01
Choose the right acoustic equipment
Compare static rooms, anechoic chambers, soundproof boxes, and inline rooms before you ask for a quote.
Insights
News & Insights
Acoustics explainers, industry policy, and trend analysis
Buying path
Read by the decision you need to make
Use the News library as a sourcing tool: compare equipment, write measurable acceptance terms, or check whether a China supplier can support a custom acoustic project.
02
Write a measurable acceptance clause
Turn dBA, NC, Rw, method, operating condition and remedy into contract language your team can verify.
03
Shortlist a China supplier
Check manufacturing proof, comparable projects, test reports and overseas handoff before you spend time on drawings.
Product visualEngineering guide
Quiet Ventilation: How an Acoustic Test Room Breathes Without Breaking the dBA Target
A sealed quiet room still needs fresh air and cooling — for the equipment inside and the people working in it. Ventilation is one of the easiest ways to ruin a low background-noise target, and one of the harder things to get right. Here is how a quiet room breathes.
Product visual: Static-room product structure visual showing where ventilation and silencing modules sit within a low-noise enclosure.
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Technical diagramEngineering guide
Floating Floors and Vibration Isolation: Why a Quiet Test Room Needs More Than Thick Walls
A low background-noise target is rarely lost through the walls — it is lost through the floor. Structure-borne vibration is what separates a room that looks soundproof from one that measures quiet. Here is how floating floors and vibration isolation actually work.
Technical diagram: Floating-floor isolation diagram used to explain how a static room is mechanically decoupled from the building slab by resilient isolators.
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Project evidenceAcceptance spec
Measured Acceptance: How to Write “Meets Target” Into the Contract
The single clause that prevents most acoustic-project disputes is a measured acceptance criterion. Here is what to put in writing — the value, the method, the conditions and the remedy — so a custom test room is accepted on a number, not an argument.
Project evidence: On-site acceptance photo from an anonymized overseas project showing a measured low-noise reading inside the completed room.
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Factory photoSourcing guide
Choosing an Acoustic Test-Room Supplier in China: A Buyer’s Checklist
Sourcing a custom acoustic test room from China can deliver measurable performance at a competitive total cost — if you vet the supplier correctly. Eight checks separate a real manufacturer from a reseller and protect a project that is expensive to redo.
Factory photo: Factory quality-control photo showing metrology equipment and inspection workflow used to verify custom parts.
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Product visualEngineering guide
How to Specify an Inline Static Room for a Live Production Line
An inline static room must hit a background-noise target while products keep moving through it on a conveyor. Here are the seven things to define before you ask for a quote — from takt time to pass-through openings — so the room fits your line, not the other way around.
Product visual: Inline static-room product visual showing conveyor pass-throughs, interior work positions and service access before the room is adapted to a live production line.
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Test reportAcceptance spec
dBA, NC or Rw? Which Acoustic Number Belongs in Your Test-Room Contract
Background noise (dBA), Noise Criterion (NC) and sound reduction (Rw) measure different things and are verified differently. Here is what each means, when to specify it, and why your acceptance clause should name a measured value.
Test report: Redacted CNAS calibration certificate thumbnail used as evidence context for measurable contract metrics such as background noise, NC and Rw.
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Product visualEquipment selection
How to Select Acoustic Test Equipment for Electronics Production Lines: A Six-Step Procurement Decision Guide
From the device under test, target background noise, and shop-floor environment to line takt time and budget, six steps to choose the right static room, anechoic chamber, or soundproof enclosure.
Product visual: Static-room product visual used to compare common acoustic test-equipment choices.
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Product visualEquipment selection
Anechoic Chamber, Static Room, or Soundproof Box? An Engineering Comparison of Three Types of Acoustic Equipment
One comparison to understand the principles, metrics, and use cases of the anechoic chamber, static room, and soundproof box, and avoid selection pitfalls.
Product visual: Anechoic-room product visual used to explain chamber geometry, absorption and test use cases.
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Product visualEngineering guide
Inline Static Rooms: The Engineering Essentials of Building 'Quiet' Into the Production Line
In the era of full inspection, how do you let products travel along the line to complete noise testing? An analysis of the opening attenuation, takt-time matching, and vibration-isolation design of inline static rooms.
Product visual: Inline static-room visual showing the pass-through structure used for full-inspection production lines.
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Technical diagramMarket & policy
China's static-room industry: current state and trends
A 2025 market of roughly RMB 18 billion — industrial-led, with commercial and consumer use accelerating, as three trends take shape: intelligence, segmentation, and standardization.
Technical diagram: Market-trend matrix used to show industrial demand drivers, sourcing signals and acceptance evidence for acoustic-room projects.
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Product visualAcoustics basics
Acoustics fundamentals explained
Decibels, sound insulation, sound absorption, vibration damping and isolation, reverberation time — five key concepts that reveal the underlying logic of silent engineering.
Product visual: Soundproof-box product visual used to explain basic isolation and absorption principles.
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Technical diagramMarket & policy
Overview of China's noise-pollution-control policy
From the Noise Pollution Prevention and Control Law to the 14th Five-Year Action Plan — key control points across industry, construction, transportation, and community life.
Technical diagram: Noise-compliance workflow visual used to connect policy categories with monitoring, records, corrective action and measurable acceptance evidence.
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Technical diagramMarket & policy
An introduction to national noise-pollution classification
A clear guide to the five-class acoustic-environment functional-zone standards under GB 3096-2008, noise-pollution grading, and emission limits for special scenarios.
Technical diagram: Noise-level scale visual used to compare acoustic-environment classes, daytime and nighttime limits, and practical severity bands before converting a site condition into an RFQ target.
Read moreFAQ
FAQ
What's the difference between a soundproof room and a static room?
A soundproof room is built to block external noise; a static room layers absorption, silencing, and vibration isolation on top of insulation to pursue an extremely low noise floor.
Soundproof room
Its core function is blocking external noise, primarily through passive insulation focused on "sound isolation." Sound insulation is typically 30–45 dB, with a simple structure (single/double-layer panels plus standard absorptive foam), suitable for office partitions, livestreaming studios, music rooms, and general workshop isolation.
Static room
On top of insulation, it layers internal absorption, silencing, vibration isolation, and ventilation noise control — blocking external noise while eliminating internal echoes and residual low frequencies to achieve an ultra-low noise floor. Sound insulation exceeds 50 dB through multi-layer composite damping, floating vibration isolation, sealing, and silenced fresh-air supply, fitting precision inspection, acoustic testing, recording, audiometry, and high-end sleep pods.
How many decibels make a static room acceptable?
A standard static room passes at ≤40 dB(A), industrial inspection at ≤30 dB(A), and professional precision work at ≤20 dB(A).
Background noise (A-weighted)
- General office / commercial silent cabins: ≤40 dB(A) acceptable, ≤35 excellent
- Industrial product noise inspection: ≤30 dB(A) acceptable, ≤25 for precision
- Medical audiometry / recording / laboratory: ≤20 dB(A) acceptable, ≤15 top-tier
- Anechoic chamber (ultimate quiet): ≤10–15 dB(A)
Sound insulation
- Weighted sound reduction index Rw: ≥45 dB acceptable, ≥50–55 professional-grade
- Insertion loss IL (measured on site): ≥35–40 dB
How do you guarantee the dB target will be met?
Acceptance is written as an on-site measured dBA with a Class-1 sound level meter (IEC 61672), under agreed conditions — so you accept the room on a verified result, not a promise.
Before the project, we define the target in your contract as a measured value — for example in-room ≤30 dBA with HVAC running and the line in operation. On completion, the room is measured on site with a Class-1 meter (IEC 61672). If the number is not met, it is not accepted. Delivered projects have measured as low as 9.7–18.6 dBA in real customer plants.
Can you export and install overseas?
Yes. Rooms are built in Shanghai, exported flat-pack, and assembled and commissioned on site — including overseas plants such as in Vietnam.
Acoustic rooms are manufactured at our Shanghai factory, shipped as flat-pack panels, and assembled, sealed and commissioned at the destination. Jinxiu has completed anonymized overseas installations in Southeast Asia and currently exports to Thailand, Vietnam, India, the United States and Mexico. On-site measured acceptance applies to overseas projects too.