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Acoustic characteristics of stage sound reinforcement system

Release time：

2023-07-25 16:53

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Acoustic characteristics must not only meet the requirements of the national standard for acoustic characteristic indicators, but also meet the requirements of subjective listening, because acoustic characteristics indicators cannot fully reflect the actual sound effect, and the quality of sound is determined by people's subjective listening feelings.

 

In acoustic design, electroacoustic and sound building design should cooperate well to meet the following subjective listening requirements:

 

1. Appropriate loudness Loudness is the intensity of the actual listening feeling, which is directly related to the large sound pressure level index of the sound reinforcement system, for the performance, only to achieve enough loudness, so that the stage acoustics can be fully expressed. The output power of the system, the placement of the speakers, etc. will directly determine the loudness status of the listening area.

 

2. High definition

 

When used as a speech, the clarity of the language must be guaranteed, and if people cannot hear the speaker's language clearly, it will affect the effect of the speech. Therefore, the design of electroacoustic systems should fully consider improving language intelligibility.

 

3. Adequate fullness

 

The performance effect with good fullness can make the vocals full and rich, and the music sound melodious and active. In the electroacoustic system, only by using stage audio peripheral equipment to effectively process the sound signal and reasonably select the speaker, the fullness of the sound can meet the requirements.

 

Computer-aided design of acoustic characteristics of sound reinforcement system is an ideal method for engineering design using modern technical means, with high precision, high efficiency, and more importantly, no need to wait until the end of installation and debugging to know the engineering design results. The acoustic characteristics computer design system has very good credibility and accuracy, and when the sound data input into the hall is accurate enough, the calculation data is compared with the final electroacoustic measurement results, and the error can be controlled within decibels. This is sufficient for engineering design and installation and commissioning, and it also has good design, installation and commissioning guidance, which has been well verified in previous engineering designs.

 

The use of acoustic CAD computer system to design and calculate the acoustic characteristics of the sound reinforcement system of the hall, gymnasium (field), multi-function hall and lecture hall means that the design and installation and commissioning results can be known without waiting for the system installation, commissioning and measurement. In other words, according to the stage audio system and design calculation results given in this design scheme, the acoustic characteristics of the sound reinforcement system expected by the system have been clearly seen.

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