Acoustic Design Project of Hunan Changsha Concert Hall

The Changsha Concert Hall is the soul building of the Riverside Cultural Park. It was built according to the standard of a pure concert hall. The total construction area is about 28,000 square meters, and the building height is about 28 meters. It mainly includes: more than 1,400 symphony halls and nearly 500 multifunctional halls. And nearly 300 indoor concert halls. The concert hall is fully functional, integrating music performances, catering and leisure, art training, VIP reception and other functions. It can accommodate about 3,000 music lovers to appreciate art and participate in art training at the same time.

In accordance with the goal positioning of "a hall for appreciation of classic art, a stage for mass art, an education base for elegant art, and a platform for cultural and art exchanges", it strives to become a top, domestic, and internationally renowned concert hall in Hunan Province. Tiange Acoustics provides technical support and solutions for the architectural acoustic decoration design of the concert hall.

GOODSOUND Acoustics, a service provider of overall acoustic environment solutions, provides professional acoustic technical guidance for the actual construction of the Changsha Concert Hall:
In order to achieve the ideal sound quality design goals, it is necessary to adjust the horizontal profile of the symphony hall and the volume of each seat, and properly fine-tune the side walls of the building and the indoor plan.
GOODSOUND Acoustics, a service provider of overall acoustic environment solutions, provides professional acoustic technical guidance for the actual construction of the Changsha Concert Hall: In order to achieve the ideal sound quality design goals, it is necessary to adjust the horizontal profile of the symphony hall and the volume of each seat, and properly fine-tune the side walls of the building and the indoor plan.Try to meet the acoustic early side reflections of various positions in the audience area; Adjust the ceiling of the building and indoor plan, try to meet the acoustic requirements of the top surface of the audience area and the volume of each seat in the hall; Break the concave arc structure on the building body to prevent the sound from focusing; Combine the style of interior decoration as much as possible to diffuse and micro-diffuse each sound reflection surface to make the sound diffuse and the sound field uniform.

On the other hand, the selection, placement and quantity of surface acoustic materials in the symphony hall are related to the distribution and diffusion of the sound field in the hall, and more related to the control of the reverberation time and frequency characteristics in the hall. Therefore, GOODSOUND Acoustics also put forward corresponding design requirements for the selection of acoustic materials on the inner surface of the auditorium:

1. To avoid excessive low-frequency sound absorption by the floor resonance, the floor of the auditorium should use solid wood flooring and fill the gap between the keels.

2. Acoustical requirements for the ceiling to have strong reflection, it's also required to reduce the absorption of low frequency at the same time, to ensure a certain degree of rigidity and fire protection requirements. Therefore, GOODSOUND Acoustics recommends the use of reinforced fiber prefabricated gypsum board ceilings with high surface density.

3. For the floor and pool seats, the walls in the symphony hall are very important early sound reflection surfaces. These walls can provide more early reflection sound energy to the auditorium and improve the listening space at the audience's position. Therefore, GOODSOUND Acoustics pointed out that the acoustics of the wall should be as thick and hard as possible, so that it can play the role of sound reflection, make full use of sound energy and reduce sound absorption as much as possible.
4. The auditorium is the most important sound absorption surface in the symphony hall. The sound absorption of mid-to-high frequency accounts for about 80% of the total sound absorption of the entire symphony hall, which has a great influence on the actual reverberation time in the hall. Therefore, choosing the form and materials of the seat and controlling its acoustic performance have become an important part of the sound quality design of the symphony hall. For the symphony hall, it is required that the sound absorption performance of the seats in the empty and seated conditions are as close as possible, so that there is no major change in the sound field sound quality of the auditorium under the empty and full conditions; No noise is generated when flipping, especially collision noise is not allowed; wooden backrests and wooden armrests should be used for the seat, wooden frames should be reserved for the backrest, and the backrest cushion should not be too thick; the bottom surface of the seat cushion should be treated with sound absorption, GOODSOUND Acoustics It is recommended to partially use perforated wood surface.

With the professional technical support of GOODSOUND Acoustics, the acoustics of the Changsha Concert Hall exceeded expectations. So far, many perfect music performances and activities have been successfully held! Music knows no borders, and there is no end to perfection. GOODSOUND Acoustics is committed to creating perfect acoustic effects for more different places with unremitting efforts and pursuit!