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Rattop audio and video digital products are widely used in education, government, enterprises and institutions, emergency management, smart cities, rail transit, telecommunications, power, manufacturing and many other fields!
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Campus Report Hall Conference System Construction SchemeThe multimedia lecture hall mainly realizes various functions such as various large, medium and small international conferences, ordinary conferences, entertainment performances, multimedia screenings, reports, training, lectures, synchronous recording of conferences, intelligent centralized control, etc.
Campus Broadcasting System Construction SchemeThe digital IP network broadcasting system adopts the TCP/IP network technology widely used in the world today, and transmits the audio signal in the form of data packets on the local area network and wide area network.
Campus Conference Room Conference System Construction SchemeThe school conference room is generally used for academic reports, small and medium-sized meetings, video conferences, training, organizing school activities and receiving visitors.
Construction scheme of professional sound reinforcement system in campus gymnasiumThe school gymnasium is mainly used to host school basketball, volleyball, table tennis, badminton and other competitive sports competitions, and is also used for multi-functional use such as assemblies and large-scale cultural and entertainment activities.
Hospital Report Hall Conference System SolutionThe multimedia lecture hall mainly realizes various large, medium and small international conferences, ordinary conferences, entertainment performances and multimedia screenings.
Meeting System Solution of Hospital Meeting RoomThe use of the hospital conference room is very extensive, generally held for various meetings within the hospital, academic exchange meetings, patient reception and consultation
Solution of Public Broadcasting System in Hospital ParkThe digital IP network broadcasting system uses TCP/IP network technology, which is widely used in the world today, to send audio signals in the form of data packets.
Solution of Station Public Address SystemThe digital IP network broadcasting system adopts the TCP/IP network technology widely used in the world today, and the audio signal is in the form of data packets in the local area network.
High-speed public address system solutionsHighway broadcasting system plays a very important role in traffic operation, passenger service, disaster prevention and rescue, equipment maintenance and so on. When the subway passenger flow surges caused by major events and festivals, as an important means of implementing emergency passenger transport organization, it provides guarantee for the operation organization of large passenger flow.
Solution of High-speed Visual Intercom Broadcasting SystemThe visual network broadcasting intercom system integrates the network digital audio transmission system and the network intercom system. The main equipment in the system can be used as broadcasting equipment or intercom equipment. The two systems are compatible with each other to realize centralized management and unified control.
Airport Public Address System SolutionThe digital IP network broadcasting system adopts the TCP/IP network technology widely used in the world today, and transmits the audio signal in the form of data packets on the local area network and wide area network, which completely solves the problems of poor sound quality, complex maintenance and management, and poor interactive performance of the traditional broadcasting system.
Airport Meeting Room Multimedia Conference SystemAirport meeting rooms are generally used for various business meetings, training and education, volunteer and volunteer organizations, and temporary office purposes. The airport meeting room provides a convenient and professional place to meet the needs of different organizations and people.
Government and Enterprise Unit Building Broadcasting System SolutionGovernment and enterprise units play an important role in serving the society, creating culture, providing employment opportunities, providing high-quality products and services to consumers and feeding back the society.
Solution of Conference Sound Acoustic System in Conference Room of Government and Enterprise UnitsThe conference room of government and enterprise units is an important workplace and communication platform, which is widely used and diversified. The equipment selection of meeting room audio sound reinforcement system should be based on the functional requirements of the meeting place.
Multimedia Conference System Solution for Government and Enterprise Conference RoomAs an important place for enterprises, governments and other important units, leaders and employees discuss and solve work problems together. The requirements for conference rooms are getting higher and higher. Various intelligent systems are needed to ensure the stability, safety, convenience and efficiency of the meeting agenda.
Restaurant Public Address System SolutionThe application of public address system in restaurants is constantly integrating into the needs and trends of the times. This application is not just to provide background music, but through a variety of ways to enhance the dining experience, convey information and create a distinctive atmosphere.
Hotel Ballroom Conference Sound System SolutionThe selection of audio sound reinforcement system equipment in the banquet hall should be based on the functional requirements of the meeting place and combined with the actual building layout conditions. The principle of system configuration should follow the principles of applying new technology, reasonable system configuration, stable and reliable system operation and convenient operation.
Hotel Smart Cloud Broadcasting System SolutionThe hotel's broadcasting system is mainly to cover up the noisy noise, to provide guests with a leisurely and fresh environment, to ease the mood of the guests, as well as broadcast notification, search for people and other public broadcasting functions.
Shopping Mall Public Address System SolutionIn recent years, with the continuous development of the economy, China's residents consumption level continues to improve, shopping demand has also been rapid development, shopping malls are a collection of food, entertainment, leisure and a variety of business activities in one of the public places
Solution of Community Smart Cloud Broadcasting SystemAs one of the most important information dissemination tools to create a harmonious environment in residential quarters, the public broadcasting system has become an indispensable system for the normal operation of many residential quarters, which is inseparable from the intelligent weak current system in residential quarters.
Solution of Public Broadcasting System in Museum LibraryIn museums and libraries, the application of public address systems is becoming more and more important. As public cultural institutions, museums and libraries bear the important responsibility of publicizing cultural knowledge, educating the public and providing information services.
Solution of Public Broadcasting System in Park Scenic AreaIn recent years, the warming of tourism has accelerated the informatization construction of parks and scenic spots. Especially in terms of tourist safety and scenic spot management, tourism units have adopted new technologies and new products to carry out substantial transformation and construction to meet the needs of the expanding tourism market.
Theatre Concert Hall Conference Sound System SolutionDriven by the background of the times, the theater music multimedia conference sound reinforcement system integrates advanced audio and video processing technology, wireless technology and interactive functions to achieve high-quality, flexible and convenient music performance and conference experience.
Factory Meeting Room Multimedia Conference System SolutionAs an important meeting place for government and enterprises, multimedia conference rooms are used by leaders and employees to discuss and solve work problems. The requirements for conference rooms are getting higher and higher. It is necessary to match various intelligent systems to ensure the stability, safety, convenience and efficiency of the meeting agenda.
Factory Visual Intercom Broadcasting System SolutionThe IP network visual broadcast intercom system integrates the IP network digital broadcast system with the IP network intercom system. The main equipment in the system can be used as broadcast equipment or as intercom equipment. The two systems are compatible with each other to realize centralized management and unified control.
Solution of Factory Digital IP Network Broadcasting SystemIn order to strengthen the management of the factory area and create a comfortable and relaxed working environment, many modern enterprise factories have the need to build and transform an IP network broadcasting system, including factory fire safety.
Solution of Digital IP Network Broadcasting System for StadiumA gymnasium is a venue for sports competitions, performances and other large-scale events. In order to provide a good viewing and listening experience, digital IP network broadcasting system is widely used in the stadium.
Gymnasium conference sound reinforcement system solutionWith the continuous progress of technology, the technology of conference sound reinforcement system is also constantly innovating and developing. The new generation of sound reinforcement system can realize digital audio transmission, networked operation and intelligent control, and provide more high-quality and convenient audio experience for sports venues.
Judicial organ report hall meeting system solutionThe construction of the multimedia conference system in the report hall of the judicial organ is closely related to the development of the times and the actual needs. It can meet the informatization needs of the judicial organ, the needs of cross-regional cooperation, and the needs of real-time and effective communication.
Judiciary Multimedia Conference RoomAs an important place for judicial organs and other important places, leaders and employees discuss and solve work problems together. The requirements for the conference room are getting higher and higher, and various intelligent systems are needed to ensure the stability of the meeting agenda.
Solution of Sound Acoustic System for Meeting Room of Judicial OrgansThe application of the conference sound reinforcement system in the conference room of the judicial organ can improve the sound transmission effect, improve the communication efficiency of the participants, and provide flexible volume and sound control.
Command Center Conference System SolutionThe command center is a place for consultation and command during the handling of public incidents. It has the function of holding a video conference, which is convenient for leaders to listen to the situation report and expert consultation suggestions, and conduct remote command. With image access function
Distributed Audio and Video Management System SolutionThe distributed audio and video integrated management system is dominated by command technology and information technology, making full use of modern communication technology, network technology, automation technology, electronic monitoring and other advanced technologies, building a data transmission network as a link, supported by computer information systems.
Conference Speech System SolutionThe conference presentation system includes a traditional conference system, a wired digital conference system, a wireless conference system, and a 5G WIFI conference system, which provides participants with functions such as discussion, voting, sign-in, camera tracking, and simultaneous interpretation during the conference.
Conference sound reinforcement system solutionThe conference sound reinforcement system includes sound reinforcement equipment and sound field components, mainly including sound sources and its surrounding sound environment, the sound into electrical signals of the microphone, signal amplification and signal processing equipment, transmission lines, the signal into acoustic signals of the speaker and the acoustic environment of the audience area.
System Solution of Conference Recording and Broadcasting SystemThe conference recording and broadcasting system mainly uses the recording and broadcasting host with various audio and video equipment to realize real-time recording of various materials such as the speeches of the conference personnel and the conference process in the conference. It can also allow people outside the conference hall to remotely access the recording and broadcasting host through mobile phones or computers through web pages to watch in real time and participate in the conference remotely, thus meeting the use needs of many enterprises.
Conference all-in-one system solutionThe conference all-in-one system has the functions of writing, annotation, video conference, one-button screen projection, document management, etc. It integrates curtain, projector, electronic whiteboard, monitor, computer, advertising machine and audio, and can easily realize various conference scenes, product display and publicity, etc.
Meeting Reservation System SolutionThe conference reservation system is an intelligent management system that integrates reservation management and sign-in recognition. Conference organizers can make reservations through the software platform, conference terminal equipment and WeChat public number, and can find free conference rooms that meet the requirements at a glance through real-time conference monitoring information.
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Products
Rattop's public broadcasting system includes smart cloud platform broadcasting, village-to-village broadcasting, highway broadcasting, visual docking broadcasting, etc......
View More >Public address system Conference System Lighting system Conference management system Distributed audio and video management system
Smart Cloud Platform Digital Network Broadcasting SystemThe intelligent cloud platform IP network broadcasting system is based on the mobile Internet and the Internet of Things environment. It adopts cloud computing, big data processing technology and distributed server architecture "cloud platform system". It controls the front end and terminals to access through the Internet or mobile Internet. It provides real-time and reliable audio broadcasting, paging and shouting, cross-regional, multi-platform management and other functions for large-scale broadcasting terminals.
Visual intercom systemIn order to cooperate with the "Thirteenth Five-Year Development Plan for Transportation Informatization" and adapt to the informatization development of the expressway industry, the integrated communication command technology is applied to the daily management of the expressway, and the intelligent operation of the expressway is realized. Highway visual intercom command and dispatch system solution. Through the integration of intercom with highway toll booth, emergency help, emergency broadcast, monitoring and office communication systems, it helps the high-speed industry to maximize management efficiency and economic benefits.
All-digital two-way IP network broadcasting systemThe digital two-way IP network broadcasting system is based on the Internet protocol, which uses network technology to convert analog audio signals into digital signals and transmit them in the local area network. It breaks through the content limitation, space limitation and function limitation of the traditional analog broadcasting system. Diversified broadcasting function design has diversified broadcasting functions such as timing broadcasting, live broadcast on demand, multi-area audio distribution, high concurrency, low delay, constant pressure backup mode, etc. The system is based on the existing computer network construction and does not need to be wired separately, it realizes the all-digital network broadcasting system of audio broadcasting, video monitoring and computer network.
Every Village "Big Horn"In order to improve the level of public cultural services and help rural revitalization and the construction of a new socialist countryside for digital rural construction, Rattop Technology has joined hands with China Mobile
5G "cloud" platform broadcast systemThe 5G cloud platform broadcasting system refers to the 4G and 5G networks with super coverage as pipelines and intelligent sound columns, intelligent receiver, cloud microphones and other equipment as broadcasting carriers to provide intelligent supervision methods for various management departments and timely transmit information such as policies and regulations, party building knowledge, weather forecast, garbage classification, epidemic prevention knowledge, emergency measures, etc.
Analog broadcasting systemAnalog broadcasting system uses analog technology, the sound quality is slightly inferior to that of digital broadcasting system, but the price is cheaper than that of digital broadcasting system. The main characteristics of analog broadcasting system are low price, easy maintenance and wide application range.
Teaching sound reinforcement systemAn instructional sound reinforcement system is an educational sound system specifically designed to provide balanced, clear sound amplification in places such as classrooms or conference rooms. characteristics. It needs to be matched with microphones, speakers and other equipment. After the construction is completed, it will help improve the sound quality and volume of multimedia teaching, and realize the function of easy and free speech and teaching.
Meeting Hand-in-Hand SystemHand-in-hand conference system is a specially designed conference system, its biggest feature is the use of microphone end-to-end series connection. This system ensures that everyone has an equal opportunity to participate in the discussion and that there is no confusion when speaking at the same time.
Digital Hand-in-Hand SystemWith the advent of the mobile Internet era and the development of touch technology and WIFI Internet, Rattop Technology has successfully launched a 5G/WIFI wireless conference system, which adopts standard 802.11n technology
Conference Microphone (Wired and Wireless)Conference microphone is one of the important equipment to ensure the smooth progress of the conference. It not only needs to have high-quality sound quality, but also needs to have the characteristics of ease of use, appearance design, anti-howling function and easy maintenance to meet the actual needs of the conference scene.
Surrounding the conferenceThe conference system peripheral equipment refers to the auxiliary equipment related to the conference system. These equipment can enhance the function and performance of the conference system, and improve the efficiency and comfort of the conference.
Professional sound reinforcement systemProfessional conference sound reinforcement system is suitable for conference sound reinforcement, multimedia activities, theatrical performances and other uses of comprehensive information resources exchange places.....
Stage LightingAccording to the development of the plot, the characters and specific scenes are rendered visually, and the design intention is reproduced to the audience as a visual image. The stage lighting system of Rattop Technology ...
Lighting intelligent controlIntelligent lighting control system can be widely used in homes, offices, hotels, shopping malls and other places to improve the comfort and efficiency of life and work.
Smart paperless office systemIn order to comply with the development of information technology application innovation industry, maintain data security and network security, realize independent control in the field of information technology, and ensure...
Conference Reservation SystemThe meeting reservation system is a kind of meeting schedule which can help the organizer to create, manage and query the meeting schedule easily, and ensure that the meeting facilities are reasonably allocated and used.
Electronic table board systemElectronic table board system is a kind of information that can display the names, positions, departments and other information of participants through electronic screens or mobile devices, so that participants can more easily understand the situation of participants in the meeting.
Meeting tablet all-in-one machineThe conference tablet all-in-one machine integrates computer, monitor, audio and other functions, and can easily realize various conference scenes, product display and publicity, etc.
Distributed systemFocusing on the new ecology of the development of the digital economy industry, Rattop Technology's distributed audio and video management system came into being, providing a new concept of management and control platform...
Central Control/MatrixWith the continuous updating and reform of social information technology, various audio-visual facilities, Internet of things products, multimedia equipment into the daily. Traditional operations are becoming more and more...
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Rattop Technology is deeply involved in the real economy, and audio and video digital products are widely used in education, government, enterprises and institutions, emergency ......
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Focusing on the digital economy industry, and actively complying with the development trend of networked, intelligent, and digital management of the audio and video industry, Rattop ......
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About Us
Rattop (Guangdong) Technology Co., Ltd. focuses on the digital economy industry. It is a national high-tech enterprise based on the Internet of Things platform with audio as the core......
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Manufacturer of integrated audio and video solutions
News
What if the audio system is disturbed during the meeting?
The signal flow of the conference sound reinforcement system: the transmission and processing process of the audio signal is mainly as follows: the voice of the speech is picked up by the microphone, and the human voice is converted into an electrical signal and sent to the mixer and various audio processing equipment, which are amplified, mixed, distributed, modified by sound quality and processed by other music signals, and then sent to the power amplifier for amplification and restored to sound by the speaker.
The above analysis shows that the mixer is the convergence point of signal processing. How to adjust the knobs and function keys of the mixer is the key to debugging.
There is a problem with audio interference:
1. Large noise
It affects the clarity, softness and brightness of the sound, and can mask the sound of the venue in severe cases.
There are two main factors for this situation:
①. Noise floor. Due to the excessive gain, the use of automatic gain control, impedance mismatch, etc., the background noise will appear.
②. The microphone "flutter. The microphone is the first link of the sound amplification system, and its signal quality directly affects the whole conference effect. Therefore, it should be reasonably selected and set according to its characteristics and performance, the characteristics of sound source reproduction and the relative relationship between the sound sources.
For speakers with strong sound breaking, a microphone with anti-"flutter" sound should be selected.
2. Large distortion
It is related to the nonlinear distortion and human factors of the equipment. It is characterized by hoarseness, damage, sharp and piercing, which will affect the clarity, softness, brightness, fullness and sense of the scene.
There are many reasons for the distortion, such as the sensitivity of the microphone is too high, the placement is not appropriate, the microphone power supply with phantom power supply is not normal, the level adjustment of the mixer is too large, the adjustment of the equalizer is not appropriate, and the equipment The impedance does not match, etc.
3. The level is not standard
Before debugging, the mixer, equalizer and other equipment are not adjusted, causing the signal level to be too high or too low. In addition, the unbalanced line output is directly connected to the balanced line input, causing the signal level to drop.
4. Uneven frequency response
It is related to the frequency response index of the equipment and human factors, such as the microphone's direction deviating from the sound source, the medium and low frequency attenuation too much, the microphone transmission line is too long, etc., which will affect the clarity, layering and fullness of the sound restoration.
5. Sound Proportional Imbalance
If the sound ratio between different microphones or microphones and music is out of balance, it will affect the balance of sound restoration, resulting in a decline in the overall effect of the conference.
6. Improper reverberation delay
Different conference types and pickup environments have different requirements for reverberation and delay, so the parameters of reverberation and delay should be adjusted according to acoustic characteristics.
The main determinants are:
①. The size of the venue affects the time of reflection in the reverberation of the sound field and the sense of time on the hearing.
②. The reverberation time reflects the process of sound diffusion from the sound source to the surrounding absorption and reflection. The reverberation time depends on the size of the venue. The larger the space, the greater the reverberation time. To compensate for and modify the defects of some sounds through audio processing equipment, but improper adjustment will be counterproductive. If the reverberation time is too long, the sound will have a sense of "turbidity", so it is necessary to combine the actual situation and add the reverberation effect reasonably to enhance the depth of the sound. The same is true for delay processing.
③. The frequency characteristics of reverberation reflect the reverberation effect and sound quality of sound at different frequencies. Be familiar with the frequency characteristics of reverberation, adjust the proportion of direct sound and reflected sound picked up by the microphone, and increase the realism and clarity of the sound.
④. Sound diffusion is a parameter that reflects the acoustic characteristics of the venue. Microphones should be set up reasonably to make up for the defects of the sound diffusion conditions of the venue, and at the same time to avoid the direction of chattering echo area and strong reflection.
sound system common interference:
The interference of audio signal in the transmission process is multifaceted, common power interference, interference between devices, light interference, etc.
1. Power interference. Poor grounding of the power supply, poor ground contact and impedance mismatch between the equipment, the power supply of the equipment has not been "purified", and the audio line and AC wire are laid in the same pipe, in the same trench or on the same bridge, all of which will cause clutter interference to the audio signal and form a low-frequency AC "buzzing" sound.
Interference between devices. "Howling" is caused by positive feedback between the speaker and the microphone. The main reason is that the microphone is too close to the speaker or the microphone points to the speaker. "Empty sound" is generated by sound wave delay. If the microphone picks up both the sound source signal and the signal restored by amplification, or two microphones with different distances from the sound source pick up the signal of the same sound source, or one microphone picks up the signal of another microphone restored by amplification, the corresponding distance difference will be generated and the delay will be caused. When these signals are superimposed, some frequency components cancel each other out, forming a "empty sound".
3, light interference. If the lighting lamp started intermittently by ballast is used in the meeting place, high frequency radiation will be generated when the lamp tube is excited, and the microphone and its lead wire will be connected in series, resulting in a "click" sound. If the microphone line is too close to the lamp line, there will also be a "squeak" sound. In addition, the external high-frequency electromagnetic will also produce interference.
There is a problem with audio interference:
Conference system audio interference processing method:
The sound reduction of conference sound reinforcement should be based on the theoretical knowledge of acoustics and different actual conditions, flexibly adjust the mixer and equalizer, process and beautify the sound, make up for the defects of the sound field, and create a more ideal acoustic environment. Appropriately adjust the compression limiter to avoid overload and distortion of sudden large peak signals. At the same time, it is necessary to prevent the compression limiter from being in a compressed state for a long time to make the sound smooth and round.
For power interference, the following methods can be taken to solve:Increase the power filter, use the resonant circuit to filter out harmonics, "purify" the output power; The input and output lines of the signal are routed separately from the power line, and cannot be wired in parallel to avoid adjacent and cross interference and mutual induction; The twisted power line is used to make the total magnetic flux generated by the two wires cancel each other out. For the "howling" phenomenon, the following methods can be adopted to avoid the formation of inherent resonance points: reducing the sound reinforcement gain; Using equalizer or automatic feedback suppressor to reduce the amplitude of "howling" frequency point; Connecting frequency shifter or phase modulator to destroy the in-phase condition between feedback sound and sound source with offset frequency or phase; Adjust speaker layout, change microphone direction and distance between the two to avoid positive feedback. For the "empty sound" phenomenon, the following methods can be adopted to avoid sound wave delay: select a microphone with strong directivity; Turn off the ST switch in the mixer or pull down the redundant microphone push rod; Adjust the sound source and its sound ratio restored by amplification. For light interference, the following methods can be taken to solve: the microphone line away from the light line; microphone line through the tube shielding; the use of strong anti-interference ability of the microphone. To sum up, in order to make the conference sound better, it is necessary to improve the aesthetic appreciation and artistic accomplishment of the sound, and to conceive and create the restoration of the sound in order to improve the artistic expression of the sound.
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