acoustic science glossary
STC (Sound Transmission Class)
Sound Transmission Class (STC) is a single-integer rating of how well a building partition attenuates airborne sound. In the context of office pods, it is the most critical metric for assessing privacy and focus. The rating is derived from transmission loss values tested across sixteen standard frequencies from 125 Hz to 4000 Hz. A higher STC rating indicates better soundproofing capabilities. For instance, a standard interior wall might have an STC of 33, while a high-performance acoustic booth requires significantly more. MobileX achieves a superior STC 35dB+ through a multi-layered approach that addresses both material density and structural integrity. Our pods utilize aerospace-grade aluminum frames combined with high-density acoustic panels and specialized seals. This ensures that even loud conversations are reduced to an inaudible murmur for those outside. By meticulously engineering the joints and using 12mm laminated acoustic glass with PVB interlayers, we eliminate sound leakage points that typically plague lower-quality pods. Achieving STC 35dB+ means a reduction of approximately 35 decibels, which effectively masks speech and environmental noise, creating a sanctuary of concentration in bustling open-plan offices. This benchmark is not just a number; it represents our commitment to scientific acoustic excellence and user well-being.
NRC (Noise Reduction Coefficient)
While STC measures sound blocking, NRC focuses on sound absorption within the pod. Our interior surfaces are lined with 0.85+ high-density felt, ensuring that echoes are eliminated and voices remain crisp and clear during calls.
Decibel (dB)
The decibel is a logarithmic unit used to measure sound intensity. Because it is logarithmic, a 10dB reduction actually represents a 90% decrease in sound energy. MobileX pods provide a transformative reduction impact, turning a noisy 75dB office into a 40dB quiet zone.
Rw + Ctr
International standards like Rw (Weighted Sound Reduction Index) and Ctr (Spectrum Adaptation Term) allow us to optimize for low-frequency insulation. This is crucial for blocking the hum of HVAC systems and distant traffic.
RT60 (Reverberation Time)
RT60 measures how long it takes for sound to decay by 60dB. For optimal call clarity and “dry” acoustics, 0.2s-0.4s is the gold standard. Our pods are engineered to hit this sweet spot, preventing the “barrel effect” common in smaller spaces.
Decoupled Structural Engineering
To prevent vibration transmission, we employ mechanical isolation techniques. The aerospace-grade aluminum frame is decoupled from the floor and glass, ensuring that structure-borne noise does not enter or leave the booth.
VOC-free & ESG Standards
Acoustic performance shouldn’t come at the cost of health. Our material science focuses on zero-formaldehyde, VOC-free components, meeting the highest ESG standards for indoor air quality.
Laminated Acoustic Glass
We use 12mm laminated acoustic glass featuring specialized PVB (Polyvinyl Butyral) interlayers. This sandwich construction dampens vibrations and provides superior sound insulation compared to standard tempered glass.
nick he2026-05-09T06:17:19+00:00