How to maintain the conference audio equipment?
Most types of electrical appliances that are not commonly used need to be powered on regularly, as do conference audio equipment. Regular electrification helps the machine maintain its normal working state, making components less susceptible to damage. Especially in the wet and rainy plum rain season, regular electrification can utilize the machine's working heat to keep the components dry and prevent mold breakage of the component coils.
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2021
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How can a multimedia conference room quickly build an audio video conference system solution?
With the improvement of information technology in conference organization, the construction of multimedia conference rooms has become increasingly important. The design, purchase, installation, and commissioning of the entire multimedia conference system should be based on factors such as audio, video, power, and lighting.
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2021
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What is the structure of the microphone?
Take omnidirectional MIC, diaphragm type pole ring connection type as an example 1. Dust screen: Protect the microphone head, prevent dust from falling onto the diaphragm, prevent external objects from puncturing the diaphragm, and have a short-term waterproof effect. 2. Housing: The support of the entire microphone head, with other components encapsulated in the housing, is the ground point for the microphone and can also serve as an electromagnetic shield. 3. "Diaphragm: It is a major component of acoustic to electrical conversion, consisting of a taut Teflon plastic film attached to a thin metal ring. The side of the film in contact with the metal ring is coated with a very thin metal layer. The film can be charged, and is also an electrode plate that forms a variable capacitance, and can vibrate.". 4. Gasket: The distance between the two electrode plates of the supporting capacitor is left with a gap to provide a space for the vibration of the diaphragm, thereby changing the electrical capacity. 5. Back plate: The other electrode of the capacitor is connected to the G (gate) electrode of the FET (field effect transistor). 6. Copper ring: Connect the electrode plate to the G (gate) electrode of the FET (field effect transistor) and play a supporting role. 7. Cavity: Fix the plate and ring to prevent short circuit to the housing (S (source) and G (gate) electrodes of FETs). 8. PCB assembly: Equipped with FETs, capacitors, and other devices, it also serves to fix other components. 9. PIN: Some microphones have a PIN (pin) on the PCB, which can be soldered together with other PCBs to connect another front pole type and back pole type. The structure is also slightly different.
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2021
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Test Preparation of Multimedia Conference System
The key to some meeting minutes is not to be able to implement them, but to report upward or report downward. When necessary, they can be used as a reference for meeting minutes: meeting minutes are documents used to record and convey the status of the meeting and discuss matters. Meeting minutes are different from meeting minutes. Meeting minutes are suitable for both public institutions and mass organizations. General. It is important to refine the essence of the conference minutes and summarize them, combing the content and results of the conference with an extremely concise and concise text aspect ratio. It should not only reflect the agreement reached by the participants, but also reflect the valuable views of some comrades. Some meeting minutes also require corresponding analysis and reasoning.
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2021
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Development planning and technical requirements of 4G/5G broadcasting system
3GPP gradually introduced the first version of the multimedia technology broadcast program/multicast service project (MBMS) from Release 9, and evolved into an enhanced multimedia technology broadcast program/multicast service project (eMBMS) with faster transmission and more flexible business process configuration in Release 11. Its improvement at the business process level is mainly manifested in improving video coding and frame counts towards higher pixels; The forward correction (FEC) technology has also been newly introduced.
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