An independent third party (a client who previously built a similar test chamber for VinSmart) has assessed that the DASM Anechoic Room is the most advanced in Vietnam, with noise levels measured at below 8dB during the day and around 2dB at night.
Designed and constructed by a team of leading scientists and acoustic experts, using only top-quality materials, the most advanced sound absorption room has been praised for its superior quality. With noise levels of under 8dB in the daytime and as low as 2dB at night, it has earned the nickname “The Quietest Room in Vietnam.”
Anechoic Room – The Pride of DASM
In most product quality assessments involving acoustic analysis, an environment with minimal background noise—typically around 10-20 dBA or lower—is essential. This ensures that the sound emitted by the object under test is not contaminated by ambient noise, allowing for highly accurate measurements.
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This acoustically neutral testing environment is achieved using an Anechoic Chamber—a specialized room designed to absorb sound reflections and external noise interference. Acting as a dedicated space for acoustic material and environmental research, the sound absorption room is crucial for evaluating the volume and sound quality of various products. It creates a controlled free-field acoustic environment, where sound waves travel in only one direction with no reflections.
To achieve this, the walls of an Anechoic Room have a unique structure that serves two critical functions:
🔹 Blocking low-frequency sound waves from external sources.
🔹 Fully absorbing energy from internal sound waves at frequencies of 100Hz and above.
Moreover, with background noise levels between 10-20 dBA, the Anechoic Chamber becomes an indispensable tool for precise acoustic testing.
Advanced Materials & Construction
The Most Advanced Sound Absorption Room features a sealed structure, with walls fitted with Pyramid-shaped acoustic wedges made from compressed PE foam or Melamine Foam. These materials can be easily shaped and designed to optimize sound absorption based on the room’s layout and the direction of sound waves. Similar materials are widely used in Full Anechoic Chambers worldwide, including those at leading institutions like B&K, Siemens, Boeing, and Airbus.
The acoustic properties of these materials are determined through experimental analysis and advanced modeling techniques, including JCA, PTMM, FEM models, which evaluate factors such as porosity, flow resistance, viscous length, and thermal characteristics.
Most acoustic testing facilities maintain a background noise level of 10-20 dBA, which is ideal for evaluating sound performance in products like speakers, machinery, and household appliances. Since human ears can only detect sounds above 0 dBA, spending time in an ultra-quiet room can cause disorientation and psychological effects.
The DASM’s Most Advanced Sound Absorption Room was meticulously designed and built by a team of top acoustic scientists at Institute Of Development And Application For Sound Materials, using premium-grade materials supplied by Remak. This room represents Institute Of Development And Application For Sound Materials commitment to excellence in acoustic research, having been recognized by an independent third party (a company that previously built a similar test chamber for VinSmart) as the most technologically advanced anechoic room in Vietnam.
With noise levels of under 8dB during the day and approximately 2dB at night, the quiet room absorbs up to 99% of sound, eliminating reverberations and ensuring the most accurate acoustic measurements.
Applications of the Anechoic Room
Anechoic chambers are used for highly precise noise and sound analysis across various industries, ensuring scientific reliability in product assessments.
For example, the Most Advanced Sound Absorption Room in Building 87 at Microsoft’s headquarters in Redmond, Washington, USA, holds the Guinness World Record for the quietest place on Earth, with background noise levels measured at -20.35 dBA—20 decibels below the human hearing threshold.
Microsoft utilizes its Anechoic Room to test the audio performance of microphones, receivers, headphones, and speakers, as well as the operational noise of computing devices such as keyboards, mice, cooling fans, and display backlighting modules.
Products benefiting from this facility include the Surface tablet, Xbox gaming consoles, and HoloLens VR headsets. The room also plays a crucial role in the development of software that relies on high-quality sound, such as Skype and Cortana.
Similarly, the Orfield Labs Anechoic Chamber in Minneapolis, Minnesota, USA, is the only independently certified testing facility in the United States. It serves a wide range of industries, including medical devices, consumer electronics, home appliances, and automotive components.
Companies such as Harley-Davidson have utilized Orfield Labs to design quieter motorcycles while maintaining their signature engine sound. LED displays are also tested to ensure that their noise levels remain within acceptable limits. NASA even uses a similar chamber to prepare astronauts for space conditions, as outer space functions like a massive anechoic chamber.
DASM Most Advanced Sound Absorption Room – The Leading Acoustic Testing Facility in Vietnam
In Vietnam, businesses and researchers requiring high-precision acoustic testing for products such as:
✔️ Household appliances (washing machines, air conditioners, refrigerators)
✔️ Motors, engines, and mechanical components
✔️ Automotive and motorcycle engines
✔️ Industrial machinery
… can now access the Most Advanced Sound Absorption Room – the quietest room in Vietnam for scientific, independent, and transparent acoustic testing and certification at competitive pricing.
📞 Contact Institute Of Development And Application For Sound Materials’ Hotline for inquiries, consultations, and testing services.
