Large educational multi-function halls typically face prominent mid-low frequency acoustic problems, such as long reverberation, muddy sound and poor speech intelligibility. Ordinary porous materials cannot effectively improve low-frequency noise, resulting in poor teaching and event experience.
Grooved and perforated resonant acoustic panels were used as the main wall acoustic solution. Based on Helmholtz resonance principle, the panels target low-frequency vibration and indoor standing waves that are difficult to handle by conventional materials. Cooperating with rear cavity and acoustic insulation materials, the system realizes full-frequency sound absorption and optimizes overall sound field uniformity.
With neat wood veneer appearance, the panels fit the simple and elegant style of educational buildings perfectly. After reconstruction, the hall’s reverberation time is optimized to the standard range for speech and performance. Sound clarity is greatly improved, ensuring stable and clear sound transmission for lectures, performances and daily assemblies.
