LYN ACOUSTICS
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CENTRAL
AUDITORIUM

SCULPTING SOUND THROUGH PARAMETRIC ARCHITECTURE

Integrating flawless speech intelligibility into a sweeping, parametric vision.

LocationChengdu, China
Capacity850 Tiered Seats
Core TechParametric Fabrication
AcousticsNC-15 / STI 0.81

Neutralizing severe acoustic focal points caused by concave wooden structures without compromising the architect's organic vision.

01. THE ENGINEERING CHALLENGE

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."
Central Auditorium interior showing the sweeping parametric timber envelope and tiered seating
FIG. 01 - PARAMETRIC AUDITORIUM ENVELOPE

Sweeping timber geometry and continuous luminous reveals define the room's acoustic and architectural identity.

02. CUSTOM FABRICATION

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 AVL NETWORK

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.

Central Auditorium view toward the stage and LED wall with integrated architectural acoustics
FIG. 02 - STEALTH AVL INTEGRATION

View toward the stage showing the integrated LED wall, concealed audio strategy, and continuous timber waveguide language.

04. STAGE INFRASTRUCTURE

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. COMMISSIONING DATA

05. Measured Parameters & Final Commissioning

Acoustic & Intelligibility Metrics

METRICTARGET SPECMEASURED RESULTSTATUS
Speech Transmission Index (STI)> 0.750.81 (Exceptional)EXCEEDS
Reverberation Time (RT60) @ 1kHz1.0s (+/-0.1s)0.98sPASS
Background Noise (NC)NC-15NC-14PASS
Spatial SPL Uniformity+/- 2.5 dB+/- 1.8 dBEXCEEDS

Network & Mechanical Metrics

SYSTEMPARAMETERVERIFIED PERFORMANCE
Video LatencySource to LED Wall< 0.1ms (SDVoE Standard)
Audio LatencyStage to FoH1.0 ms (via Dante)
Stage Automation SafetyControl ArchitectureSIL3 Certified