplifier is connected with the controller, for receiving the adjust instruction, and according to the adjust instruction with corresponding defeated
Go out power and play audio.Video playback apparatus can adjust the power output of audio amplifier according to the information of space size so that play
Audio preferably match current environment, obtain more preferable audio result of broadcast, lift customer experience.
Brief description of the drawings
Fig. 1 is the positive structure schematic for the video playback apparatus that the present invention is provided.
Fig. 2 is the structure schematic diagram for the video playback apparatus that the present invention is provided.
Fig. 3 is the side structure schematic diagram for the video playback apparatus that the present invention is provided.
Fig. 4 is the propagation schematic diagram of the sound of the top audio amplifier broadcasting for the video playback apparatus that the present invention is provided.
Fig. 5 is the propagation schematic diagram of the sound of the bottom audio amplifier broadcasting for the video playback apparatus that the present invention is provided.
Fig. 6 is that the audio amplifier and microphone of the video playback apparatus that the present invention is provided coordinate the schematic diagram of detecting distance.
Fig. 7 is the structured flowchart for the video playback apparatus that the present invention is provided.
Fig. 8 is the flow chart for the audio amplifier power regulating method that the present invention is provided.
Wherein：
Audio amplifier at the top of 1- controllers, 2- audio amplifiers, 21-, 22- bottoms audio amplifier, 23- woofers, 3- microphones, 41- metopes,
42- top surfaces.
Embodiment
For make present invention solves the technical problem that, the technical scheme that uses and the technique effect that reaches it is clearer, below
Technical scheme is further illustrated with reference to accompanying drawing and by embodiment.
Embodiment 1
As Figure 1-Figure 8, a kind of video playback apparatus is present embodiments provided.Video playback apparatus refers to play
The equipment of video and the audio corresponding with playing video, such as television set etc..Video playback apparatus is typically provided with being used to show
Show the display module of picture and the audio amplifier for playing audio.The video playback apparatus of the present embodiment includes controller 1, controller
1 is used for the information of space size where obtaining video playback apparatus, according to preset rules and the information of space size, produces corresponding
Adjust instruction, adjust instruction is used to adjust the power output of audio amplifier 2.The audio amplifier 2 of the video playback apparatus of the present embodiment and control
Device 1 processed is connected, and audio amplifier 2 is used to receive adjust instruction, and plays audio according to adjust instruction with corresponding power output.
The attenuation degree of sound of the space for being played in audio amplifier where video playback apparatus is different, than larger sky
Between decay it is more, and the decay in smaller space is less.Therefore, the controller 1 of the video playback apparatus of the present embodiment exists
After the information of space size where acquisition video playback apparatus, audio amplifier gain can be adjusted according to the information of space size or be declined
Subtract corresponding multiple, adjust power output so that the audio of broadcasting preferably matches current environment, obtain more preferable audio and broadcast
Effect is put, customer experience is lifted.The information of space size can as space size of the client according to where video playback apparatus,
Selected in the Back Up Option of video playback apparatus, or input corresponding parameter, controller 1 obtains corresponding parameter or choosing
After selecting, the power output of audio amplifier 2 is adjusted according to preset rules.The information of space size can also automatically be obtained by video playback apparatus
Take, such as coordinated by microphone 3 and audio amplifier 2 and obtained, or by setting distance measuring sensor etc..
In the present embodiment, the front of video playback apparatus is provided with viewing area, for display picture.Audio amplifier 2 includes
There are a variety of audio amplifiers, be separately positioned on different positions, form sound-channel voice box 2.Specifically, audio amplifier 2 includes two top sounds
Case 21, two bottom audio amplifiers 22 and woofer 23.Two top audio amplifiers 21 are located at the both sides at the top of viewing area, top respectively
The front of audio amplifier 21 towards video playback apparatus is set obliquely, and two bottom audio amplifiers 22 are located at the bottom of viewing area respectively,
Towards the front of video playback apparatus, woofer 23 can be arranged on the back side of video playback apparatus.Top audio amplifier 21, bottom
Audio amplifier 22 and woofer 23 are connected with controller 1 respectively, and according to the adjust instruction each received with corresponding power output
Play audio.Bottom audio amplifier 22 and top audio amplifier 21 can be high-pitched sound box or full-range cabinet, coordinate after woofer, can solve
All kinds of audio signals are analysed, multichannel surrounding effect is formed.In the prior art, Soundbar is typically using center-channel speaker, positioned at two
Two main sound boxs of side, two sidetone casees, two top audio amplifiers and woofer at top, simulate the effect of multichannel.
The video playback apparatus of the present embodiment eliminates the sidetone case and center-channel speaker of the left and right sides, simplifies loudspeaker box structure, and only leads to
Cross 5 audio amplifiers, then after being adjusted with hop controller 1 according to the information of the space size of use environment to each audio amplifier, also may be used
To simulate multichannel, good audio result of broadcast is obtained.
In order to be able to allow the information of space size where video playback apparatus automatic detection, in the present embodiment, video playback
Equipment also includes microphone 3.Audio amplifier 2, microphone 3 are connected with controller 1, and microphone 3 is used for the audio for receiving the broadcasting of audio amplifier 2.
As shown in fig. 6, by taking bottom audio amplifier 22 as an example, bottom audio amplifier 22 is sent after audio, (by taking metope 41 as an example) is reflected by barrier,
Received by microphone 3.When bottom audio amplifier 22 plays audio, controller 1 first records the broadcasting moment of audio, is received in microphone 3
To after corresponding audio, it is corresponding audio signal that controller 1 goes out the microphone signal that microphone 3 receives by multilevel iudge
Afterwards, record microphone 3 receives the time of reception of audio, the time difference for playing moment and the time of reception is calculated, further according to sound
Spread speed, can obtain sound and paths traversed at microphone 3 is returned to after reflection from bottom audio amplifier 22 to metope 41
Length, this length can be arrived to the distance of metope 41 as bottom audio amplifier 22, it is big as space where video playback apparatus
A kind of small information.
As shown in figure 8, the present embodiment additionally provides a kind of audio amplifier power regulating method, set applied to above-mentioned video playback
It is standby, including：
S1:The information of space size where controller 1 obtains video playback apparatus；
S2:Controller 1 produces corresponding adjust instruction according to preset rules and the information of space size, and adjust instruction is used
In the power output of adjustment audio amplifier 2；
S3:Audio amplifier 2 receives adjust instruction, and plays audio according to adjust instruction with corresponding power output.
The information of space size of the controller 1 of the video playback apparatus of the present embodiment where video playback apparatus is obtained
Afterwards, audio amplifier gain or corresponding multiple of decaying can be adjusted according to the information of space size, power output is adjusted so that broadcasting
Audio preferably matches current environment, obtains more preferable audio result of broadcast, lifts customer experience.
In the present embodiment, in the space where video playback apparatus, the region of the direction of bottom audio amplifier 22 has metope 41,
The information of space size can refer to sound from audio amplifier 2 to the length of the paths traversed of metope 41.Because sound is sent out from audio amplifier 2
After going out, it can decay in the path of process.Using metope 41 as behind the border in space, controller 1 can be according to the big of this space
It is small, i.e., go out the pad value of sound to the length computation of the paths traversed of metope 41 from audio amplifier 2 according to sound, and then adjust audio amplifier
Power output, to match current environment, obtain more preferable audio visual effect.
For the video playback apparatus with multiple audio amplifiers, controller 1 is needed according to each audio amplifier or every group of sound
Case plays the length of the propagation path of sound, calculates corresponding pad value, and then adjust the power output of each audio amplifier respectively.
As shown in Figure 4 and Figure 5, in the present embodiment, controller 1 needs respectively to be adjusted bottom audio amplifier 22 and top audio amplifier 21.
Space where video playback apparatus has top surface 42 in the top of video playback apparatus video playback apparatus, due to top audio amplifier
21 are set obliquely, and the sound that top audio amplifier 21 is played reaches user region after the reflection of top surface 42, and (this sentences metope
41 substitute), the sound that bottom audio amplifier 22 is played is directly toward front and reaches metope user region.Therefore, it is empty in this implementation
Between the information of size include the first distance value and second distance value, the first distance value represented between bottom audio amplifier 22 and metope 41
Distance.Second distance value represents that referring to direction of the sound along top audio amplifier 21 propagates, and reflexes to metope 41 by top surface 42 and passes through
The length in the path crossed.Controller 1 needs to play the length of the propagation path of sound, meter according to each audio amplifier or every group of audio amplifier
Corresponding pad value is calculated, and then adjusts the power output of each audio amplifier respectively.
The information of space size where controller 1 obtains video playback apparatus can pass through the either automatic inspection of user's input
Survey and obtain.Such as, video playback apparatus provides the user corresponding parameter input, or is to provide corresponding option, passes through visitor
Family itself inputs corresponding space size, such as video playback apparatus is from a distance from positive metope etc., or directly selects big
Space, hollow or small space etc..Video playback apparatus can also be coordinated by microphone and audio amplifier, and video playback is obtained automatically
The information of the space size of equipment.It can specifically include：
The record audio amplifier 2 of controller 1 plays the broadcasting moment of audio；
The record microphone 3 of controller 1 receives the time of reception of audio；
Controller 1 calculates the time difference for playing moment and the time of reception,
Controller 1 calculates sound from audio amplifier 2 to the length of the paths traversed of metope 41 according to the time difference.
As shown in Figure 5 and Figure 6, by taking bottom audio amplifier 22 as an example, bottom audio amplifier 22 is sent after audio, is reflected by barrier
(by taking metope 41 as an example), is received by microphone.When bottom audio amplifier 22 plays audio, controller 1 first records the broadcasting moment of audio,
After microphone 3 receives corresponding audio, controller 1 goes out the microphone signal that microphone 3 receives by multilevel iudge and is
After corresponding audio signal, record microphone 3 receives the time of reception of audio, calculates the time for playing moment and the time of reception
Difference, further according to the spread speed of sound, can obtain sound and microphone 3 is returned to after reflection from bottom audio amplifier 22 to metope 41
Locate the length of paths traversed (being represented in figure with r21), this length can be used as the first distance value.
As shown in figure 4, being pressed from both sides because sound reflexes to the paths traversed of metope 41 by top surface 42 with distance from top h and audio amplifier
Angle a length is relevant.Therefore, produced in controller 1 according to preset rules and the information of space size for adjusting audio amplifier 2
Also include before adjust instruction：
Controller 1 is according to the first distance value (with the length in the r21 paths represented in figure), distance from top h and audio amplifier angle a
Second distance value is calculated, wherein, distance from top h is distance of the top audio amplifier 21 apart from top surface 42, and audio amplifier angle a is top sound
Case 21 and video playback apparatus just facing to angle complementary angle.Specifically, three kinds of space size regions are illustrated in Fig. 4
The propagation path of the sound of (metope 41 to video playback apparatus has different apart from r21) next top audio amplifier, according to first away from
Acquisition can be calculated from value, distance from top h and audio amplifier angle a.
In the present embodiment, according to preset rules, producing corresponding adjust instruction includes：
According to L=20lg (r1/r2), adjustment multiple is calculated, wherein, L is adjustment multiple, and r1 is default gauged distance
Value, r2 is sound from audio amplifier 2 to the length of the paths traversed of metope 41；
Default standard output power P1 is adjusted by adjustment multiple L, the adjustment power output P2 of audio amplifier 2 is obtained；
Produce the corresponding adjust instructions of adjustment power output P2.
So that r1 is 4 meters of default gauged distance value as an example, for the audio amplifier of bottom, if the distance of metope is 3m,
It can draw under the space with the distance of bottom audio amplifier for 3m metope, bottom audio amplifier needs the 2.5dB that decays.Likewise,
For under the space with the distance of bottom audio amplifier for 5m metope, bottom audio amplifier needs to increase 1.9dB.
For the audio amplifier of top, using height of house as 3 meters, height of table top is 50 centimetres, 1.2 meters of user's sitting height, with 50
Very little TV for that exemplified by 70 centimetres, can calculate distance from top h for 1.8m, if audio amplifier angle a is 20 °, can highly be calculated
Go out top audio amplifier with the distance of bottom audio amplifier for 3m metope space in need decay 1.4dB, and with bottom audio amplifier
Distance needs to increase 1.3dB in the space for 5m metope, to meet different environment (the such as different skies such as parlor, horizontal
Between under size) demand.
Above-mentioned method of adjustment is adapted with decay of the sound in communication process, can be according to the size in space, accurately
Adjustment audio amplifier power output, preferably match more preferable audio result of broadcast in different environment, lift user's body
Test.In actual use, user can also further be carried out corresponding on the basis of the adjustment of controller 1 according to the custom of oneself
Each several part audio amplifier adjustment, meet the demand of user.
In the present embodiment, in controller 1 according to preset rules and the information of space size, corresponding adjust instruction is produced
Afterwards, in addition to：
Microphone 3 receives the audio that audio amplifier 2 is played, and produces corresponding environmental background acoustic information；
Controller 1 produces corresponding noise reduction audio information according to environmental background acoustic information；
Audio amplifier 2 is according to noise reduction audio information, and the audio-frequency information to be played with audio amplifier 2 is played after being superimposed.
Audio amplifier 2 has been superimposed after the audio-frequency information with broadcasting and noise reduction audio information, the sound that noise reduction audio information correspondence is played
Frequency can offset environmental background sound, so as to can preferably protrude audio-frequency information to be played in current environment, reach drop
The effect made an uproar, lifts the experience of user.In general, noise reduction audio information is the sound with environmental background acoustic information opposite in phase
Frequency information, the sound that audio amplifier 2 is played using noise reduction audio information is consistent with the amplitude of environmental background sound, opposite in phase, in sky
Eliminated each other after middle superposition, reach the effect of noise reduction.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to the present invention's
Thought, will change in specific embodiments and applications, and this specification content should not be construed as to the present invention
Limitation.
Claims (10)
1. a kind of video playback apparatus, it is characterised in that including：
Controller (1), the information of space size, big according to preset rules and the space where for obtaining video playback apparatus
Small information, produces corresponding adjust instruction, and the adjust instruction is used for the power output for adjusting audio amplifier (2)；
Audio amplifier (2), is connected with the controller (1), for receiving the adjust instruction, and according to the adjust instruction with corresponding
Power output play audio.
2. video playback apparatus as claimed in claim 1, it is characterised in that the front of the video playback apparatus is provided with aobvious
Show region, the audio amplifier (2) includes：
Two top audio amplifiers (21), both sides at the top of the viewing area respectively, the top audio amplifier (21) is towards described
The front of video playback apparatus is set obliquely；
Two bottom audio amplifiers (22), respectively positioned at the bottom of the viewing area, towards the front of the video playback apparatus；With
Woofer (23)；
The top audio amplifier (21), the bottom audio amplifier (22) and the woofer (23) formation sound-channel voice box (2)；
The top audio amplifier (21), the bottom audio amplifier (22) and the woofer (23) respectively with the controller (1) phase
Even, and according to the adjust instruction each received with corresponding power output audio is played.
3. video playback apparatus as claimed in claim 2, it is characterised in that also include：
Microphone (3), is connected with the controller (1), the audio for receiving the audio amplifier (2) broadcasting；
The controller (1) plays the broadcasting moment of audio according to the audio amplifier (2) and microphone (3) receives connecing for the audio
Time receiving carves, and calculates the time difference for playing moment and the time of reception, space size where obtaining video playback apparatus
Information.
4. a kind of audio amplifier power regulating method, applied to the video playback apparatus described in any one of claims 1 to 3, its feature
It is, including：
The information of space size where the controller (1) obtains video playback apparatus；
The controller (1) produces corresponding adjust instruction, the adjustment according to preset rules and the information of the space size
Instruct the power output for adjusting audio amplifier (2)；
The audio amplifier (2) receives the adjust instruction, and plays audio according to the adjust instruction with corresponding power output.
5. audio amplifier power regulating method as claimed in claim 4, it is characterised in that the space where the video playback apparatus
In, the region of bottom audio amplifier (22) direction has metope (41), and the information of the space size refers to sound from the sound
Case (2) arrives the length of the metope (41) paths traversed.
6. audio amplifier power regulating method as claimed in claim 5, it is characterised in that the space where the video playback apparatus
There is top surface (42) in the top of the video playback apparatus；
The information of the space size includes the first distance value and second distance value, and first distance value represents the bottom sound
The distance between case (22) and the metope (41)；
The second distance value represents that referring to direction of the sound along the top audio amplifier (21) propagates, anti-by the top surface (42)
It is mapped to the length of the metope (41) paths traversed.
7. audio amplifier power regulating method as claimed in claim 6, it is characterised in that in the controller (1) according to default rule
Then with the information of the space size, also include before producing the adjust instruction for being used for adjusting the audio amplifier (2)：
The controller (1) calculates the second distance value according to first distance value, distance from top h and audio amplifier angle a,
Wherein, the distance from top h is distance of the top audio amplifier (21) apart from the top surface (42), and the audio amplifier angle a is top sound
Case (21) and the video playback apparatus just facing to angle complementary angle.
8. the audio amplifier power regulating method as described in claim 5 or 6, it is characterised in that the controller (1) obtains video and broadcast
The information of space size includes where putting equipment：
Controller (1) the record audio amplifier (2) plays the broadcasting moment of audio；
Controller (1) the record microphone (3) receives the time of reception of the audio；
The controller (1) calculates the time difference for playing moment and the time of reception,
The controller (1) calculates what sound was passed through from the audio amplifier (2) to the metope (41) according to the time difference
The length in path.
9. the audio amplifier power regulating method as described in any one of claim 5~7, it is characterised in that according to preset rules, is produced
Corresponding adjust instruction includes：
According to L=20lg (r1/r2), adjustment multiple is calculated, wherein, L is adjustment multiple, and r1 is default gauged distance value,
R2 is sound from the audio amplifier (2) to the length of the metope (41) paths traversed；
Default standard output power P1 is adjusted by the adjustment multiple L, the adjustment power output P2 of audio amplifier (2) is obtained；
Produce the corresponding adjust instructions of the adjustment power output P2.
10. the audio amplifier power regulating method as described in any one of claim 4~6, it is characterised in that in the controller (1)
According to preset rules and the information of the space size, after producing corresponding adjust instruction, in addition to：
Microphone (3) receives the audio that the audio amplifier (2) is played, and produces corresponding environmental background acoustic information；
The controller (1) produces corresponding noise reduction audio information according to the environmental background acoustic information；
The audio amplifier (2) is according to the noise reduction audio information, and the audio-frequency information to be played with the audio amplifier (2) is played after being superimposed.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108391204A (en) * | 2018-03-27 | 2018-08-10 | 深圳市沃特沃德股份有限公司 | The method and apparatus for adjusting speaker audio based on environment sensing |
| CN109040911A (en) * | 2018-10-12 | 2018-12-18 | 上海摩软通讯技术有限公司 | The determination method of intelligent sound box and its target placement location |
| CN109309891A (en) * | 2018-09-27 | 2019-02-05 | 歌尔科技有限公司 | A kind of audio frequency apparatus and its effect adjusting method |
| CN110933559A (en) * | 2019-11-28 | 2020-03-27 | 深圳创维－Rgb电子有限公司 | Intelligent sound box sound effect self-adaptive adjusting method and system and storage medium |
| CN112822330A (en) * | 2019-10-31 | 2021-05-18 | 北京小米移动软件有限公司 | Space detection method and device, mobile terminal and storage medium |
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| CN108391204B (en) * | 2018-03-27 | 2020-02-21 | 深圳市沃特沃德股份有限公司 | Method and device for adjusting audio frequency of sound box based on environment perception |
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| CN109309891B (en) * | 2018-09-27 | 2020-11-10 | 歌尔科技有限公司 | Audio equipment and sound effect adjusting method thereof |
| CN109040911A (en) * | 2018-10-12 | 2018-12-18 | 上海摩软通讯技术有限公司 | The determination method of intelligent sound box and its target placement location |
| CN112822330A (en) * | 2019-10-31 | 2021-05-18 | 北京小米移动软件有限公司 | Space detection method and device, mobile terminal and storage medium |
| CN112822330B (en) * | 2019-10-31 | 2022-06-10 | 北京小米移动软件有限公司 | Space detection method and device, mobile terminal and storage medium |
| CN110933559A (en) * | 2019-11-28 | 2020-03-27 | 深圳创维－Rgb电子有限公司 | Intelligent sound box sound effect self-adaptive adjusting method and system and storage medium |
| CN110933559B (en) * | 2019-11-28 | 2021-08-31 | 深圳创维－Rgb电子有限公司 | Intelligent sound box sound effect self-adaptive adjusting method and system and storage medium |
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