CN110278520B - Digital sound amplification system and method - Google Patents
Digital sound amplification system and method Download PDFInfo
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- CN110278520B CN110278520B CN201910544024.6A CN201910544024A CN110278520B CN 110278520 B CN110278520 B CN 110278520B CN 201910544024 A CN201910544024 A CN 201910544024A CN 110278520 B CN110278520 B CN 110278520B
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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
- H04R27/00—Public address systems
Abstract
The invention relates to a digital sound amplifying system and a digital sound amplifying method, and relates to the technical field of sound amplifying systems. The system comprises an integrated sound box, a sound pickup unit and a control unit; the integrated sound box comprises an input unit, a digital processing unit, a power amplification unit, a loudspeaker unit and a power supply module; a digital audio processing module in the digital processing unit carries out dynamic audio processing on the audio signal according to the configuration information; the power amplification unit receives the processed audio signal; the loudspeaker unit receives the amplified audio signal; the power supply module supplies power to the integrated sound box; the sound pickup unit picks up audio signals in an acoustic environment; the control unit can change the configuration information; the configuration information comprises a simple mode, a professional mode and an advanced mode. Most parts of the traditional sound amplifying system are integrated in the integrated loudspeaker box, the control unit is additionally arranged, and the complex tuning work is simplified by utilizing a plurality of modes preset in the digital audio processor, so that the possibility is provided for zero-base tuning.
Description
Technical Field
The invention relates to a digital sound amplifying system and a digital sound amplifying method, and relates to the technical field of sound amplifying systems.
Background
The sound amplification system comprises a microphone for converting sound into an electrical signal, a device for amplifying and processing the signal, a transmission line, and a loudspeaker for converting the signal into an acoustic signal. Public address systems are generally systems that amplify the voice of a speaker in real time to a listener, usually in the same sound field. The sound field mainly comprises the sound source and its surrounding acoustic environment.
A successful sound amplification system must have sufficient loudness and clarity and be able to make the sound uniformly cover the audience, while not covering the area where there are no listeners. This requires a professional to properly adjust the sound reinforcement device according to factors such as the user of the sound reinforcement device and the surrounding sound environment, so as to ensure that the sound reinforcement device provides sufficient loudness and sufficient clarity. In practice, however, the tuning technicians who can make corresponding changes according to the field conditions are few and few, and most of the tuning technicians are adjusted according to experience; and the user has no experience and cannot tune the music at a glance. So even if the sound amplification system is capable of providing sufficient loudness and sufficient intelligibility, it may not be possible to do so for human reasons, etc. Therefore, there is a need for a sound reinforcement system that can simplify the operation of the system to solve the problem.
Disclosure of Invention
In order to solve the technical problems and overcome the defects of the prior art, the technical scheme aims to provide the digital sound amplifying system which can meet both professional requirements and general requirements.
The purpose of the technical scheme is realized by the following technical scheme: a digital sound amplifying system comprises an integrated sound box, a sound pickup unit and a control unit;
the integrated sound box comprises an input unit, a digital processing unit, a power amplification unit, a loudspeaker unit and a power supply module;
the input unit comprises a balanced input module, an unbalanced input module, a Bluetooth audio input module, an infrared audio input module, 2.4G and 5.8G audio input modules, and the input of at least one audio input module is realized through the pickup unit;
the digital processing unit comprises a digital audio processing module; the digital audio processing module carries out dynamic audio processing on the audio signal subjected to analog-to-digital conversion according to the configuration information;
the power amplification unit receives the audio signal processed by the DSP;
the loudspeaker unit receives the audio signal amplified by the power amplification unit;
the power supply module supplies power to the integrated sound box;
the sound pickup unit picks up the audio signal in the sound environment of the digital sound amplifying system and inputs the audio signal through the input unit;
the control unit is used for changing the configuration information;
the configuration information comprises a simple mode, a professional mode and an advanced mode.
The further improvement of the technical scheme is as follows: the simple mode is the use level set by personnel on the basis of tuning zero; the professional mode is the use level set by a person with a certain tuning base; the advanced mode is a grade for the use of the attorney at the fever friend level.
The further improvement of the technical scheme is as follows: the differences of the simple mode, the professional mode and the advanced mode comprise a noise strategy, a filtering strategy, an equalization strategy and an effect strategy in the digital audio processing.
The further improvement of the technical scheme is as follows: the two-dimensional code is arranged on the box body, the front end control unit and the integrated sound box units form distributed control of a C/S framework in a code scanning mode, or the front end control unit and at least 2 integrated sound box units form centralized unified control of a B/S framework in a code scanning mode.
The further improvement of the technical scheme is as follows: the communication mode of the control unit and the integrated sound box unit comprises a wired mode and/or a wireless mode.
The invention has the beneficial effects that: the invention is different from the traditional sound amplifying system, and most parts of the traditional sound amplifying system are integrated in the integrated sound box; therefore, compared with the traditional sound amplifying system, the sound amplifying system has the advantages that the control unit is additionally arranged, and the control unit is used for selecting a plurality of modes preset in the digital audio processor, so that complicated tuning work is simplified, and the possibility is provided for zero-base tuning.
The purpose of the technical scheme is realized by executing the following steps:
1) starting the sound amplification system;
2) the digital processing unit reads default configuration information from a memory of the integrated sound box;
3) the state of the communication is detected and,
the integrated sound box tries to be connected with the control unit, and if the connection is unsuccessful, the attempt is continued until the connection is successful; after the connection is successful, waiting for receiving a sound box configuration instruction sent by the control unit;
4) after the user updates the configuration information through the control unit, the control unit sends a sound box configuration instruction to the integrated sound box unit, and the digital audio processing module applies the updated configuration information to process each path of audio signals picked up by the sound pickup unit; storing the updated configuration information, and returning to the step 3) until the sound reinforcement system is closed; the user can select a simple mode, a professional mode and an advanced mode through the control unit.
The further improvement of the technical scheme is as follows: and 4) picking up at least one path of audio signal by the sound pickup unit.
The further improvement of the technical scheme is as follows: and the digital processing unit reads default configuration information from a memory of the integrated sound box.
The technical scheme of the invention has the following beneficial effects: according to the invention, a digital sound amplifying system for real-time tuning is realized according to the change of the configuration information of the control unit, and a user can select a simple mode, a professional mode and an advanced mode to carry out tuning work according to the actual situation of the user.
Drawings
Fig. 1 is a block diagram of a digital sound amplification system according to an embodiment of the present invention;
fig. 2 is a flow chart of a simplified usage of a digital sound amplification system according to an embodiment of the present invention;
the reference signs are: the sound collecting and amplifying device comprises a control unit 1, an integrated sound box 2, a sound pickup unit 3, an input unit 4, a loudspeaker unit 5, a power supply module 6, a power amplifying unit 7 and a digital processing unit 8.
Detailed Description
Examples
A digital sound amplifying system of the present invention is shown in fig. 1, and includes an integrated sound box, a sound pickup unit, and a control unit. The integrated sound box comprises an input unit, a digital processing unit, a power amplification unit, a loudspeaker unit and a power supply module. The input unit comprises a balanced input module, an unbalanced input module, a Bluetooth audio input module, an infrared audio input module, 2.4G and 5.8G audio input modules, and at least one audio input module is used for inputting through the pickup unit. The digital processing unit comprises a digital audio processing module; and the digital audio processing module performs dynamic audio processing on the audio signal subjected to analog-to-digital conversion according to the configuration information. And the power amplification unit receives the audio signal processed by the DSP. And the loudspeaker unit receives the audio signal amplified by the power amplification unit. The power module supplies power to the integrated sound box. And the sound pickup unit picks up the audio signal in the sound environment of the digital sound amplifying system and inputs the audio signal through the input unit. And the control unit is used for changing configuration information, and the configuration information comprises a simple mode, a professional mode and an advanced mode.
The simple mode is the use level set by zero basic personnel for the tuning professional; the professional mode is a usage level set for a person with a certain tuning basis; the advanced mode is a level used by the disc-jockey for the fever level.
The differences of the simple mode, the professional mode and the advanced mode comprise a noise suppression strategy, a filtering selection strategy, an equalization adjustment strategy and an effect selection strategy in the digital audio processing.
In a simple mode, a user can select a noise suppression level through the control unit, select a common filter, perform 3-segment equalization and select a preset effect scheme.
In the professional mode, a user can customize a noise suppression value and the type of a filter by a control unit, and the frequency segmentation of equalization processing can be 3, 7 and 16, so that various effect selections are customized.
In the advanced mode, a user can select the noise suppression type and level and adjust the values of various items through the control unit, the type of the self-defined filter and the algorithm factor are defined, the frequency segmentation of the equalization processing can be 3, 7, 16 and 31, and various effects and various effect coefficients are enabled/disabled.
The control unit can be a PC terminal, a mobile terminal or other forms; the control unit may be implemented in the form of a client, a web interface, a mobile phone APP, a wechat applet, or the like.
The two-dimensional code is arranged on the box body, the front-end control unit and the integrated sound box units form distributed control of a C/S framework in a code scanning mode, or the front-end control unit and at least 2 integrated sound box units form centralized unified control of the B/S framework in a code scanning mode.
The communication mode of the control unit and the integrated sound box unit includes a wired mode and/or a wireless mode, such as an ethernet, a television network, a telephone network, a cable network, a bluetooth, infrared, WiFi, NB-IoT, a 3G, a 4G, a 5G operator network, and the like.
As shown in fig. 2, a sound amplifying method performs the following steps:
1) starting the sound amplifying system, starting the sound box and turning on the control unit;
2) the digital processing unit reads default configuration information from a memory of the integrated sound box;
3) detecting a communication state, connecting the integrated sound box with the control unit in an attempt mode, and if the connection is unsuccessful, continuing the attempt until the connection is successful; after the connection is successful, waiting for receiving a sound box configuration instruction sent by the control unit;
4) after the user updates the configuration information through the control unit, the control unit sends a sound box configuration instruction to the integrated sound box unit, and the digital audio processing module applies the updated configuration information to process each path of audio signals picked up by the pickup unit; storing the updated configuration information, and returning to the step 3) until the sound reinforcement system is closed; the user can select a simple mode, a professional mode and an advanced mode through the control unit.
Further, in step 4), the sound pickup unit picks up at least one path of audio signal.
Further, the digital processing unit reads the default configuration information from the memory of the integrated speaker.
It can be seen from the above process that the sound reinforcement process using the system of the present invention does not require parameter setting for each device of the sound reinforcement system, only by selecting the corresponding level at the control unit. In the conventional sound amplifying system, even if only the gain framework is adjusted, the overhead allowance of a plurality of devices needs to be considered, and attenuators are additionally arranged among sound mixing consoles, loudspeakers and loudspeakers for adjustment, so that the whole system can be ensured to work at zero scale mixing and have the same overhead allowance.
It can be seen that the conventional sound amplification system has a certain threshold in the aspect of adjustment, and is difficult to use without training or professional guidance, and the simple mode provided by the application better solves the problem, and the simple selection of the control unit is adopted, so that the process of simplifying the complex problem is completed, the use experience of a user is greatly improved, and even non-professional persons can carry out the most basic tuning work through the sound amplification system.
Finally, it should be noted that the described embodiment is only one specific application example of the present invention, and is not intended to limit the present invention, and for those skilled in the art, alternative components may be selected according to specific situations in practical application, but the scope of the present invention is not limited in any way, and any modification, equivalent replacement, improvement, etc. made by the present invention should be included in the scope of the present invention.
Claims (8)
1. A digital sound amplification system, characterized by: the sound box comprises an integrated sound box, a sound pickup unit and a control unit; the integrated sound box comprises an input unit, a digital processing unit, a power amplification unit, a loudspeaker unit and a power supply module; the input unit comprises a balanced input module, an unbalanced input module, a Bluetooth audio input module, an infrared audio input module, 2.4G and 5.8G audio input modules, and the input of at least one audio input module is realized through the pickup unit; the digital processing unit comprises a digital audio processing module; the digital audio processing module carries out dynamic audio processing on the audio signal subjected to analog-to-digital conversion according to the configuration information; the power amplification unit receives the audio signal processed by the DSP; the loudspeaker unit receives the audio signal amplified by the power amplification unit; the power supply module supplies power to the integrated sound box; the sound pickup unit picks up the audio signal in the sound environment of the digital sound amplifying system and inputs the audio signal through the input unit; the control unit is used for changing the configuration information; the configuration information comprises a simple mode, a professional mode and an advanced mode.
2. A digital sound amplification system according to claim 1, wherein: the simple mode is the use level set by personnel on the basis of tuning zero; the professional mode is the use level set by a person with a certain tuning base; the advanced mode is a grade for the use of the attorney at the fever friend level.
3. A digital sound amplification system according to claim 1, wherein: the differences of the simple mode, the professional mode and the advanced mode comprise a noise strategy, a filtering strategy, an equalization strategy and an effect strategy in the digital audio processing.
4. A digital sound amplification system according to claim 1, wherein: the integrated loudspeaker box is characterized in that two-dimensional codes are arranged on the box body of the integrated loudspeaker box, the control unit and the integrated loudspeaker box form distributed control of a C/S framework in a code scanning mode, or the control unit and at least two integrated loudspeaker box units form centralized unified control of the B/S framework in the code scanning mode.
5. A digital sound amplification system according to claim 1, wherein: the communication mode of the control unit and the integrated sound box unit comprises a wired mode and/or a wireless mode.
6. A sound reinforcement method for a digital sound reinforcement system according to claim 1, characterized by the following steps: 1) Starting the sound amplification system; 2) The digital processing unit reads default configuration information from a memory of the integrated sound box; 3) detecting a communication state, wherein the integrated sound box tries to be connected with the control unit, and if the connection is unsuccessful, the integrated sound box continues to try until the connection is successful; after the connection is successful, waiting for receiving a sound box configuration instruction sent by the control unit; 4) After the user updates the configuration information through the control unit, the control unit sends a sound box configuration instruction to the integrated sound box unit, and the digital audio processing module applies the updated configuration information to process each path of audio signals picked up by the sound pickup unit; storing the updated configuration information, and returning to the step 3) until the sound reinforcement system is closed; the user can select a simple mode, a professional mode and an advanced mode through the control unit.
7. The sound reinforcement method according to claim 6, characterized in that: and 4) picking up at least one path of audio signal by the sound pickup unit.
8. The sound reinforcement method according to claim 6, characterized in that: and the digital processing unit reads default configuration information from a memory of the integrated sound box.
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| CN107801141B (en) * | 2017-10-10 | 2018-11-16 | 江苏中协智能科技有限公司 | A kind of auditorium sound reinforcement system |
| CN109788398A (en) * | 2017-11-10 | 2019-05-21 | 阿里巴巴集团控股有限公司 | Sound pick up equipment for far field voice |
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| CN204069345U (en) * | 2014-07-24 | 2014-12-31 | 上海飞乐音响股份有限公司 | A kind of double copies conference amplifying system |
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