ACOUSTIC ROOM ANALYSIS

At Sound Krafted, we specialize in providing detailed acoustic analysis for projects requiring effective acoustic treatment. Our team carefully evaluates your space, identifies specific challenges, and develops customized solutions designed to enhance sound quality and reduce noise. Trust us to create an acoustic environment tailored to your unique needs.

ACOUSTIC SOLUTION ONLY REQUIRES 6 STEPS

01

Survey The Scene

Survey the scene or provide the basic building drawings, photos, and videos of the scene.

The Sound Krafted Survey Team provides a professional acoustic survey for projects that require soundproofing and acoustic treatments. Experienced acoustic specialists perform careful on-site assessments of your retrofit space acoustics. We offer customized solutions and recommendations to enhance sound quality and mitigate noise based on room configuration, sources of noise, and sound interactions. Our team specializes in creating custom solutions that best suit the requirements of where you work, rest or create, so you can trust acoustic excellence at all times.

Sound Krafted Survey Team
Soundproofing Analysis
Sound Krafted Auditorium Project
02

Design The Project

Design the Project Based on Function, Visual Aesthetics Requirement.

Project Description

Acoustic Design of Lecture Classroom

The auditorium spans an area of 707.5m², with the highest floor height reaching 11.09m and the lowest at 6.85m. The width measures 25.5m, and the length is 30.67m. The stage area covers 406.4m², with a floor height of 10.29m. The main stage has a width of 17.8m and a depth of 12.8m.

The seating arrangement includes 726 pool seats across 26 rows with full steps. The total rise from front to rear is 4.243m, with an average rise of 0.17m per row.

A multifunctional hall equipped with a sound reinforcement system as the primary audio source.

1.GB/T 50356-2005 《 Technical specifications for architectural acoustics of theaters, cinemas and multi-purpose halls” 》
2.JGJ57-2016 《 Theater architectural design code 》
3.GB/T 50076-2013 《 Indoor reverberation time measurement specification 》
4.GB/T 15508-1995 《 Speech intelligibility test method 》
5.GB/T 50121-2005 《 Building sound insulation evaluation standard 》
6.《Concert Hall and Opera House 》(by Barrenac).Odeon 14.03 Building sound simulation software.

03

Design for Decoration

Designing for Aesthetics, Functionality, and Sound & Lighting.

Height of Proscenium

According to JGJ57-2016 《Theatre Architectural Design Code》, the height of the platform should meet the requirements.

A group of 6 linear array speakers are about 2000mm in length. Therefore, they need at least 2200 height space for hidden installation in the sound bridge. The height from the top to the bottom of the original ceiling beam will be less than 1m, which is not enough to set the ceiling shape reasonably.

According to JGJ57-2016 《Theatre Architectural Design Code》, the position of the surface light bridge should be such that the angle between the center point of the light exit of the lamp and the vertical line of the platform line and the platform is 45°~50°. Class A theaters should have at least two surface light bridges, and Class B theaters should have at least one surface light bridge. For small theaters with less than 800 seats, just install a light bridge.

The clear height of the horse track should not be less than 1.8m, but it will result in the ceiling height of only 1.34m. Under this height, the shape of the stacked ceiling cannot be arranged reasonably. In order to ensure the acoustic effect, part of the horse track space must be sacrificed.

The reflected sound evenly covers the seating area

Ceiling-reflected sound is important in creating a sense of space and enhancing sound intensity. It should be ensured that the reflected sound rays can evenly cover the seating area

The reflected sound should be beneficial for early reflection

Haas effect: When the time difference between the reflected sound and the direct sound is within 35ms, people cannot distinguish between the two sound sources and cannot feel the lagging sound; when the time difference is 35ms~50ms, the lagging sound in the direction of the direct sound can be felt; when the time difference is greater than 50ms, can clearly distinguish the lagging reflected sound and its direction, that is, the obvious echo. The reflected sound delay should be within 35ms and should not exceed 50ms.

Sound Krafted project
Sound Krafted Project
Soundproof Auditorium
04

3D Model Of Hall

Develop a mathematical model of the real-life hall.

Simulation method

The computer simulation of the sound field involves creating a mathematical model of the actual hall and simulating the propagation of sound waves within it based on the principles of geometric acoustics. ODEON 14.03 integrates both the sound image method and the sound ray method for accurate analysis.

The coordinate origin is defined at the intersection of the platform’s central axis and the front edge of the stage floor (elevation ±0.000). The positive Y-axis extends from the origin towards the auditorium, the positive X-axis points from the origin towards the auditorium’s sidewall, and the positive Z-axis extends upward from the origin to the top of the stage.

Arrange the layout as outlined in the table from the previous section.

To maintain accurate calculation results, the three-dimensional model simplifies certain aspects of the auditorium: the auditorium floor is elevated 0.8m above ground level with a scattering coefficient of 0.6; doors, windows, and walls are represented on the same plane; and curved surfaces are segmented into smaller flat planes. The final model consists of 696 faces.

05

Simulation of Data Analysis

Before Soundproofing

After Soundproofing

06

Submit Design Proposal

Auditorium Soundproofing
Auditorium Soundproofing

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