CN104460630A - Forward error correction type stage sound effect wireless deployment system - Google Patents
Forward error correction type stage sound effect wireless deployment system Download PDFInfo
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Abstract
Provided is a forward error correction type stage sound effect wireless deployment system. A plurality of loudspeaker units in a stage sound effect system are uniformly deployed, the optimal system sound effect can be achieved through the overall scheme design, manual on-site one-by-one debugging is not needed, efficiency is improved, meanwhile, wiring is carried out in a wireless mode, the system is simple, fast and high in expansibility, accuracy of a control instruction is guaranteed through coding and decoding error correction, and the wide application prospect is achieved.
Description
Technical field
The present invention relates to Stage Equipment Control field, particularly relate to the wireless mixing system of a kind of forward error correction formula stage audio.
Background technology
Current stage sound effect system generally can comprise multiple loudspeaker unit, in order to realize predetermined sound effect, as follows to the conventional adjustment System of the stage sound effect system that multiple loudspeaker unit forms: (1) first adjusts input processing parameter and the output processing parameter of the audio signal processing unit of single loudspeaker; (2) effect of stage sound effect system is tested, adjust with the audio signal processing unit parameter of further refinement test data to associated loudspeaker by rule of thumb; (3) again the whole structure of stage sound effect system is tested, according to test result, again the audio signal processing unit parameter of loudspeaker unit is adjusted.That is, for realizing preferably system acoustic effect, needing constantly according to overall acoustic efficiency, repeatedly the parameter of the audio signal processing unit of each loudspeaker being adjusted.
There is following problem in the mixing system of this stage sound effect system:
(1) system deployment operations is loaded down with trivial details, complicated, and workload is large.Because the factor of influential system acoustic efficiency is a lot, adjust which loudspeaker, and which parameter of adjustment loudspeaker, there is no clear stipulaties, can only engineering staff can only loudspeaker or region-by-region (loudspeaker in region is also adjust one by one) adjust one by one, again each loudspeaker is adjusted according to test result again after adjustment, namely need the acoustic efficiency of constantly duplicate measurements system and adjust each loudspeaker, just can reach preferably system audio.
(2) even if system is through repeatedly adjusting allotment, but still can not ensure to obtain preferably acoustic efficiency.As mentioned above, the factor affecting acoustic efficiency is a lot, and many times, for saving time, engineering staff often rule of thumb judges which answers which parameter of which loudspeaker of described adjustment.Even if engineering staff one by one loudspeaker adjusts, but because stage sound effect system is a systematic engineering of business, can influence each other between each loudspeaker, and engineering staff is when adjusting each loudspeaker, be difficult to prediction and judge the loudspeaker after adjusting, what impact (or what impact other loudspeakers can produce to this loudspeaker) can be produced on other loudspeakers, therefore can only estimate by rule of thumb.Therefore, this mixing system, much less ordinary person, even if for the personnel through professional training, also cannot ensure and can obtain gratifying system audio.
Therefore simplify stage sound effect system loudspeaker deployment operations, improve debugging efficiency, and safeguards system debugging effect is a technical matters urgently to be resolved hurrily.
In addition, existing Stage System adopts wired mode to connect up mostly, and this causes difficult wiring under many occasions, is difficult to expansion, cannot completes high-quality performance.
Secondly, due to the on-the-spot serious interference of stage performance, how each loudspeaker unit ensures that the instruction received from main control unit is also accurately the problem needing to consider.
Dcs is by multiple control loop in multiple stage computing machine respectively production control process, can concentrate again simultaneously and obtain data, centralized management and central controlled automatic control system.The target of described system is the controlling functions to scene, realizes Long-distance Control, and it is one, and what be made up of process control level and process monitoring level take communication network as the multi-level computer system of tie.Along with the development of distributed control technology, effective solution is provided for the system be made up of multiple subsystem (unit).
Summary of the invention
The object of the invention is to be achieved through the following technical solutions.
According to the embodiment of the present invention, propose the wireless mixing system of a kind of forward error correction formula stage audio, described system comprises stage audio central control unit, coded modulation unit, WIFI Transmit-Receive Unit, error correction unit and multiple loudspeaker unit, and each loudspeaker unit comprises audio data input unit, audio signal processing unit, distributed control unit, distributed WIFI control interface, decoding demodulating unit, feedback unit, power amplification unit and loudspeaker; Described audio data input unit connects audio signal processing unit, power amplification unit and loudspeaker successively, described audio signal processing unit also connects distributed control unit, described distributed control unit connects distributed WIFI control interface by decoding demodulating unit, and feedback unit connects distributed WIFI control interface by decoding demodulating unit.
According to the embodiment of the present invention, described stage audio central control unit carries out design and the adjustment of audio effect processing parameter;
Described coded modulation unit is used for described audio processing parameters to carry out encoding and modulating, and is then sent to the distributed WIFI control interface of multiple loudspeaker unit by WIFI Transmit-Receive Unit;
Described distributed WIFI control interface is used for receiving the control signal of stage audio central control unit transmission from WIFI Transmit-Receive Unit and transferring to described decoding demodulating unit;
The control signal that described decoding demodulating unit is used for described distributed WIFI control interface receives is decoded and demodulation, then the signal after decoding demodulation is sent to distributed control unit and feedback unit respectively;
Described distributed control unit is used for adjusting according to external control signal each Audio Signal Processing parameter to described group of input processing parameter;
Described feedback unit is used for the signal after by decoding demodulation and returns WIFI Transmit-Receive Unit by distributed WIFI control interface;
The signal that described error correction unit is used for returning from WIFI Transmit-Receive Unit carries out accuracy detection, when the control signal detected with send before is variant, sends error signal to stage audio central control unit;
Described audio data input unit for receiving the sound signal of loudspeaker outside input, and transfers to described audio signal processing unit;
Described audio signal processing unit is provided with data memory module and input processing module, described data memory module is for storing the Audio Signal Processing parameter received from distributed control unit, and described Audio Signal Processing parameter comprises loudspeaker level Audio Signal Processing parameter and group level Audio Signal Processing parameter; Described loudspeaker level Audio Signal Processing parameter is the Audio Signal Processing parameter arranged for described loudspeaker unit, and described group level Audio Signal Processing parameter is each loudspeaker node for group belonging to described loudspeaker unit and the Audio Signal Processing parameter arranged; Described input processing module comprises the sound effect processor of multiple series connection, each sound effect processor respectively with described loudspeaker level Audio Signal Processing parameter and group level Audio Signal Processing parameter one_to_one corresponding, each sound effect processor be used for according to the Audio Signal Processing parameter of correspondence, corresponding signal processing operations is carried out to sound signal;
Described power amplification unit for receiving the sound signal through described input processing module process, and transfers to described loudspeaker after described sound signal being carried out amplification process.
According to the embodiment of the present invention, the wireless mixing system of described forward error correction formula stage audio carries out design and the adjustment of audio effect processing parameter, specifically comprises the following steps:
A10: stage sound effect system simulation mapping graph set up by described stage audio central control unit, described stage sound effect system simulation mapping graph comprises multiple loudspeaker simulation mapping graph, each loudspeaker simulation mapping graph is corresponding with the loudspeaker unit of in stage sound effect system, each loudspeaker simulation mapping graph comprises one group of analog input process parameter, described group of analog input process parameter comprises multiple simulated audio signal process data, each simulated audio signal handle packet draws together a loudspeaker level Audio Signal Processing parameter, a group level Audio Signal Processing parameter, each simulated audio signal process data of loudspeaker simulation mapping graph respectively with each real audio signal process data one_to_one corresponding of loudspeaker unit,
A20: select to regenerate or revise group's simulation mapping graph, perform A30; Select to revise Audio Signal Processing parameter, perform A40;
A30: if regenerate group's simulation mapping graph, perform A31; Revise group's simulation map nodes, perform A32;
A31: set up group's simulation mapping graph, and one or more loudspeaker simulation mapping graph is simulated mapping graph with described group carry out corresponding, described group simulation mapping graph comprises multiple group level Audio Signal Processing parameter, and described multiple group level Audio Signal Processing parameter simulates each group level Audio Signal Processing parameter one_to_one corresponding that mapping graph analog input process parameter comprises respectively with loudspeaker and type is identical; Each group level Audio Signal Processing optimum configurations corresponding to each loudspeaker simulation mapping graph of same group simulation mapping graph becomes to simulate the identical numerical value of group level Audio Signal Processing parameter corresponding in mapping graph with described group; Then A20 or A50 is performed;
A32: selected group simulation mapping graph, if newly-increased loudspeaker node, then corresponds to described group simulation mapping graph by described loudspeaker simulation mapping graph; If delete loudspeaker node, then cancel described loudspeaker simulation mapping graph and simulate the corresponding of mapping graph with described group; Then A20 or A50 is performed;
A40: revise loudspeaker level Audio Signal Processing parameter if select, then perform A41; Revise group level Audio Signal Processing parameter if select, then perform A42;
A41: revise the loudspeaker level Audio Signal Processing parameter select, and revised data are saved to loudspeaker belonging to described loudspeaker level Audio Signal Processing parameter and simulate in mapping graph corresponding loudspeaker level Audio Signal Processing parameter; Perform A43;
A42: determine group level Audio Signal Processing parameter selected by revising, now, if described group level Audio Signal Processing parameter is the Audio Signal Processing parameter of group's simulation mapping graph, performs A421; If described group level Audio Signal Processing parameter is the Audio Signal Processing parameter of loudspeaker simulation mapping graph, perform A422;
A421: revised data are saved in the group level Audio Signal Processing parameter that belonging to described group level Audio Signal Processing parameter, group's simulation mapping graph is corresponding, and mapping graph corresponding group level Audio Signal Processing parameter simulated by synchronous described group simulation each loudspeaker corresponding to mapping graph of revising; Perform A43;
A422: if described loudspeaker simulation mapping graph has corresponded to group's simulation mapping graph, then revised data are saved in described loudspeaker simulation mapping graph corresponding group level Audio Signal Processing parameter, and group level Audio Signal Processing parameter corresponding to mapping graph simulated by the described group's simulation mapping graph of synchronous correction and each corresponding loudspeaker thereof; If described loudspeaker simulation mapping graph is not simulated mapping graph with group and is carried out corresponding, if now described group level Audio Signal Processing parameter can be corrected, then revised data are saved in described loudspeaker simulation mapping graph corresponding group level Audio Signal Processing parameter; Perform A43;
A43: the loudspeaker simulation mapping graph revised occurs the simulated audio signal process data for analog input process parameter:
If the corresponding real audio signal handle packet in loudspeaker unit corresponding to the described simulated audio signal process data of described loudspeaker simulation mapping graph is containing loudspeaker level Audio Signal Processing parameter, group level Audio Signal Processing parameter, in the Audio Signal Processing parameter synchronization of change in the so described simulated audio signal process data diaphone audio signalprocessing parameter to corresponding real audio signal process data;
If the corresponding real audio signal process data in loudspeaker unit corresponding to the described simulated audio signal process data of described loudspeaker simulation mapping graph only comprise loudspeaker level Audio Signal Processing parameter, so first each layer Audio Signal Processing parameter superposition calculation of described simulated audio signal process data is obtained new Audio Signal Processing parameter, and by described new Audio Signal Processing parameter synchronization in the loudspeaker level Audio Signal Processing parameter of corresponding real audio signal process data; Perform A20 or A50;
A50: the described loudspeaker level Audio Signal Processing parameter after adjustment and group level Audio Signal Processing parameter are sent to described distributed WIFI control interface by coded modulation unit, WIFI Transmit-Receive Unit successively as control signal.
By the wireless mixing system of forward error correction formula stage audio of the present invention, achieve loudspeaker unit unified allocation of resources multiple in stage sound effect system, by the conceptual design of entirety, best system audio can be reached, and debug one by one without the need to manual site, improve efficiency, adopt wireless wiring, simple and fast simultaneously, extendability is high, and by encoding and decoding error correction, ensure that the accurate of steering order, be with a wide range of applications.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Figure 1 show the wireless mixing system structural representation of forward error correction formula stage audio according to embodiment of the present invention;
Figure 2 illustrate and carry out the design of audio effect processing parameter and the process flow diagram of adjustment according to the wireless mixing system of forward error correction formula stage audio of embodiment of the present invention.
Embodiment
Below with reference to accompanying drawings illustrative embodiments of the present disclosure is described in more detail.Although show illustrative embodiments of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the embodiment of setting forth here.On the contrary, provide these embodiments to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
According to the embodiment of the present invention, propose the wireless mixing system of a kind of forward error correction formula stage audio, as shown in Figure 1, described system comprises stage audio central control unit, coded modulation unit, WIFI Transmit-Receive Unit, error correction unit and multiple loudspeaker unit, and each loudspeaker unit comprises audio data input unit, audio signal processing unit, distributed control unit, distributed WIFI control interface, decoding demodulating unit, feedback unit, power amplification unit and loudspeaker; Described audio data input unit connects audio signal processing unit, power amplification unit and loudspeaker successively, described audio signal processing unit also connects distributed control unit, described distributed control unit connects distributed WIFI control interface by decoding demodulating unit, and feedback unit connects distributed WIFI control interface by decoding demodulating unit; Wherein,
Described stage audio central control unit carries out design and the adjustment of audio effect processing parameter;
Described coded modulation unit is used for described audio processing parameters to carry out encoding and modulating, and is then sent to the distributed WIFI control interface of multiple loudspeaker unit by WIFI Transmit-Receive Unit;
Described distributed WIFI control interface is used for receiving the control signal of stage audio central control unit transmission from WIFI Transmit-Receive Unit and transferring to described decoding demodulating unit;
The control signal that described decoding demodulating unit is used for described distributed WIFI control interface receives is decoded and demodulation, then the signal after decoding demodulation is sent to distributed control unit and feedback unit respectively;
Described distributed control unit is used for adjusting according to external control signal each Audio Signal Processing parameter to described group of input processing parameter;
Described feedback unit is used for the signal after by decoding demodulation and returns WIFI Transmit-Receive Unit by distributed WIFI control interface;
The signal that described error correction unit is used for returning from WIFI Transmit-Receive Unit carries out accuracy detection, when the control signal detected with send before is variant, sends error signal to stage audio central control unit;
Described audio data input unit for receiving the sound signal of loudspeaker outside input, and transfers to described audio signal processing unit;
Described audio signal processing unit is provided with data memory module and input processing module, described data memory module is for storing the Audio Signal Processing parameter received from distributed control unit, and described Audio Signal Processing parameter comprises loudspeaker level Audio Signal Processing parameter and group level Audio Signal Processing parameter; Described loudspeaker level Audio Signal Processing parameter is the Audio Signal Processing parameter arranged for described loudspeaker unit, and described group level Audio Signal Processing parameter is each loudspeaker node for group belonging to described loudspeaker unit and the Audio Signal Processing parameter arranged; Described input processing module comprises the sound effect processor of multiple series connection, each sound effect processor respectively with described loudspeaker level Audio Signal Processing parameter and group level Audio Signal Processing parameter one_to_one corresponding, each sound effect processor be used for according to the Audio Signal Processing parameter of correspondence, corresponding signal processing operations is carried out to sound signal;
Described power amplification unit for receiving the sound signal through described input processing module process, and transfers to described loudspeaker after described sound signal being carried out amplification process.
The wireless mixing system of described forward error correction formula stage audio carries out design and the adjustment of audio effect processing parameter, specifically comprises the following steps:
A10: stage sound effect system simulation mapping graph set up by described stage audio central control unit, described stage sound effect system simulation mapping graph comprises multiple loudspeaker simulation mapping graph, each loudspeaker simulation mapping graph is corresponding with the loudspeaker unit of in stage sound effect system, each loudspeaker simulation mapping graph comprises one group of analog input process parameter, described group of analog input process parameter comprises multiple simulated audio signal process data, each simulated audio signal handle packet draws together a loudspeaker level Audio Signal Processing parameter, a group level Audio Signal Processing parameter, each simulated audio signal process data of loudspeaker simulation mapping graph respectively with each real audio signal process data one_to_one corresponding of loudspeaker unit,
A20: select to regenerate or revise group's simulation mapping graph, perform A30; Select to revise Audio Signal Processing parameter, perform A40;
A30: if regenerate group's simulation mapping graph, perform A31; Revise group's simulation map nodes, perform A32;
A31: set up group's simulation mapping graph, and one or more loudspeaker simulation mapping graph is simulated mapping graph with described group carry out corresponding, described group simulation mapping graph comprises multiple group level Audio Signal Processing parameter, and described multiple group level Audio Signal Processing parameter simulates each group level Audio Signal Processing parameter one_to_one corresponding that mapping graph analog input process parameter comprises respectively with loudspeaker and type is identical; Each group level Audio Signal Processing optimum configurations corresponding to each loudspeaker simulation mapping graph of same group simulation mapping graph becomes to simulate the identical numerical value of group level Audio Signal Processing parameter corresponding in mapping graph with described group; Then A20 or A50 is performed;
A32: selected group simulation mapping graph, if newly-increased loudspeaker node, then corresponds to described group simulation mapping graph by described loudspeaker simulation mapping graph; If delete loudspeaker node, then cancel described loudspeaker simulation mapping graph and simulate the corresponding of mapping graph with described group; Then A20 or A50 is performed;
A40: revise loudspeaker level Audio Signal Processing parameter if select, then perform A41; Revise group level Audio Signal Processing parameter if select, then perform A42;
A41: revise the loudspeaker level Audio Signal Processing parameter select, and revised data are saved to loudspeaker belonging to described loudspeaker level Audio Signal Processing parameter and simulate in mapping graph corresponding loudspeaker level Audio Signal Processing parameter; Perform A43;
A42: determine group level Audio Signal Processing parameter selected by revising, now, if described group level Audio Signal Processing parameter is the Audio Signal Processing parameter of group's simulation mapping graph, performs A421; If described group level Audio Signal Processing parameter is the Audio Signal Processing parameter of loudspeaker simulation mapping graph, perform A422;
A421: revised data are saved in the group level Audio Signal Processing parameter that belonging to described group level Audio Signal Processing parameter, group's simulation mapping graph is corresponding, and mapping graph corresponding group level Audio Signal Processing parameter simulated by synchronous described group simulation each loudspeaker corresponding to mapping graph of revising; Perform A43;
A422: if described loudspeaker simulation mapping graph has corresponded to group's simulation mapping graph, then revised data are saved in described loudspeaker simulation mapping graph corresponding group level Audio Signal Processing parameter, and group level Audio Signal Processing parameter corresponding to mapping graph simulated by the described group's simulation mapping graph of synchronous correction and each corresponding loudspeaker thereof; If described loudspeaker simulation mapping graph is not simulated mapping graph with group and is carried out corresponding, if now described group level Audio Signal Processing parameter can be corrected, then revised data are saved in described loudspeaker simulation mapping graph corresponding group level Audio Signal Processing parameter; Perform A43;
A43: the loudspeaker simulation mapping graph revised occurs the simulated audio signal process data for analog input process parameter:
If the corresponding real audio signal handle packet in loudspeaker unit corresponding to the described simulated audio signal process data of described loudspeaker simulation mapping graph is containing loudspeaker level Audio Signal Processing parameter, group level Audio Signal Processing parameter, in the Audio Signal Processing parameter synchronization of change in the so described simulated audio signal process data diaphone audio signalprocessing parameter to corresponding real audio signal process data;
If the corresponding real audio signal process data in loudspeaker unit corresponding to the described simulated audio signal process data of described loudspeaker simulation mapping graph only comprise loudspeaker level Audio Signal Processing parameter, so first each layer Audio Signal Processing parameter superposition calculation of described simulated audio signal process data is obtained new Audio Signal Processing parameter, and by described new Audio Signal Processing parameter synchronization in the loudspeaker level Audio Signal Processing parameter of corresponding real audio signal process data; Perform A20 or A50;
A50: the described loudspeaker level Audio Signal Processing parameter after adjustment and group level Audio Signal Processing parameter are sent to described distributed WIFI control interface by coded modulation unit, WIFI Transmit-Receive Unit successively as control signal.
According to the preferred embodiment of the present invention, the described input processing parameter of described loudspeaker unit comprises following one or more real audio signal process data: input silence data, input gain data, input delay data, input subtractive polarity data, input loss offset data, input amplitude-limiting data, equalization data;
The sound effect processor that each Audio Signal Processing parameter of the real audio signal process data that input processing module comprises with described input processing parameter comprises of described audio signal processing unit is corresponding:
The each input comprised for described input silence data is mourned in silence parameter, and the sound effect processor corresponding with it is to mourn in silence sound effect processor to the mourn in silence input of switch process of sound signal for parameter of mourning in silence according to described input;
For each input gain parameter that described input gain data comprise, the sound effect processor corresponding with it is the input gain sound effect processor for carrying out input gain process to sound signal according to described input gain parameter;
For each input delay parameter that described input delay data comprise, the sound effect processor corresponding with it is the input delay sound effect processor for carrying out input delay process to sound signal according to described input delay parameter;
For each input subtractive polarity parameter that described input subtractive polarity data comprise, the sound effect processor corresponding with it is the input subtractive polarity sound effect processor for carrying out subtractive polarity operational processes to sound signal according to described input subtractive polarity parameter;
For each input loss compensating parameter that described input loss offset data comprises, the sound effect processor corresponding with it is for compensating sound effect processor according to described input loss compensating parameter to the input loss that sound signal carries out loss compensation process;
For each input amplitude-limiting parameter that described input amplitude-limiting data comprise, the sound effect processor corresponding with it is the input amplitude-limiting sound effect processor for carrying out amplitude restriction process to sound signal according to described input amplitude-limiting parameter;
For each balance parameters, the sound effect processor corresponding with it is the balanced sound effect processor for carrying out amplitude restriction process to sound signal according to described balance parameters.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (3)
1. the wireless mixing system of forward error correction formula stage audio, described system comprises stage audio central control unit, coded modulation unit, WIFI Transmit-Receive Unit, error correction unit and multiple loudspeaker unit, and each loudspeaker unit comprises audio data input unit, audio signal processing unit, distributed control unit, distributed WIFI control interface, decoding demodulating unit, feedback unit, power amplification unit and loudspeaker; Described audio data input unit connects audio signal processing unit, power amplification unit and loudspeaker successively, described audio signal processing unit also connects distributed control unit, described distributed control unit connects distributed WIFI control interface by decoding demodulating unit, and feedback unit connects distributed WIFI control interface by decoding demodulating unit.
2. a system as claimed in claim 1, described stage audio central control unit carries out design and the adjustment of audio effect processing parameter;
Described coded modulation unit is used for described audio processing parameters to carry out encoding and modulating, and is then sent to the distributed WIFI control interface of multiple loudspeaker unit by WIFI Transmit-Receive Unit;
Described distributed WIFI control interface is used for receiving the control signal of stage audio central control unit transmission from WIFI Transmit-Receive Unit and transferring to described decoding demodulating unit;
The control signal that described decoding demodulating unit is used for described distributed WIFI control interface receives is decoded and demodulation, then the signal after decoding demodulation is sent to distributed control unit and feedback unit respectively;
Described distributed control unit is used for adjusting according to external control signal each Audio Signal Processing parameter to described group of input processing parameter;
Described feedback unit is used for the signal after by decoding demodulation and returns WIFI Transmit-Receive Unit by distributed WIFI control interface;
The signal that described error correction unit is used for returning from WIFI Transmit-Receive Unit carries out accuracy detection, when the control signal detected with send before is variant, sends error signal to stage audio central control unit;
Described audio data input unit for receiving the sound signal of loudspeaker outside input, and transfers to described audio signal processing unit;
Described audio signal processing unit is provided with data memory module and input processing module, described data memory module is for storing the Audio Signal Processing parameter received from distributed control unit, and described Audio Signal Processing parameter comprises loudspeaker level Audio Signal Processing parameter and group level Audio Signal Processing parameter; Described loudspeaker level Audio Signal Processing parameter is the Audio Signal Processing parameter arranged for described loudspeaker unit, and described group level Audio Signal Processing parameter is each loudspeaker node for group belonging to described loudspeaker unit and the Audio Signal Processing parameter arranged; Described input processing module comprises the sound effect processor of multiple series connection, each sound effect processor respectively with described loudspeaker level Audio Signal Processing parameter and group level Audio Signal Processing parameter one_to_one corresponding, each sound effect processor be used for according to the Audio Signal Processing parameter of correspondence, corresponding signal processing operations is carried out to sound signal;
Described power amplification unit for receiving the sound signal through described input processing module process, and transfers to described loudspeaker after described sound signal being carried out amplification process.
3. a system as claimed in claim 2, the wireless mixing system of described forward error correction formula stage audio carries out design and the adjustment of audio effect processing parameter, specifically comprises:
A10: stage sound effect system simulation mapping graph set up by described stage audio central control unit, described stage sound effect system simulation mapping graph comprises multiple loudspeaker simulation mapping graph, each loudspeaker simulation mapping graph is corresponding with the loudspeaker unit of in stage sound effect system, each loudspeaker simulation mapping graph comprises one group of analog input process parameter, described group of analog input process parameter comprises multiple simulated audio signal process data, each simulated audio signal handle packet draws together a loudspeaker level Audio Signal Processing parameter, a group level Audio Signal Processing parameter, each simulated audio signal process data of loudspeaker simulation mapping graph respectively with each real audio signal process data one_to_one corresponding of loudspeaker unit,
A20: select to regenerate or revise group's simulation mapping graph, perform A30; Select to revise Audio Signal Processing parameter, perform A40;
A30: if regenerate group's simulation mapping graph, perform A31; Revise group's simulation map nodes, perform A32;
A31: set up group's simulation mapping graph, and one or more loudspeaker simulation mapping graph is simulated mapping graph with described group carry out corresponding, described group simulation mapping graph comprises multiple group level Audio Signal Processing parameter, and described multiple group level Audio Signal Processing parameter simulates each group level Audio Signal Processing parameter one_to_one corresponding that mapping graph analog input process parameter comprises respectively with loudspeaker and type is identical; Each group level Audio Signal Processing optimum configurations corresponding to each loudspeaker simulation mapping graph of same group simulation mapping graph becomes to simulate the identical numerical value of group level Audio Signal Processing parameter corresponding in mapping graph with described group; Then A20 or A50 is performed;
A32: selected group simulation mapping graph, if newly-increased loudspeaker node, then corresponds to described group simulation mapping graph by described loudspeaker simulation mapping graph; If delete loudspeaker node, then cancel described loudspeaker simulation mapping graph and simulate the corresponding of mapping graph with described group; Then A20 or A50 is performed;
A40: revise loudspeaker level Audio Signal Processing parameter if select, then perform A41; Revise group level Audio Signal Processing parameter if select, then perform A42;
A41: revise the loudspeaker level Audio Signal Processing parameter select, and revised data are saved to loudspeaker belonging to described loudspeaker level Audio Signal Processing parameter and simulate in mapping graph corresponding loudspeaker level Audio Signal Processing parameter; Perform A43;
A42: determine group level Audio Signal Processing parameter selected by revising, now, if described group level Audio Signal Processing parameter is the Audio Signal Processing parameter of group's simulation mapping graph, performs A421; If described group level Audio Signal Processing parameter is the Audio Signal Processing parameter of loudspeaker simulation mapping graph, perform A422;
A421: revised data are saved in the group level Audio Signal Processing parameter that belonging to described group level Audio Signal Processing parameter, group's simulation mapping graph is corresponding, and mapping graph corresponding group level Audio Signal Processing parameter simulated by synchronous described group simulation each loudspeaker corresponding to mapping graph of revising; Perform A43;
A422: if described loudspeaker simulation mapping graph has corresponded to group's simulation mapping graph, then revised data are saved in described loudspeaker simulation mapping graph corresponding group level Audio Signal Processing parameter, and group level Audio Signal Processing parameter corresponding to mapping graph simulated by the described group's simulation mapping graph of synchronous correction and each corresponding loudspeaker thereof; If described loudspeaker simulation mapping graph is not simulated mapping graph with group and is carried out corresponding, if now described group level Audio Signal Processing parameter can be corrected, then revised data are saved in described loudspeaker simulation mapping graph corresponding group level Audio Signal Processing parameter; Perform A43;
A43: the loudspeaker simulation mapping graph revised occurs the simulated audio signal process data for analog input process parameter:
If the corresponding real audio signal handle packet in loudspeaker unit corresponding to the described simulated audio signal process data of described loudspeaker simulation mapping graph is containing loudspeaker level Audio Signal Processing parameter, group level Audio Signal Processing parameter, in the Audio Signal Processing parameter synchronization of change in the so described simulated audio signal process data diaphone audio signalprocessing parameter to corresponding real audio signal process data;
If the corresponding real audio signal process data in loudspeaker unit corresponding to the described simulated audio signal process data of described loudspeaker simulation mapping graph only comprise loudspeaker level Audio Signal Processing parameter, so first each layer Audio Signal Processing parameter superposition calculation of described simulated audio signal process data is obtained new Audio Signal Processing parameter, and by described new Audio Signal Processing parameter synchronization in the loudspeaker level Audio Signal Processing parameter of corresponding real audio signal process data; Perform A20 or A50;
A50: the described loudspeaker level Audio Signal Processing parameter after adjustment and group level Audio Signal Processing parameter are sent to described distributed WIFI control interface by coded modulation unit, WIFI Transmit-Receive Unit successively as control signal.
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