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Solution of Conference Sound Acoustic System in Conference Room of Government and Enterprise Units


Sound reinforcement system for meetings of government and enterprise units-scheme construction


System Overview:
The conference room of government and enterprise units is an important workplace and communication platform, which is widely used and diversified. The equipment selection of conference room audio sound reinforcement system should be based on the functional requirements of the conference 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.

 

Demand analysis:
The fullness of the sound: fullness refers to the enhancement and contrast effect of the direct sound due to the reflection of each interface when listening to the sound in the hall. An acoustically designed hall should feel thick, round, warm and elastic, with a sense of intimacy. Therefore, we strive to make the electric sound reinforcement system of the multi-function hall work in the full field, from the acoustic point of view, it should have sufficient loudness and brightness, medium and high frequency sound is appropriate, bright but not stinging, medium and low frequency energy is sufficient, and the transient response is good. What a great.
The bright and clear sound: the bright and clear sound mainly refers to the high-frequency components in the sound, and the attenuation is slow, and there are rich high-order harmonics. This is of great help to the expression of language and the level of music, giving the audience a feeling of clarity and transparency, just like a Tan Qingshui, looking to the end. What a great.
Sound energy distribution is uniform: the sound energy distribution of each point in the whole hall is uniform, that is, the sound field is evenly distributed, which can ensure that the loudness of the audience in each area is basically the same. In the hall with uniform sound field, the difference between the maximum sound pressure level and the minimum sound pressure level shall not exceed 6dB, and the difference between the maximum sound pressure level (or the minimum sound pressure level) and the average sound pressure level shall not exceed 3dB. In the sound quality design, the following measures can be taken to make the sound fully diffused, and the sound energy distribution is relatively uniform. And so much.
Appropriate reverberation time: the quality of the hall is very close to the reverberation time. Choosing the right reverberation time can improve the clarity of speech and the fullness of timbre. The near-reflection sound helps to strengthen the direct sound, especially the reflection sound from the side wall in the hall, which plays an important role in the sense of space and the sense of the sound. In large halls, near-subreflection sound can be used to make the sound field uniform.
Control of noise and feedback: in the design of the hall sound reinforcement system, the most headache is the background noise of the system and the feedback feedback of the microphone. In terms of sound construction, as the target place is irregular cuboid, it is easy to form the generation condition of simple standing wave. Therefore, we suggest that the owner should fully consider the design of sound construction materials and use surface decorations with appropriate sound absorption coefficient when decorating the hall, in order to obtain moderate early reflection sound, avoid harmful reflection sound, and reduce the sound field conditions of acoustic feedback.
Design ideas:
According to the user's functional requirements, an advanced, reliable and practical conference sound reinforcement system is designed to ensure that the system is stable, safe and easy to operate in various occasions.

Functional advantages:
(1) According to the needs of the sound reinforcement function of the conference room, the sound source processing equipment (mixer, feedback suppressor, audio processor, pre-stage effector, etc.), power amplifier and sound box are configured.
(2) The power sequencer configured in the system can turn on and off the power of the system equipment with one key, which plays a role in protecting the equipment in the system, and at the same time has great convenience.
(3) According to the speech requirements of the conference hall, a set of hand-in-hand is configured, which consists of the conference host, the chairman unit and the representative unit. U-segment wireless microphone is configured to facilitate mobile speech and venue interaction.
In the conference room audio sound reinforcement system, the audio signals of all sound sources are first pre-amplified by the mixer, pre-processed, and then sent to the power amplifier to drive the sound reinforcement speaker, so as to achieve the realization of the entire sound reinforcement system function.

 

Application effect:

Clear sound: The conference sound reinforcement system can amplify the speaker's voice and transmit it to the participants through microphones, speakers and other equipment. In this way, in a large conference room, both the audience in the front row and the back row can clearly hear the speaker's speech, avoiding the loss of information or difficulty in understanding caused by inadequate voice transmission.

Volume balance: By setting the conference sound reinforcement system reasonably, the volume balance of the entire conference room can be achieved. Whether it is the speaker on the stage or the audience in the seat, a relatively balanced volume can be obtained, avoiding the situation that some listeners cannot hear clearly or are shocked by the high volume.

Easy to participate in the interaction: the conference sound reinforcement system can be equipped with a microphone or wireless microphone, so that participants can easily interact. Participants can ask questions, speak, or have a discussion through the microphone without moving to the stage or close to the speaker to communicate. this has enhanced the interactive nature of the conference and promoted exchanges and cooperation among the participants.

Conference minutes: The conference sound reinforcement system can be connected with the recording equipment to record the speech of the conference directly. This helps to subsequently organize, archive or review meeting minutes, improve work efficiency and resolve omissions in discussions.

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