CN109246549A - A kind of 5.8GHz frequency band audio network system realization and toneable wireless microphone - Google Patents
A kind of 5.8GHz frequency band audio network system realization and toneable wireless microphone Download PDFInfo
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- CN109246549A CN109246549A CN201811046570.9A CN201811046570A CN109246549A CN 109246549 A CN109246549 A CN 109246549A CN 201811046570 A CN201811046570 A CN 201811046570A CN 109246549 A CN109246549 A CN 109246549A
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- signal
- wireless microphone
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- frequency band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
Abstract
It the present invention relates to a kind of implementation method of 5.8GHz frequency band audio system, the steps include: that configuration has the wireless microphone of digital control switch, high-frequency signal emitted using 5.8GHz frequency range；At least three kinds adjusting control modes are arranged in wireless microphone, including volume adjustment, the big minor adjustment of echo, echo time are adjusted, and after any instruction triggers for adjusting control mode, wireless microphone issues instruction digital signal to power amplification sound box ontology；Speech simulation signal is converted to audio digital signals by wireless microphone, and is sent to power amplification sound box ontology together with instruction digital signal；Power amplification sound box ontology sends treated 5.8GHz frequency range high-frequency signal to the subwoofer speaker of system configuration.The present invention can not only solve the problems, such as that sound is interfered by external device, while audio digital signals transmission, can provide the transmission of corresponding control instruction signal together by integrating 5.8GHz Radio Transmission Technology and a variety of regulatory functions in microphone body.
Description
Technical field
The present invention relates to the implementation method of audio frequency apparatus technical field more particularly to a kind of 5.8GHz frequency band audio system and
Its used toneable wireless microphone.
Background technique
In existing audio power amplification system, including a series of important component parts, such as microphone (microphone), power amplifier list
Member and speaker part, wherein the devices such as microphone, microphone according to usage scenario, application mode, use demand etc. frequently with
The product of different model, different volumes, the due effect of occasion where capable of being played in order to the system constituted, for example, being
System usually has several pocket transmitters and a concentration receiver, and every pocket transmitter has a mutually different work
Working frequency concentrates receiver that can receive the voice signal for the different operating frequency that the pocket transmitter in each portion issues simultaneously, such
Audio system is applicable to stage, dais, public place of entertainment etc..
Microphone (microphone) is configured as stand in the breach the important link in audio system, has needed to configure the ring
A power amplifier unit and corresponding speaker part are saved and then passed sequentially through, audio signal is handled, and audio is believed
It number is transformed to sound and carries out power amplifier, for microphone (microphone) subsequent link, the speaker part of some systems and power amplifier unit
Two independent two part arrangements (prime and rear class) are set as, prime is generally such as balanced tuning device for adjusting sound quality
In device, karaoke machine etc. are also included within, rear class is put for net work, is the power amplifier for driving speaker；Certainly, also
The speaker part of some systems and power amplifier unit are set as amalgamation formula power amplification device, can be in speaker host cabinet or subwoofer
Power amplifier is set in cabinet, audio signal is amplified, sound is played back out by speaker itself after handling, become its sound
Greatly.
Certainly, in order to enhance acoustical quality, many audio systems are all made of subwoofer sound more popular at present, i.e., heavy
Sound is divided into several frequency bands by frequency divider by woofer, built-in power amplifier, and high frequency section is output to satellite
Speaker, low-frequency range are output to subwoofer, and the general low-frequency sound for issuing 20-200HZ, human ear is difficult to distinguish sound when energy is not strong
Source orientation, such low-frequency sound are spread out of by paraphase hole, generate resonance, Low frequency horn and satellite loudspeaker with satellite Horn loudspeaker box
The faint bass that speaker generates combines, and satellite Horn loudspeaker box will discharge bass by performing art loudspeaker again, then, what generation more shook
Bass effect.
In conjunction with the above system for constituting audio input device and power amplifying device and constituting, the present invention carries out the technology of conceptual design
Personnel are to discovery after the existing audio power amplification system analysis constituted using wireless microphone, current audio input-output device
It is formed by corresponding system, constitutes the links generally easy interference by extraneous other non-audio equipment of system body,
And the function of system equipment itself adjust when have apparent limitation, be not easy to according to use occasion to system function into
The reason of row is flexibly adjusted, and causes the problem mainly includes following two factor:
1. electronic equipment is dry other than the similar audio system of low-frequency range, associated device and non-audio system
Factor is disturbed, due to audio input and output system, audio power amplification system etc., generallys use wireless microphone on the market at present,
It and is still the office space more for general domestic environment or office equipment by way of 2.4G or Bluetooth transmission
Deng, it is easy to by the interference of the equipment such as WIFI radio base station, home telephone, micro-wave oven, even with corresponding anti-
Jamming equipment, since audio frequency apparatus position needs to be carried out accordingly according to the difference of use occasion or the different of use demand
Evolution, for example, microphone apparatus, it will usually anti-interference to set as the different location where user is accordingly moved
The effect that preparation is waved is also different, in fact, user can not in addition disperse energy at all judge itself present position whether be
Anti-interference area, also can not more avoid interference area, finally still be unable to ensure the effect of equipment normal use；
2. currently used microphone body only has sound for audio input and output system, audio power amplification system etc.
Amount adjusts the easy function point analysis such as control and power switch, must arrive host to the sound effect functions such as adjustment feedback, delay
End is operated with main engine remote control device, is not easy to real-time flexible modulation；
3. the sound that used wireless microphone after by sound pick-up acquisitor acoustic simulation signal, can not will be converted
Frequency signal and the control signal of audio realize synchronous transfer, cause the adjusting of audio multiple functions only can be enterprising in power amplifying device
Row.
In conclusion the present invention is exactly on the basis of existing well-known technique, in conjunction with the verifying of practical application, to same skill
Product structure in art field proposes further research and development, the sound that used technical solution passes through outfit toneable wireless microphone
Display system is realized under the conditions of 5.8GHz frequency range, digital audio and video signals and microphone itself can be adjusted control signal simultaneously
It is wirelessly transferred together, the technical solution proposed can solve problem of the existing technology completely, while be also beneficial to same
The solution of numerous technical problems of one technical field and the expansibility for the scheme that develops skill.
Summary of the invention
For disadvantages described above, the present invention provide a kind of 5.8GHz frequency band audio system implementation method and its toneable it is wireless
Microphone, provided implementation method is by integrating 5.8GHz Radio Transmission Technology and disc-jockey functionality in microphone body, not only
The disturbed problem of sound is advantageously accounted for, and while audio digital signals transmission, control signal can also be provided together
Transmission, while solving the deficiencies in the prior art.
To achieve the above object, the invention adopts the following technical scheme:
A kind of implementation method and its toneable wireless microphone of 5.8GHz frequency band audio system, comprising the following steps:
(1), wireless microphone of the configuration one with digital control switch uses 5.8GHz frequency range transmitting high frequency letter to step
Number；
(2), at least three kinds adjusting control modes, including volume adjustment, the big ditty of echo are arranged in the wireless microphone to step
Section, echo time are adjusted, after any instruction triggers for adjusting control mode, power amplifier of the wireless microphone to system configuration
Speaker body issues instruction digital signal corresponding with the regulating control command；
(3), the speech simulation signal that the wireless microphone collects its own is converted to audio digital signals to step, and
And the power amplification sound box ontology is sent to together with described instruction digital signal, the power amplification sound box ontology configuration ADAU1701 letter
Number processing and is handled the 5.8GHz frequency range high-frequency signal received chip；
(4), it is high that the power amplification sound box ontology to the subwoofer speaker of system configuration sends treated 5.8GHz frequency range to step
Frequency signal, the subwoofer speaker carry out power amplification.
Further include following any one for the additional structure of above technical scheme:
Collection for sound, the wireless microphone pass through sound pick-up acquisitor's acoustic simulation signal；
Correspondingly, before the wireless microphone will send signal to the power amplification sound box ontology, digital signal is first passed through
Cross digital modulation.
Internal to use FR6391 processing unit for wireless microphone, the processing unit is by 4558 integrated packages, PT2399
Integrated package and PT2259 integrated package are integrated on an IC and are packaged.
For power amplification sound box ontology, external sound source input is supported, and do with the audio from the wireless microphone
Then reverberation carries out power amplification.
It is internal to be configured with TPA3116 power amplifier unit for subwoofer speaker；
In addition, the external sound source input includes that bluetooth inputs.
In conjunction with the technological means more than present invention used, can also following technical scheme be formed:
A kind of toneable wireless microphone for 5.8GHz frequency band audio system, comprising:
First digital control switch sends corresponding control for carrying out volume adjustment control, and to external power amplifier unit
Instruct digital signal；
Second digital control switch, for carrying out the big minor adjustment control of echo, and it is corresponding to the transmission of external power amplifier unit
Control instruction digital signal；
Third digital control switch adjusts control for carrying out echo time, and corresponding to the transmission of external power amplifier unit
Control instruction digital signal；
Signal conversion module for making the speech simulation signal collected be converted to audio digital signals, and passes through
5.8GHz frequency range sends the audio digital signals and corresponding control instruction number letter to the external power amplifier unit together
Number.
Correspondingly, toneable wireless microphone further includes a gauss low frequency filter, for limiting the audio number after converting
The spectrum width of word signal.
The invention has the following beneficial effects:
By integrating 5.8GHz Radio Transmission Technology and a variety of regulatory functions in microphone body, solution sound is not only contributed to
The problem of sound is interfered by external device can provide corresponding control instruction signal while audio digital signals transmission together
Transmission, in the system, it is only necessary to which microphone can be achieved at the same time sounding, control volume, the big minor adjustment of echo, return
The functions such as sound time adjustment.
Detailed description of the invention
Below according to attached drawing, invention is further described in detail.
Fig. 1 is the sound equipment power amplifier schematic diagram of 5.8GHz frequency band audio system described in the embodiment of the present invention；
Fig. 2 is the work of toneable formula wireless microphone used by 5.8GHz frequency band audio system described in the embodiment of the present invention
Schematic illustration；
Fig. 3 is the process signal of signal transmitting and receiving between the equipment of 5.8GHz frequency band audio system described in the embodiment of the present invention
Figure；
Fig. 4 is the used ADAU1701 signal processing chip of 5.8GHz frequency band audio system described in the embodiment of the present invention
Pin schematic diagram；
Fig. 5 is the used ADAU1701 signal processing unit of 5.8GHz frequency band audio system described in the embodiment of the present invention
Circuit connection diagram.
Specific embodiment
Embodiment one
As shown in Figs. 1-5, the technical solution that the embodiment of the present invention one uses is related to a kind of 5.8GHz frequency band audio system
Implementation method, the technological means implemented purpose to be achieved are, solve in the past by each audio input-output device institute structure
At corresponding audio system during carrying out signal transmission, it is easy to appear the poor problem of transmission performance, including transmission
Unstability and limitation, the service performance and application range that the two factors lead to audio system are by biggish limit
System, the test and analysis of personnel, has found the reason of causing the problem after study, i.e., transmits and be easy under the conditions of 2.4GHz
By electronic equipment other than similar audio system, associated device and non-audio system interference and cause signal transmission, sound
The pickup of sound and sounding are unstable, meanwhile, even if in the case where transmitting stable, the controllability of microphone apparatus itself
Also there is apparent limitation, be not easy to flexibly adjust, especially microphone volume, echo size, echo time.
In order to solve the above technical problems, the technical solution that the present invention is implemented preferably uses real under the conditions of 5.8GHz frequency range
Apply, firstly, 5.8GHz frequency range is an ISM band higher, more open than current 2.4GHZ frequency, conform to 802.11a,
The international standards such as FCC Part 15, ETSI EN 301 489, ETSI EN 301 893, EN 50385, EN 60950,5.8G
System channel it is higher compared with multi-frequency, strong antijamming capability；
Correspondingly, using a toneable formula wireless microphone, digital control switch, packet are arranged by conventional technical means
Volume adjustment, the big minor adjustment of echo, echo time is included to adjust, thus, more than toneable formula wireless microphone implementation at least
Three kinds of regulatory functions make toneable formula wireless microphone itself have regulatory function, simultaneously as the wireless Mike of toneable formula
There is inside wind sound pick-up, switch to digital signal after through sound pick-up acquisitor acoustic simulation signal, meanwhile, by digital signal into
Row modulation；
Further, the sound pick-up implemented connects with the audio treatment unit that toneable formula wireless microphone configures, excellent
Choosing is using the FR6391 processing unit with processing advantage, by by 4558 integrated packages (be used for microphone amplifier), PT2399
Integrated package (echo IC) and PT2259 integrated package (tuning amount), which are integrated on an IC, to be packaged, using the processing list
Member not only saves PCB, can also reduce the debugging between three IC, and avoid unnecessary noise, moreover, can be together with
By microphone control instruction signal, such as echo size, echo delay time and volume increase and decrease control signal, and make to want
The audio digital signals and control instruction signal of transmission are loaded into 5.8GHz frequency range together and are emitted to power amplification sound box ontology, specifically
It is as shown in Figure 3 to receive and dispatch process；
After carrying out above-mentioned steps, the power amplification sound box ontology in system receives the high-frequency digital signal from microphone
And after control instruction signal, corresponding signal is handled with its ADAU1701 signal processing chip configured, institute
The each pin setting of the ADAU1701 signal processing chip of use can refer to shown in Fig. 4；
Finally, receiving again using the subwoofer speaker (active audio amplifier) in system from power amplification sound box ontology 5.8GHz frequency
The wireless high-frequency signal and control instruction signal of section, power amplification to subwoofer speaker；
Correspondingly, while carrying out above-mentioned steps, the also settable support external sound source (bluetooth/AUX/ optical fiber) of system is defeated
After the corresponding configuration entered waits for external sound source input, reverberation is done with the audio of toneable formula wireless microphone, then carries out power
It is amplified to speaker body, while reverberation, if the audio signal of external sound source is analog signal, number is switched to by analog signal
It signal and is loaded into 5.8G Hz wireless frequency and emits to subwoofer.
The implementation for the 5.8GHz frequency band audio system implemented above is further analyzed:
The power amplification sound box ontology of system configuration, configuration include ADAU1701 signal processing chip and MCU single-chip microcontroller control
Unit processed can be used conventional technical means as shown in Figure 5 and carry out corresponding circuit connection；
In addition, the subwoofer speaker of system configuration, internal to be configured with TPA3116 power amplifier unit.
Embodiment two
As shown in Figs. 1-5, toneable wireless microphone described in the embodiment of the present invention two is implemented in embodiment one
Further supplement on the basis of technological means belongs to the same design with technical solution used by embodiment one, and solves
Content is embodied in identical technical problem are as follows:
The toneable wireless microphone implemented further includes a gauss low frequency filter, that is, is believed to the number after conversion
Before number being modulated, the spectrum width of signal is limited by the gauss low frequency filter implemented.
Other corresponding technical characteristics that the present embodiment two is implemented can refer to the relevant art hand that embodiment one is implemented
Section or on the basis of be correspondingly improved, details are not described herein again.
In the description of this specification, if there is the descriptions such as term " embodiment one ", " the present embodiment ", " specific implementation " meaning
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the present invention or invention
In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment
Or example；Moreover, described particular features, structures, materials, or characteristics can be in any one or more embodiment or examples
In combine in a proper manner.
In the description of this specification, term " connection ", " installation ", " fixation ", " setting ", " having " etc. do broad sense reason
Solution, for example, " connection " may be a fixed connection or pass through intermediate module on the basis of not influencing component relationship and technical effect
Indirectly carry out, be also possible to integrally connected or part connect, such as herewith example situation for those of ordinary skills,
The concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
The above-mentioned description to embodiment be for the ease of those skilled in the art it will be appreciated that and application, it is ripe
The personnel for knowing art technology obviously can make various modifications to these examples easily, and General Principle application described herein
Without having to go through creative labor into other embodiments.Therefore, this case is not limited to above embodiments, for following several feelings
The modification of shape, all should be in the protection scope of this case: 1. based on technical solution of the present invention and in conjunction with existing common knowledge
The new technical solution implemented, technical effect caused by the new technical solution not departing from the technology of the present invention effect it
It outside,, can be by speech simulation signal by the configuration of the system for example, using a kind of audio system with wireless microphone
Digital signal is converted to, and is sent to power amplifier sound equipment part together with control instruction signal, the technology which generates
Effect is identical as the present invention；2. generated using well-known technique to the equivalence replacement of the Partial Feature of technical solution of the present invention
Technical effect is identical as the technology of the present invention effect；3. being expanded based on technical solution of the present invention, the technical side after expansion
Except the substantive content of case is without departing from technical solution of the present invention；4. utilizing text contents of the present invention or Figure of description institute
Gained technological means is applied the scheme in other correlative technology fields by the equivalent transformation of work.
Claims (10)
1. a kind of implementation method of 5.8GHz frequency band audio system, which comprises the following steps:
(1), wireless microphone of the configuration one with digital control switch uses 5.8GHz frequency range to emit high-frequency signal to step；
(2), the wireless microphone is arranged at least three kinds adjusting control modes to step, including volume adjustment, the big minor adjustment of echo,
Echo time is adjusted, after any instruction triggers for adjusting control mode, power amplifier sound of the wireless microphone to system configuration
Case ontology issues instruction digital signal corresponding with the regulating control command；
(3), the speech simulation signal that the wireless microphone collects its own is converted to audio digital signals to step, and with
Described instruction digital signal is sent to the power amplification sound box ontology together, and the power amplification sound box ontology configures at ADAU1701 signal
Reason chip is simultaneously handled the 5.8GHz frequency range high-frequency signal received；
(4), the power amplification sound box ontology sends treated 5.8GHz frequency range high frequency letter to the subwoofer speaker of system configuration to step
Number, the subwoofer speaker carries out power amplification.
2. the implementation method of 5.8GHz frequency band audio system according to claim 1, it is characterised in that: the wireless Mike
Wind passes through sound pick-up acquisitor's acoustic simulation signal.
3. the implementation method of 5.8GHz frequency band audio system according to claim 2, it is characterised in that: the wireless Mike
Before wind will send signal to the power amplification sound box ontology, digital signal first passes through digital modulation.
4. the implementation method of 5.8GHz frequency band audio system according to claim 1, it is characterised in that: the wireless Mike
FR6391 processing unit is used inside wind.
5. the implementation method of 5.8GHz frequency band audio system according to claim 4, it is characterised in that: at the FR6391
4558 integrated packages, PT2399 integrated package and PT2259 integrated package are integrated on an IC by reason unit to be packaged.
6. the implementation method of 5.8GHz frequency band audio system according to claim 1-5, it is characterised in that: described
Power amplification sound box ontology supports external sound source input, and does reverberation with the audio from the wireless microphone, then carries out function
Rate amplification.
7. the implementation method of 5.8GHz frequency band audio system according to claim 1, it is characterised in that: the subwoofer sound
TPA3116 power amplifier unit is configured with inside case.
8. the implementation method of 5.8GHz frequency band audio system according to claim 1, it is characterised in that: the external sound source
Input includes that bluetooth inputs.
9. a kind of toneable wireless microphone for 5.8GHz frequency band audio system characterized by comprising
First digital control switch sends corresponding control instruction for carrying out volume adjustment control, and to external power amplifier unit
Digital signal；
Second digital control switch for carrying out the big minor adjustment control of echo, and sends corresponding control to external power amplifier unit
Instruct digital signal；
Third digital control switch adjusts control for carrying out echo time, and sends corresponding control to external power amplifier unit
Instruct digital signal；
Signal conversion module for making the speech simulation signal collected be converted to audio digital signals, and passes through 5.8GHz frequency
Section sends the audio digital signals and corresponding control instruction digital signal to the external power amplifier unit together.
10. the toneable wireless microphone according to claim 9 for 5.8GHz frequency band audio system, feature exist
In: it further include a gauss low frequency filter, for limiting the spectrum width of the audio digital signals after converting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811046570.9A CN109246549A (en) | 2018-09-08 | 2018-09-08 | A kind of 5.8GHz frequency band audio network system realization and toneable wireless microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811046570.9A CN109246549A (en) | 2018-09-08 | 2018-09-08 | A kind of 5.8GHz frequency band audio network system realization and toneable wireless microphone |
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| CN109246549A true CN109246549A (en) | 2019-01-18 |
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ID=65067577
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| CN201811046570.9A Pending CN109246549A (en) | 2018-09-08 | 2018-09-08 | A kind of 5.8GHz frequency band audio network system realization and toneable wireless microphone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110691314A (en) * | 2019-10-22 | 2020-01-14 | 苏州思必驰信息科技有限公司 | Linear microphone array performance test method and clamp |
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