CN112911461B - High-fidelity control method and system for sound box system for stage performance - Google Patents

High-fidelity control method and system for sound box system for stage performance Download PDF

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CN112911461B
CN112911461B CN202110123315.5A CN202110123315A CN112911461B CN 112911461 B CN112911461 B CN 112911461B CN 202110123315 A CN202110123315 A CN 202110123315A CN 112911461 B CN112911461 B CN 112911461B
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audio
sound
matrix
stage performance
fidelity
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CN112911461A (en
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马瑞林
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Guangzhou Taisheng Electronics Co ltd
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Guangzhou Taisheng Electronics Co ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/222Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for microphones
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention discloses a high-fidelity control method and a system of a sound box system for stage performance, wherein the method comprises the steps of selecting different pickup devices to collect audio signals according to different sound sources, sequentially conveying the collected audio signals to a matrix sound console, an audio matrix processor and power amplifier devices to be processed, and sending the processed audio signals to a loudspeaker to be played, so that the effect of sound amplification is realized; through selecting different pickup equipment according to different sound sources to carry out audio signal collection, can make pickup equipment more sensitive to the frequency response of sound source to reach the purpose of reducing distortion, simultaneously, handle audio signal through adopting matrix sound console and audio matrix treater, also can realize the effect of fidelity, and then realize the high fidelity of audio amplifier system.

Description

High-fidelity control method and system for sound box system for stage performance
Technical Field
The invention relates to the technical field of high-fidelity of sound box systems, in particular to a high-fidelity control method and a high-fidelity control system of a sound box system for stage performance.
Background
Along with the continuous improvement of people's physical life, people have also had bigger pursuit to mental life, so the demand that large-scale stage activities held, thereby make people to cultural entertainment is satisfied, and in large-scale stage activities, in order to let spectators feel real stage atmosphere, professional stage audio amplifier system is indispensable, current stage audio amplifier system generally includes gathering front end, the tuning table, audio processor, power amplifier equipment and speaker, gather audio signal through gathering the front end, then process through tuning table, audio processor and power amplifier equipment in proper order, play through the speaker at last, thereby realize the public address effect of professional stage audio amplifier system, but current audio amplifier system is nevertheless can play the effect of public address, but is not good to the reduction degree effect of sound source, very easily lead to the circumstances emergence of distortion, thereby influence spectator's sense of hearing, and then can't obtain best public address effect.
Disclosure of Invention
In view of the above, the invention provides a high-fidelity control method and a system for a sound box system for stage performance, which can solve the defect of poor sound source restoration effect of the existing professional stage sound box system.
The technical scheme of the invention is realized as follows:
a high-fidelity control method of a sound box system for stage performance specifically comprises the following steps:
step S1, selecting different pickup devices to collect audio signals according to different sound sources;
step S2, the acquired audio signals are transmitted to a matrix sound console for processing, and matrix audio signals are obtained;
step S3, the matrix audio signals are transmitted to an audio matrix processor for processing, and processed audio signals are obtained;
step S4, the processed audio signal is transmitted to power amplification equipment for power amplification, and the audio signal after power amplification is obtained;
and S5, sending the amplified audio signals to a loudspeaker, thereby realizing the effect of amplifying sound.
As a further alternative of the high-fidelity control method of the sound box system for stage performance, the step S1 further includes the following steps after selecting the sound pickup device and before collecting the audio signal:
acquiring position information of a sound source;
and adjusting the directivity of the sound pickup equipment according to the position information of the sound source, and directing the collection end of the sound pickup equipment to the sounding end of the sound source.
As a further alternative of the high-fidelity control method of the sound box system for stage performance, after the pickup device collects the audio signals, before the audio signals are delivered to the matrix sound console, the method further includes the following steps:
acquiring a pickup frequency section of pickup equipment;
and selecting a connecting wire according to the pick-up frequency range of the pick-up equipment, and connecting the pick-up equipment with the matrix sound console through the selected connecting wire.
As a further alternative to the loudspeaker box system high fidelity control method for stage performance, the step S2 includes the steps of:
step S21, the matrix sound console carries out fixed value attenuation on the received audio signals;
step S22, the signal-to-noise ratio of the audio signal after the fixed value attenuation is obtained, and the gain adjustment is carried out on the audio signal after the fixed value attenuation according to the signal-to-noise ratio.
As a further alternative to the loudspeaker box system high fidelity control method for stage performance, the step S3 includes the following steps:
step S31, the audio matrix processor divides the frequency of the received matrix audio signals to obtain a high audio segment, a low audio segment and a medium audio segment;
step S32, EQ compensation is carried out on the high-audio frequency band, the low-audio frequency band and the middle-audio frequency band;
in step S33, delay operation is performed on the EQ compensated high audio segment, mid audio segment and low audio segment.
As a further alternative to the speaker system high fidelity control method for stage performance, the step S32 includes the steps of:
step S321, compensating the sound definition of the high audio frequency band;
step S322, compensating the sound intensity of the middle audio frequency band;
step S323, compensating the sound fullness of the bass segment.
As a further alternative to the speaker system high fidelity control method for stage performance, the step S33 includes the steps of:
step S331, obtaining the sensitivity of the power amplifier device and the loudspeaker;
step S332, performing delay operation on the high audio segment, the middle audio segment and the low audio segment according to the sensitivity of the power amplifier and the speaker.
As a further alternative of the high-fidelity control method of the sound box system for stage performance, the power amplifier device is a digital power amplifier device.
A loudspeaker box system high-fidelity control system for stage performance, wherein the system adopts any one of the control methods.
The beneficial effects of the invention are as follows: through selecting different pickup equipment according to different sound sources to carry out audio signal collection, can make pickup equipment more sensitive to the frequency response of sound source to reach the purpose of reducing distortion, simultaneously, handle audio signal through adopting matrix sound console and audio matrix treater, also can realize the effect of fidelity, and then realize the high fidelity of audio amplifier system.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a high-fidelity control method of a sound box system according to the present invention.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a high-fidelity control method of a sound box system for stage performance specifically includes the following steps:
step S1, selecting different pickup devices to collect audio signals according to different sound sources;
step S2, the acquired audio signals are transmitted to a matrix sound console for processing, and matrix audio signals are obtained;
step S3, the matrix audio signals are transmitted to an audio matrix processor for processing, and processed audio signals are obtained;
step S4, the processed audio signal is transmitted to power amplification equipment for power amplification, and the audio signal after power amplification is obtained;
and S5, sending the amplified audio signals to a loudspeaker, thereby realizing the effect of amplifying sound.
In this embodiment, through selecting different pickup equipment according to different sound sources to carry out audio signal acquisition, can make pickup equipment more sensitive to the frequency response of sound source to reach the purpose of reducing distortion, simultaneously, through adopting matrix sound console and audio matrix treater to handle audio signal, also can realize the effect of fidelity, and then realize the high fidelity of audio amplifier system.
It should be noted that, can be provided with filter circuit in the sound pickup equipment, carry out the noise filtering to audio signal through filter circuit, can also avoid carrying out the power amplifier to the noise, thereby avoid forming the noise, realize the effect of environmental protection, can also be through setting up the filter module between sound pickup equipment and matrix sound mixing console, thereby make among the sound mixing console of the audio signal entering response of different frequency channels, improve the accuracy of sound mixing console input audio signal, in addition, different sound sources select different sound pickup equipment specifically including but not limited to, different musical instrument select different sound pickup equipment, the people sound selects the sound pickup equipment etc. different with the musical instrument.
Preferably, in the step S1, after the pickup device is selected, before the audio signal is collected, the method further includes the steps of:
acquiring position information of a sound source;
and adjusting the directivity of the sound pickup equipment according to the position information of the sound source, and directing the collection end of the sound pickup equipment to the sounding end of the sound source.
In the embodiment, the directivity of the sound pickup device is adjusted according to the position information of the sound source, and the acquisition end of the sound pickup device is pointed to the sounding end of the sound source, so that the accuracy of the acquired audio signals can be effectively ensured, the reduction degree of the sound source is further improved by improving the acquisition accuracy, and the fidelity effect of the sound box system is further ensured; note that, the distance between the sound pickup apparatus and the sound source is also noted, and the distance selected by different sound sources is also different.
Preferably, after the pickup device collects the audio signal, before the audio signal is delivered to the matrix sound console, the method further comprises the following steps:
acquiring a pickup frequency section of pickup equipment;
and selecting a connecting wire according to the pick-up frequency range of the pick-up equipment, and connecting the pick-up equipment with the matrix sound console through the selected connecting wire.
In this embodiment, because whether the audio signal can be well restored or not and whether loss can be well avoided in the transmission process is also important in addition to the collection and processing, by selecting a connection line according to the pickup frequency band of the sound pickup device and connecting the sound pickup device with the matrix sound console through the selected connection line, low loss of the audio signal in the transmission process can be well ensured, so that the reduction degree and the fidelity effect of the sound source are further improved; specifically, if the pickup frequency band of the pickup device is a high-pitched frequency band, a connection line for transmitting the high-pitched frequency band is selected, if the pickup frequency band of the pickup device is a medium-pitched frequency band, a connection line for transmitting the medium-pitched frequency band is selected, and if the pickup frequency band of the pickup device is a low-pitched frequency band, a connection line for transmitting the low-pitched frequency band is selected.
Preferably, the step S2 includes the steps of:
step S21, the matrix sound console carries out fixed value attenuation on the received audio signals;
step S22, the signal-to-noise ratio of the audio signal after the fixed value attenuation is obtained, and the gain adjustment is carried out on the audio signal after the fixed value attenuation according to the signal-to-noise ratio.
In this embodiment, by performing constant value attenuation on the received audio signal and performing gain adjustment on the audio signal after the constant value attenuation, the input sound signal can be in an optimal state with high signal-to-noise ratio and small distortion, so as to further improve the fidelity effect of the sound box system.
Preferably, the step S3 includes the steps of:
step S31, the audio matrix processor divides the frequency of the received matrix audio signals to obtain a high audio segment, a low audio segment and a medium audio segment;
step S32, EQ compensation is carried out on the high-audio frequency band, the low-audio frequency band and the middle-audio frequency band;
in step S33, delay operation is performed on the EQ compensated high audio segment, mid audio segment and low audio segment.
In this embodiment, when the audio matrix processor divides the frequency of the matrix audio signal, the selected division point is to be smooth, and through EQ compensation on the high audio segment, the low audio segment and the middle audio segment, the compensation of the sound quality can be achieved, and through delay operation on the high audio segment, the middle audio segment and the low audio segment after EQ compensation, the hearing experience of the user can be improved.
Preferably, the step S32 includes the steps of:
step S321, compensating the sound definition of the high audio frequency band;
step S322, compensating the sound intensity of the middle audio frequency band;
step S323, compensating the sound fullness of the bass segment.
In this embodiment, by compensating for three angles of sound clarity, sound strength and sound fullness, compensation of sound quality can be better achieved, thereby improving the degree of restoration for the sound source.
Preferably, the step S33 includes the steps of:
step S331, obtaining the sensitivity of the power amplifier device and the loudspeaker;
step S332, performing delay operation on the high audio segment, the middle audio segment and the low audio segment according to the sensitivity of the power amplifier and the speaker.
In this embodiment, because each power amplifier device and each speaker have their own sensitivities, the sensitivities are different, and the power amplifier efficiency and the playing efficiency are different, so that the consistency of the power amplifier of the audio signal and the consistency of the playing can be effectively ensured by performing the delay operation on the high audio frequency segment, the middle audio frequency segment and the low audio frequency segment according to the sensitivities of the power amplifier device and the speakers, thereby improving the hearing experience of the user.
Preferably, the power amplifier device is a digital power amplifier device.
In this embodiment, by adopting the digital power amplifier device, the speed of the power amplifier can be matched with the playing speed of the speaker, so as to improve the playing effect and further improve the hearing experience of the user.
A loudspeaker box system high-fidelity control system for stage performance, wherein the system adopts any one of the control methods.
In this embodiment, by using any one of the above control methods, different sound pickup devices can be selected to collect audio signals according to different sound sources, so that the sound pickup devices are more sensitive to the frequency response of the sound sources, thereby achieving the purpose of reducing distortion.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (8)

1. The high-fidelity control method of the sound box system for stage performance is characterized by comprising the following steps of:
step S1, selecting different pickup devices to collect audio signals according to different sound sources;
step S2, the acquired audio signals are transmitted to a matrix sound console for processing, and matrix audio signals are obtained;
step S3, the matrix audio signals are transmitted to an audio matrix processor for processing, and processed audio signals are obtained;
step S4, the processed audio signal is transmitted to power amplification equipment for power amplification, and the audio signal after power amplification is obtained;
step S5, the audio signal after the power amplification is sent to a loudspeaker, so that the effect of sound amplification is achieved;
after the pickup device collects the audio signals, the method further comprises the following steps of:
acquiring a pickup frequency section of pickup equipment;
and selecting a connecting wire according to the pick-up frequency range of the pick-up equipment, and connecting the pick-up equipment with the matrix sound console through the selected connecting wire.
2. The method for controlling high fidelity of sound box system for stage performance according to claim 1, wherein after selecting the sound pickup device, the step S1 further comprises the following steps before collecting the audio signal:
acquiring position information of a sound source;
and adjusting the directivity of the sound pickup equipment according to the position information of the sound source, and directing the collection end of the sound pickup equipment to the sounding end of the sound source.
3. A loudspeaker system high-fidelity control method for stage performance according to claim 2, wherein the step S2 comprises the steps of:
step S21, the matrix sound console carries out fixed value attenuation on the received audio signals;
step S22, the signal-to-noise ratio of the audio signal after the fixed value attenuation is obtained, and the gain adjustment is carried out on the audio signal after the fixed value attenuation according to the signal-to-noise ratio.
4. A loudspeaker system high-fidelity control method for stage performance according to claim 3, wherein said step S3 comprises the steps of:
step S31, the audio matrix processor divides the frequency of the received matrix audio signals to obtain a high audio segment, a low audio segment and a medium audio segment;
step S32, EQ compensation is carried out on the high-audio frequency band, the low-audio frequency band and the middle-audio frequency band;
in step S33, delay operation is performed on the EQ compensated high audio segment, mid audio segment and low audio segment.
5. A loudspeaker system hi-fi control method for a stage performance according to claim 4, wherein said step S32 comprises the steps of:
step S321, compensating the sound definition of the high audio frequency band;
step S322, compensating the sound intensity of the middle audio frequency band;
step S323, compensating the sound fullness of the bass segment.
6. A loudspeaker system hi-fi control method for a stage performance according to claim 4, wherein said step S33 comprises the steps of:
step S331, obtaining the sensitivity of the power amplifier device and the loudspeaker;
step S332, performing delay operation on the high audio segment, the middle audio segment and the low audio segment according to the sensitivity of the power amplifier and the speaker.
7. The method for high-fidelity control of a sound box system for stage performance according to claim 4, wherein the power amplifier is a digital power amplifier.
8. A loudspeaker system high fidelity control system for stage performance, characterized in that the system employs the control method of any one of the preceding claims 1-7.
CN202110123315.5A 2021-01-29 2021-01-29 High-fidelity control method and system for sound box system for stage performance Active CN112911461B (en)

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