As a hotel hall, after fully considering the future usage and functions of the system, we focus on language clarity, sound transmission gain, music playback quality, as well as convenient operability and flexible function conversion. In addition, it is necessary to fully ensure the compatibility, reliability, and scalability of the system. The hotel banquet hall, from a practical perspective, uses BEENZIONE linear array 41 mode array speakers and auxiliary speakers to radiate the entire venue, ensuring sufficient sound pressure level and balanced pressure rise before and after the event, sufficient to meet various large-scale conferences, wedding banquets, and live performances.

1、 Design method:

Using computer-aided design:

With the advancement of technology, especially the application of digital technology in the audio field, the sound quality of recording, transmission, and playback of sound signals has been greatly improved. However, the quality of sound is not only determined by the device, but also by the acoustic environment and the auditory characteristics of the human ear. The latter appears more important under the same equipment conditions.

So the fundamental issue in sound system design is acoustics, not simply equipment selection and assembly. The final sound quality effect of the hall is the embodiment of the comprehensive design effect of acoustics and building sound. The design of the sound amplification system first needs to study the sound field of the designated space, which is very important. Only by having a deep understanding of the sound field of the hall to be designed, conducting careful research, and then designing the building sound, processing, and electroacoustic system of the hall, and combining the two perfectly, can an accurate "design" be given and the best sound effect be obtained.

Based on the above requirements, we carefully reviewed the civil engineering drawings and conducted a thorough analysis of the acoustics of all the halls. We considered the relevant characteristics of building acoustics and acoustics as a "whole" for comprehensive design, and used computer-aided design (the latest EASE 3.0 version software) for acoustic design of the sound field. In advance, a three-dimensional model identical to the physical building of the hall was established on the computer. And for the building data in the room:

Architectural form and shape; (Related to the generation of acoustic defects and the distribution of reflected sound)

Room capacity; (Determine room constant and reverberation time)

The sound absorption coefficient of materials such as indoor walls, ceilings, floors, and seats;

Number of seats and their arrangement;

Distribution of Near Reflection Sound

After a thorough understanding, fully consider the diffusion and superposition of direct sound and reverberation sound, as well as acoustic indicators such as acoustic ratio and reverberation radius. And based on this, design the sound field for the sound amplification system. Because only after a thorough and careful understanding of the sound field can accurate electroacoustic design indicators be provided to achieve the best sound quality effect.

Requirements of Building Acoustics for Sound Reinforcement Systems

Based on past engineering experience, the acoustic design of the hall should include both "building sound" and "sound reinforcement" aspects. The former mainly controls reverberation time and sound quality defects; The latter requires ensuring sufficient sound level, uniform sound field distribution, and acoustic effects required for different usage functions in the hall. The two complement each other, and only by closely cooperating can good artistic and sound quality effects be achieved with the lowest investment.

Determination of reverberation time

Generally speaking, a short reverberation time can improve the clarity of language, while a long reverberation time can enhance the richness of music. We believe that the main purpose of this system should be to ensure language clarity, while also taking into account the requirements for music and surround film use. So before designing a sound reinforcement system, it is necessary to base it on a specific reverberation time. Only under specific reverberation time conditions can the design of the "acoustic characteristic indicators" of the hall be scientific and accurate, which is also the focus of our design.

Following the above principles, we established actual three-dimensional models of all halls on the computer and conducted simulation calculations.

2、 Specific design steps and results

Computer aided design (CAD) for acoustic characteristics of sound reinforcement systems is an ideal method for engineering design using modern technology, with high accuracy, efficiency, and more importantly, the engineering design results can be known without waiting for installation and commissioning. It is an application computer that uses practical professional software to perform computer-aided design (CAD) on the acoustic characteristics of sound reinforcement systems in halls, sports venues, and conference rooms.

The acoustic characteristic computer design system has very good credibility and accuracy. When the input acoustic data of the hall is accurate enough, the calculated data can be compared with the final measured results of electroacoustic measurement, and the error can be controlled within 1 decibel. For engineering design and installation debugging, this is already sufficient, and it also has good guidance for design, installation, and debugging, which has been well verified in previous engineering designs. Using an acoustic CAD computer system to design the acoustic characteristics of the system hall means that there is no need to wait until the system installation, debugging, and measurement are completed to know its design and installation debugging results. In other words, based on the sound system and design calculation results provided in this design plan, the expected acoustic characteristics of the sound reinforcement system in the conference room have been clearly seen.

Based on the above design basis, design ideas, and design methods, we have carried out a careful system design.

3、 System Design

Designed with BEENZIONE audio processor and speaker core, the pickup part adopts the famous Chinese Voice capacitor pickup head's pickup frequency range and super heart pointing, which can very clearly capture the speaker's voice. In terms of sound reinforcement, BEENZIONE's Afa series speakers are used to evenly distribute the boost stages throughout the conference room. Whether it's meetings, speeches, or academic presentations, the entire audio and video system can ensure perfect results.

The wedding hall uses a typical array system, which includes speaker arrays to restore the entire music spectrum without affecting the line of sight. Due to the fact that the speaker can be lifted or positioned with a professional speaker bracket, the sound positioning is more realistic.

The entire system strives to achieve complete configuration and functionality on the basis of economy and practicality; While demonstrating the advanced and reasonable nature of the system, ensure the reliability and stability of its operation, and achieve a level four or higher image anti-interference capability; And provide a simple, convenient, and user-friendly interface for management and users. The design of the security system is based on the principles of advanced, reliable, practical, easy to operate, and easy to maintain, making the entire system fully functional, reasonably matched, and highly expandable.