This project was the acoustic reconstruction of a small theater in a district cultural center. The original venue had simple decoration and serious low-frequency reverberation problems. When hosting drama performances, speeches and small concerts, there were often problems such as muddy bass, unclear speech and obvious standing waves, which could not meet the professional performance requirements.
The design team adopted a combined scheme of grooved acoustic panels and perforated acoustic panels for wall treatment. Based on the Helmholtz resonance principle, the two panels are precisely matched according to the space size and functional orientation, targeting the mid-low frequency noise of 250Hz–1000Hz that is difficult to solve by traditional porous materials. With the rear air cavity and mineral wool backing material, the overall NRC reaches 0.90, realizing full-band balanced sound absorption and effectively optimizing the sound field uniformity of the whole venue.
The wood veneer panels have a simple and elegant appearance, which fits the cultural and atmospheric positioning of the cultural center. After the transformation, the acoustic test results show that the reverberation time reaches the professional standard of small theaters, the low-frequency sound is clean and powerful, the language clarity is greatly improved, and the listening effect of each seat is balanced. It can well meet the needs of drama, speech, music and other diversified performances, and become a model for the acoustic transformation of grassroots cultural venues.
