CN207665193U - Power amplifier is broadcasted in stereo prime meeting - Google Patents
Power amplifier is broadcasted in stereo prime meeting Download PDFInfo
- Publication number
- CN207665193U CN207665193U CN201721263659.1U CN201721263659U CN207665193U CN 207665193 U CN207665193 U CN 207665193U CN 201721263659 U CN201721263659 U CN 201721263659U CN 207665193 U CN207665193 U CN 207665193U
- Authority
- CN
- China
- Prior art keywords
- power amplifier
- audio signal
- audio
- gain
- input circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
The utility model discloses a kind of stereo prime meetings to broadcast power amplifier, including：Microphone input interface；Stereo input interface；Power amplifier module, including power amplifier, the first audio signal input circuit, the second audio signal input circuit and audio output circuit；First audio input circuit is for handling the audio signal that microphone input interface is inputted, include balanced device adjustment module and reverberation adjustment module successively, the microphone input interface is electrically connected at the front end of the first audio signal circuit, and the power amplifier is electrically connected at the rear end of the first audio input circuit；Second audio input circuit includes high low pitch section module, and the power amplifier is electrically connected at the rear end of the second audio input circuit；The audio output circuit is electrically connected at the signal output end of power amplifier；And multiple loud speakers.The utility model is used to adjust microphone source of sound, and sound frequency intervention is carried out according to spokesman, performing artist.
Description
Technical field
The utility model is related to a kind of broadcast audio audios to improve equipment more particularly to a kind of stereo prime meeting broadcast
Power amplifier.
Background technology
Currently, relatively simple using the stereo prime power amplifying device function in meeting room, hall, most products are only
The size and the high low pitch section of microphone of source of sound volume can be controlled；The limitation of this mode can be larger, fails to meet certain
Extraordinary meeting room, directory performance, the specific demands such as vocal mimicry performance.For example, during meeting or modern drama are performed, each spokesman
The range spoken has differences, if microphone perception sound it is unprocessed, spectators can feel it is various distortion, it is uncomfortable even
Feel bad.
Utility model content
In order to solve the above-mentioned technical problem, stereo prime meeting broadcast power amplifier is disclosed in the utility model, is had
Outside conventional stereo power amplification function, it is also equipped with the well-balanced adjustment based on microphone input source of sound, compensates each frequency of voice
Point is insufficient and carries out sound frequency intervention according to spokesman, performing artist's current scene.The technical solution of the utility model is this
What sample was implemented：
Power amplifier is broadcasted in stereo prime meeting, including：
Microphone input interface is used for for the grafting of external microphone connector wherein；
Stereo input interface, wherein for the audio connector grafting for external multimedia equipment；
Power amplifier module, including power amplifier, the first audio signal input circuit, the second audio signal input circuit
And audio output circuit；First audio input circuit is used to handle the audio signal that microphone input interface is inputted,
Include balanced device adjustment module and reverberation adjustment module successively, the microphone input interface is electrically connected at the first audio signal
The front end of circuit, the power amplifier are electrically connected at the rear end of the first audio input circuit；The second audio input electricity
Road includes high low pitch section module, and the power amplifier is electrically connected at the rear end of the second audio input circuit；The audio
Output circuit is electrically connected at the signal output end of power amplifier；
Multiple loud speakers are electrically connected at the audio output circuit.
Preferably, the first audio signal input circuit and the second audio signal input circuit are equipped with volume adjustment
Module.
Preferably, the balanced device adjustment module has the control unit of multiple sound frequencies segmentation, the first control unit
Gain or decaying for adjusting 20~60Hz sound waves；Second control unit is used to adjust the gain of 60~100Hz sound waves or declines
Subtract；Third control unit is used to adjust the gain or decaying of 100~200Hz；4th control unit is for adjusting 200~500Hz
The gain or decaying of sound wave；The gain or decaying of 500~1KHz；5th control unit is used to adjust the gain of 1K~2KHz sound waves
Or decaying；The gain or decaying of 2K~4KHz；6th control unit is used to adjust the gain or decaying of 4K~8KHz sound waves；7th
Control unit is used to adjust the gain or decaying of 8K~1.6KHz sound waves.
Compared to the prior art, the beneficial effects of the utility model are：It is different from conventional sound equipment and loudspeaker, is used
People can carry out higher frequency band, the intervention adjusting compared with low-frequency range and Mid Frequency, avoid listening according to the characteristic voice of spokesman
Many auditory fatigues and discomfort, and make spokesman/performing artist more influential.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is a kind of embodiment of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the circuit module schematic diagram of the utility model；
The outside drawing (backsight) of the positions Fig. 2 the utility model.
In above-mentioned each attached drawing, 1, microphone input interface；2, well-balanced adjustment module；3, reverberation adjustment module；4, power amplifier electricity
Road module；5, stereo input interface；6, high low pitch section module；7, loud speaker.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, power amplifier is broadcasted in stereo prime meeting, including：
Microphone input interface is used for for the grafting of external microphone connector wherein；
Stereo input interface, wherein for the audio connector grafting for external multimedia equipment；
Power amplifier module, including power amplifier, the first audio signal input circuit, the second audio signal input circuit
And audio output circuit；First audio input circuit is used to handle the audio signal that microphone input interface is inputted,
Include balanced device adjustment module and reverberation adjustment module successively, the microphone input interface is electrically connected at the first audio signal
The front end of circuit, the power amplifier are electrically connected at the rear end of the first audio input circuit；The second audio input electricity
Road includes high low pitch section module, and the power amplifier is electrically connected at the rear end of the second audio input circuit；The audio
Output circuit is electrically connected at the signal output end of power amplifier；
Multiple loud speakers are electrically connected at the audio output circuit.
As a preferred solution, the first audio signal input circuit and the second audio signal input circuit are equal
Equipped with volume adjusting module.
As a preferred solution, the balanced device adjustment module has the control unit of multiple sound frequencies segmentation,
First control unit is used to adjust the gain or decaying of 20~60Hz sound waves；Second control unit is for adjusting 60~100Hz sound
The gain or decaying of wave；Third control unit is used to adjust the gain or decaying of 100~200Hz；4th control unit is for adjusting
Save the gain or decaying of 200~500Hz sound waves；The gain or decaying of 500~1KHz；5th control unit for adjust 1K~
The gain or decaying of 2KHz sound waves；The gain or decaying of 2K~4KHz；6th control unit is for adjusting 4K~8KHz sound waves
Gain or decaying；7th control unit is used to adjust the gain or decaying of 8K~1.6KHz sound waves.
20~60Hz：Very dull, human ear is difficult to feel if loudness height.
60~100Hz：Heavy, frequency about will produce extremely strong " double infection " effect near 80Hz, and loudness is higher also not
It can give people comfortable feeling, and strong impulse effect can be given.
100~200Hz：The sense of hearing is plentiful.
200~500Hz：Easily cause droning unhappy psychology, should inhibit.
500~1KHz：It is bright and clear, but about a kind of noisy sense, narrow sense can be obviously generated in the sound wave 10dB of 800Hz.
1K~2KHz：It is bright
2K~4KHz：Sharply, nearby bright sense relationship is maximum by about 2800Hz, and 3400Hz easily causes auditory fatigue.
4K~8KHz：Clear and melodious, about 6800Hz formation screams, sharp keen feeling,>7.5KHz tone senses are clear thorough very thin.
8K~16KHz：It is very thin.
It should be pointed out that the above is only the preferred embodiment of the utility model only, not limiting this reality
With novel, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all include
It is within the protection scope of the utility model.
Claims (3)
1. power amplifier is broadcasted in stereo prime meeting, which is characterized in that including,
Microphone input interface is used for for the grafting of external microphone connector wherein；
Stereo input interface, wherein for the audio connector grafting for external multimedia equipment；
Power amplifier module, including power amplifier, the first audio signal input circuit, the second audio signal input circuit and
Audio output circuit；The first audio signal input circuit is used to handle the audio signal that microphone input interface is inputted,
Include balanced device adjustment module and reverberation adjustment module successively, the microphone input interface is electrically connected at the first audio signal
The front end of circuit, the power amplifier are electrically connected at the rear end of the first audio signal input circuit；The second audio letter
Number input circuit includes high low pitch section module, after the power amplifier is electrically connected at the second audio signal input circuit
End；The audio output circuit is electrically connected at the signal output end of power amplifier；
Multiple loud speakers are electrically connected at the audio output circuit.
2. power amplifier is broadcasted in stereo prime meeting as described in claim 1, it is characterised in that：The first audio signal input
Circuit and the second audio signal input circuit are equipped with volume adjusting module.
3. power amplifier is broadcasted in stereo prime meeting as described in claim 1, it is characterised in that：The balanced device adjustment module tool
There are the control unit of multiple sound frequency segmentations, the first control unit to be used to adjust the gain or decaying of 20~60Hz sound waves；The
Two control units are used to adjust the gain or decaying of 60~100Hz sound waves；Third control unit is for adjusting 100~200Hz's
Gain or decaying；4th control unit is used to adjust the gain or decaying of 200~500Hz sound waves；The gain of 500~1KHz declines
Subtract；5th control unit is used to adjust the gain or decaying of 1K~2KHz sound waves；The gain or decaying of 2K~4KHz；6th control
Unit is used to adjust the gain or decaying of 4K~8KHz sound waves；7th control unit is used to adjust the gain of 8K~1.6KHz sound waves
Or decaying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721263659.1U CN207665193U (en) | 2017-09-27 | 2017-09-27 | Power amplifier is broadcasted in stereo prime meeting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721263659.1U CN207665193U (en) | 2017-09-27 | 2017-09-27 | Power amplifier is broadcasted in stereo prime meeting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207665193U true CN207665193U (en) | 2018-07-27 |
Family
ID=62936057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721263659.1U Active CN207665193U (en) | 2017-09-27 | 2017-09-27 | Power amplifier is broadcasted in stereo prime meeting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207665193U (en) |
-
2017
- 2017-09-27 CN CN201721263659.1U patent/CN207665193U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9508335B2 (en) | Active noise control and customized audio system | |
| US9674330B2 (en) | Method of improving sound quality of mobile communication terminal under receiver mode | |
| US11457319B2 (en) | Hearing device incorporating dynamic microphone attenuation during streaming | |
| JP2017510200A (en) | Coordinated audio processing between headset and sound source | |
| CN102982823A (en) | Method and device for adjusting volume automatically | |
| CN209642968U (en) | Bone conduction conductance double type hearing aid | |
| CN109310525A (en) | Media compensation passes through and pattern switching | |
| JPH09140000A (en) | Loud hearing aid for conference | |
| US20220246161A1 (en) | Sound modification based on frequency composition | |
| US20170118571A1 (en) | Electronic apparatus and sound signal adjustment method thereof | |
| WO2006051586A1 (en) | Sound electronic circuit and method for adjusting sound level thereof | |
| CN104754462A (en) | Automatic regulating device and method for volume and earphone | |
| CN109257676B (en) | Bluetooth headset system based on audio distortion compensation technology | |
| CN106792365B (en) | Audio playing method and device | |
| US20200045482A1 (en) | Methods for hearing-assist systems in various venues | |
| JP2016110050A (en) | Voice processor, voice clearing device, and voice processing method | |
| CN109814833A (en) | A kind of real-time control frequency response output device and its application method | |
| Einhorn | Hearing aid technology for the 21st century: A proposal for universal wireless connectivity and improved sound quality | |
| CN112995854A (en) | Audio processing method and device and electronic equipment | |
| CN207665193U (en) | Power amplifier is broadcasted in stereo prime meeting | |
| JP2008228198A (en) | Apparatus and method for adjusting playback sound | |
| CN108806710B (en) | Voice enhancement gain adjustment method, system and earphone | |
| CN102469399A (en) | Noise-reduction hearing aid | |
| US12022271B2 (en) | Dynamics processing across devices with differing playback capabilities | |
| KR20190056486A (en) | Audio system and method of controlling the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |