01. The Engineering Challenge: The Parametric Paradox
The defining feature of the Central Auditorium is its breathtaking organic architecture. Massive, sweeping curves of timber flow seamlessly from the stage proscenium, wrapping around the tiered seating to form a continuous visual envelope.
However, from an acoustic engineering perspective, concave surfaces are inherently dangerous. They act as parabolic reflectors, concentrating sound energy into distinct focal points. If left untreated, these beautiful curves would create intense "hot spots" of harsh, delayed reflections in specific seating areas, while leaving other zones acoustically dead.
"The challenge was not to fight the architecture, but to engineer the architecture itself to become the acoustic solution. Every curve had to perform a precise mathematical function."

Sweeping timber geometry and continuous luminous reveals define the room's acoustic and architectural identity.
02. Parametric Acoustic Waveguides & Custom Fabrication
To neutralize the focal points and control reverberation, standard flat acoustic panels were out of the question. TYN ACOUSTICS collaborated directly with the lead architects to transform the visual wooden slats into Parametric Acoustic Waveguides.
Precision Micro-Perforation & Diffusion
Relying on our Foshan manufacturing hub, we custom-engineered and fabricated over 4,500 unique, CNC-milled wooden profiles.
- The Absorption Zones: In areas prone to focusing sound, the wooden veneer was micro-perforated (0.5mm pores) and backed with tightly controlled, variable-density acoustic mineral wool.
- The Diffusion Zones: Along the upper lateral walls, the depth and angle of the wooden fins were mathematically randomized based on Quadratic Residue sequences.
All bespoke materials were manufactured using Class-A fire-retardant substrates, strictly adhering to the project's local fire safety codes.
03. Stealth Electroacoustics & The Unified AVL Network
The aesthetic purity of the room dictated that no unsightly speaker cabinets or massive line arrays could break the organic flow of the architecture.
Digitally Steerable Audio Architecture
We deployed a state-of-the-art Digitally Steerable Column Array System, completely concealed behind acoustically transparent, color-matched grilles integrated into the proscenium pillars. Utilizing advanced DSP algorithms, the audio beams are electronically steered downwards, preventing acoustic energy from striking the curved ceiling.
Uncompressed SDVoE & Dante Backbone
The massive 1.2mm pixel-pitch LED video wall is driven by an SDVoE architecture over a 100G fiber backbone, delivering mathematically lossless 4K60 4:4:4 video. All audio feeds are routed natively via Dante AoIP for microsecond synchronization.

View toward the stage showing the integrated LED wall, concealed audio strategy, and continuous timber waveguide language.
04. Stage Infrastructure & SIL3 Safety Mandates
Behind the massive LED screen and above the seamless wooden ceiling lies a robust, heavy-duty mechanical infrastructure.
- Concealed Rigging:Automated lighting battens and environmental projection rigs are housed within concealed ceiling pockets with motorized acoustic trapdoors.
- Whisper-Quiet SIL3 Automation:Because corporate executives operate directly beneath these suspended loads, the entire system operates under strict SIL3 protocols, utilizing absolute encoders and dual-braking mechanisms.
05. Measured Parameters & Final Commissioning
Acoustic & Intelligibility Metrics
| METRIC | TARGET SPEC | MEASURED RESULT | STATUS |
|---|---|---|---|
| Speech Transmission Index (STI) | > 0.75 | 0.81 (Exceptional) | EXCEEDS |
| Reverberation Time (RT60) @ 1kHz | 1.0s (+/-0.1s) | 0.98s | PASS |
| Background Noise (NC) | NC-15 | NC-14 | PASS |
| Spatial SPL Uniformity | +/- 2.5 dB | +/- 1.8 dB | EXCEEDS |
Network & Mechanical Metrics
| SYSTEM | PARAMETER | VERIFIED PERFORMANCE |
|---|---|---|
| Video Latency | Source to LED Wall | < 0.1ms (SDVoE Standard) |
| Audio Latency | Stage to FoH | 1.0 ms (via Dante) |
| Stage Automation Safety | Control Architecture | SIL3 Certified |