The industry's first TÜV-certified acoustic imaging camera with dual explosion protection (IECEx & ATEX), designed to redefine industrial inspection in hazardous environments. CRYSOUND proudly introduces the CRY8125 Ex Acoustic Imaging Camera — a cutting-edge solution specifically engineered for explosive atmospheres. With TÜV certification and full compliance with IECEx and ATEX Zone 2 standards, the CRY8125 Ex is purpose-built for reliable performance in hazardous environments. It combines advanced acoustic imaging capabilities such as gas leak detection, leak rate measurement, partial discharge detection and classification — setting a new benchmark for industrial inspection in explosive atmospheres. The Industry's First with TÜV-Certified Dual Explosion Protection The CRY8125 Ex Acoustic Imaging Camera is TÜV-certified for Zone 2 operation under both the IECEx and ATEX schemes, holding the following markings: II 3 G Ex ic IIC T5 Gc / II 3 D Ex ic IIIC T100°C Dc. It fully complies with IEC 60079-0 and IEC 60079-11 standards, ensuring safe and reliable use in potentially explosive gas and dust environments. This dual certification makes the CRY8125 ideal for hazardous-area applications in industries such as oil & gas, petrochemicals, chemicals, and gas-fired power generation, where explosion protection is mission-critical. Detect Any Type of Gas in Hazardous Zones The CRY8125 Ex Acoustic Imaging Camera is engineered to detect a wide variety of gases — including natural gas, hydrogen, carbon monoxide (CO), and volatile organic compounds — even in explosive environments such as refineries, chemical plants, and gas facilities. It provides: Real-time leak quantification Instant estimation of potential economic loss Actionable data for fast maintenance decisions Built to Withstand the Harshest ConditionsTo ensure reliable field performance, the CRY8125 undergoes 28 days of rigorous environmental testing, including: High-temperature aging at 90°C Low-temperature exposure at -25°C 90% humidity cycling Drop tests to verify durability After completing these extreme tests, the CRY8125 maintains its IP54 rating— ensuring consistent operation under demanding industrial conditions. High-Performance Intrinsically Safe Acoustic Imaging Camera The CRY8125 features 200 microphones, a 100 kHz bandwidth, and the fastest processor to detect smaller leaks and partial discharges at greater distances. It’s widely used in oil, natural gas, chemical, and gas power industries. Its 8-inch 2K display offers 2 million pixels, 6x digital zoom, and 600-nit brightness, ensuring clear imaging even in direct sunlight for detailed inspections. With an extended detection range, the CRY8125 improves test efficiency over 4× while keeping operators safe by minimizing exposure to toxic gases and covering a wider area. Comprehensive Hardware Configuration The CRY8125 is designed for versatility and future-proof expansion: Supports Bluetooth and Wi-Fi for seamless direct data transfer to local devices Accommodates up to 4 IEPE sensors (such as accelerometers and microphones) to enable advanced detection capabilities All-in-One Workflow: From Detection to Reporting The CRY8125 features an integrated workflow that streamlines the entire inspection process—from image capture and acoustic analysis to automatic report generation. This greatly enhances the efficiency of gas leak detection, allowing for quicker decision-making and safer, more reliable operations. Real-World Applications The CRY8125 enables safer and more efficient inspections across multiple industries. Oil Industry: Detect hazardous leaks such as H₂S, CH₄, and VOCs to eliminate safety risks Natural Gas: Monitor pipelines and storage tanks to detect leaks and prevent economic loss Chemical Industry: Non-contact detection of Cl₂, H₂, N₂, and steam ensures operational safety Gas Power Generation: Identify gas leaks in tanks and partial discharges in transformers quickly and effectively Case Studies: Field-Proven Performance A coal chemical enterprise successfully located a gas leak in an overhead pipeline that traditional methods failed to detect. At a natural gas storage station, the CRY8125 Ex identified 8 leak points in just one minute, dramatically improving inspection efficiency. Set a New Standard in Acoustic Imaging Safety With its dual explosion-proof certification, intelligent workflow, and proven durability, the CRY8125 Ex Acoustic Imaging Camera is an essential solution for modern industrial inspection in hazardous environments. Discover the future of acoustic inspection—safe, smart, and fast.To learn more or request a demo, please reach out to us at info@crysound.com.

What Is an Anechoic Chamber? An anechoic chamber is a room designed to completely absorb sound reflections. The walls, ceiling, and (in a full anechoic chamber) the floor are lined with wedge-shaped foam or fibreglass absorbers that prevent sound waves from bouncing back into the room. The result is a controlled acoustic environment that simulates free-field conditions — as if the sound source were suspended in open air with no surfaces nearby. This matters because most acoustic measurements — sound power, directivity, frequency response — require a known, reflection-free environment to produce repeatable, standards-compliant results. Without it, room reflections contaminate the measurement, making results dependent on the specific room rather than the product being tested. Full Anechoic vs Semi-Anechoic (Hemi-Anechoic) Chambers Feature Full Anechoic Semi-Anechoic (Hemi-Anechoic) Absorbing surfaces All 6 surfaces (walls, ceiling, floor) 5 surfaces (walls + ceiling); floor is reflective Floor Wire mesh or perforated metal grid suspended above absorbers Solid, load-bearing concrete or steel Acoustic condition Free-field (no reflections from any direction) Free-field over a reflecting plane Load capacity Limited — cannot support heavy equipment directly Can support vehicles, machinery, industrial equipment Primary standards ISO 3745 (precision sound power) ISO 3744 (engineering sound power), ISO 3745 Typical use Microphone calibration, loudspeaker characterisation, hearing research Automotive NVH, product noise testing, industrial machinery Cost Higher (floor treatment adds significant cost and complexity) Lower (no floor treatment needed) In practice, about 80% of industrial acoustic testing uses semi-anechoic chambers because most test objects — cars, appliances, compressors, power tools — are too heavy for a suspended wire-mesh floor. What Standards Require an Anechoic Chamber? ISO 3745 — Precision Sound Power Measurement The gold standard for sound power determination. Requires either a full anechoic or hemi-anechoic chamber qualified to meet strict free-field deviation limits across the frequency range of interest. The chamber must demonstrate that the inverse-square law holds to within ±1 dB at the measurement positions. Typical cut-off frequency: 80–200 Hz, depending on chamber size and wedge depth. Below this frequency, the chamber no longer behaves as a free field. ISO 3744 — Engineering Sound Power Measurement Less stringent than ISO 3745 but still requires a hemi-anechoic environment. Allows for environmental corrections when the room is not perfectly anechoic, making it practical for production-floor test cells that approximate (but do not perfectly achieve) free-field conditions. ISO 26101 — Qualification of Free-Field Environments Defines how to verify whether a room actually meets free-field requirements. This is the standard used to “qualify” an anechoic or hemi-anechoic chamber — confirming that its acoustic performance matches what is claimed. Other Standards ECMA-74: IT equipment noise measurement (uses ISO 3745 or ISO 3744 as the underlying acoustic method) ANSI S12.55 / S12.56: North American equivalents of ISO 3744/3745 ISO 11201–11205: Various sound pressure level determination methods, some requiring free-field conditions Key Design Considerations 1. Chamber Size and Usable Volume The physical dimensions determine the lowest usable frequency. A general rule: the chamber must be large enough that the distance between the sound source and each measurement microphone is at least one wavelength at the lowest frequency of interest. For a 100 Hz cut-off, the minimum source-to-microphone distance is approximately 3.4 metres, which means the chamber’s internal dimensions (excluding wedges) should be at least 7–8 metres per side for a hemi-anechoic chamber. 2. Wedge Absorbers The depth of the absorbing wedges determines the low-frequency performance. Deeper wedges absorb lower frequencies: Wedge Depth Approximate Low-Frequency Cut-off 200 mm ~500 Hz 500 mm ~200 Hz 1000 mm ~80–100 Hz Wedge materials include melamine foam (lightweight, fire-retardant) and fibreglass (better low-frequency absorption but heavier). 3. Background Noise An anechoic chamber must also be well-isolated from external noise. The ambient noise level inside the chamber (with no source operating) should be at least 6 dB — and preferably 15 dB — below the sound pressure level generated by the test object at the measurement positions. This typically requires a chamber built with multiple layers of massive construction (concrete, steel) and vibration-isolated mounting to prevent structure-borne noise transmission. 4. Vibration Isolation For NVH testing (especially automotive), the chamber floor may include vibration-isolated foundations or air-spring mounting systems to prevent road-simulator or dynamometer vibrations from coupling into the acoustic measurement environment. What If You Do Not Have an Anechoic Chamber? Not every organisation can invest $500K–$2M+ in a purpose-built anechoic facility. Several practical alternatives exist: Sound Intensity Method (ISO 9614) Sound intensity measurements are inherently less sensitive to room reflections because intensity is a vector quantity — it distinguishes between outgoing sound (from the source) and incoming sound (reflections from room surfaces). This allows sound power determination in ordinary rooms without anechoic treatment. Trade-off: Requires specialised intensity probes and more complex measurement procedures. Acoustic Test Boxes For small products (electronics, components, transducers), a desktop-sized acoustic test box provides a controlled, low-noise environment that approximates anechoic conditions within a defined frequency range. These are significantly cheaper than a full chamber and can be placed directly on a production line. CRYSOUND offers a comprehensive range of acoustic test chambers designed for different testing scenarios: CRY723 Pneumatic Acoustic Test Chamber — A compact, shell-type test box ideal for smartphones and wireless wearables. Combine two CRY723 units with a CRY6151B analyzer for complete audio, ENC, and ANC measurements. CRY725 Pneumatic Acoustic Test Chamber — Designed for larger wireless devices such as laptops and walkie-talkies. Compatible with comprehensive testers and vector network analyzers. CRY7865 Pneumatic Acoustic Test Chamber — A high-performance drawer-style chamber with both acoustic isolation and RF shielding, ideal for production line audio and noise measurements of wireless electronic devices. CRY7412 Ultra-Quiet Chamber — An ultra-quiet chamber for testing very quiet sounds in noisy environments. Features a unique double-shell design for superior noise isolation. All models support pneumatic operation for fast, repeatable DUT loading on production lines — a practical alternative when a full anechoic chamber is not justified by the application. Portable Acoustic Arrays Modern acoustic imaging cameras can identify and localise noise sources in situ — in the factory, on the production line, or in the field — without any anechoic treatment. While not a substitute for standards-compliant sound power measurements, acoustic imaging enables rapid noise source diagnosis that previously required dedicated chamber time. The CRY8500 Series SonoCam Pi Acoustic Camera, is a portable acoustic imaging camera that delivers real-time sound source visualisation — ideal for R&D engineers working on noise source identification in automotive NVH, industrial equipment, and consumer electronics. In-Situ Sound Power (ISO 3744 with Corrections) ISO 3744 allows environmental correction factors to account for room reflections. If the correction is small (typically less than 2 dB), the measurement can be performed in a reasonably quiet industrial space without a purpose-built chamber. The SonoDAQ Pro data acquisition system combined with OpenTest software supports automated sound power calculations with environmental corrections built in — enabling standards-compliant measurements without a dedicated anechoic chamber. Frequently Asked Questions How much does an anechoic chamber cost? Costs vary widely based on size, performance requirements, and cut-off frequency. A small hemi-anechoic room for component testing may start around $100K–$300K, while a large automotive-grade full anechoic chamber can exceed $2M. For smaller products, acoustic test boxes offer similar isolation at a fraction of the cost. What is the difference between an anechoic chamber and a soundproof room? A soundproof room blocks external noise from entering but does nothing about internal reflections. An anechoic chamber both blocks external noise and absorbs internal reflections, creating a free-field environment for precision measurement. Can I do acoustic testing without an anechoic chamber? Yes. Depending on your application, alternatives include acoustic test boxes for small products, sound intensity methods (ISO 9614), portable acoustic imaging cameras like the CRY8500 SonoCam Pi, and in-situ measurements with environmental corrections using systems like SonoDAQ Pro. What frequency range does an anechoic chamber cover? The usable frequency range depends on the wedge depth and chamber dimensions. Most chambers are effective from their cut-off frequency (typically 80–200 Hz) up to 20 kHz or beyond. Below the cut-off, the chamber no longer provides adequate absorption. How is an anechoic chamber qualified? Chamber qualification follows ISO 26101, which verifies that the inverse-square law (sound pressure decreasing by 6 dB per doubling of distance) holds within specified tolerances at the measurement positions. Conclusion Anechoic chambers remain the gold standard for precision acoustic measurement — but they are not the only option. Understanding what your application truly requires helps you choose the right solution, whether that is a full anechoic room, a compact acoustic test chamber, or an in-situ measurement approach. At CRYSOUND, we provide the full spectrum: from purpose-built anechoic chambers to portable acoustic test boxes and advanced measurement systems — so you can get accurate results regardless of your facility constraints. Contact us to discuss which solution fits your testing requirements.

When testing headphones and earphones, precision and reliability are key. CRY801B Headphone Test Fixture Sets deliver exactly what is needed, providing a versatile solution for wired and wireless headphones, insert earphones, and ANC headphones. Available in two configurations—CRY801B-S11 and CRY801B-S12—these test fixture sets cater to a wide range of applications, with the option to replace the simulation mouth, preamplifiers, and cables according to specific needs. CRY801B Test Fixture: The Core of the System The CRY801B Headphone Test Fixture is central to both the S11 and S12 configurations, playing a crucial role in simulating real-world usage scenarios while providing accurate testing conditions. - Durable and Robust: Made from anodized aluminum, the CRY801B is highly durable and resistant to wear. It ensures a long service life, even under the demands of frequent testing, making it ideal for both high-volume and long-term use. - Easy Installation and Use: The CRY801B Test Fixture has a modular design for easy setup and operation. Its size and shape precisely match the dimensions of various headphones and earphones, enabling accurate simulations of both comfort and sound reproduction. CRY801B-S11 Configuration The CRY801B-S11 configuration is ideal for testing a variety of audio products, including: - Headphones - Insert earphones - ANC headphones - Microphone testing This set includes: - CRY801B Headphone Test Fixture - CRY3711 Ear Simulator - CRY3502 Preamplifier - CRY3602 Mouth Simulator The CRY3711 Ear Simulator in the CRY801B-S11 configuration complies with the IEC60318-4 standard and includes a 1/2-inch pressure field microphone, simulating the insertion of earplugs into the ear canal or outer ear to measure headphone performance. The CRY3602 Mouth Simulator features a built-in 20W power amplifier, designed to replicate the acoustic environment of the human mouth for accurate sound field reproduction during testing. This configuration is perfect for manufacturers testing headphones, insert earphones, and ANC headphones. It offers comprehensive, reliable results. CRY801B-S12 Configuration The CRY801B-S12 configuration is widely applicable for testing microphones and various types of earphones, including:   - Headphones   - Insert earphones   - Microphone testing This set includes: - CRY801B Headphone Test Fixture - CRY3718 Ear Simulator - CRY3202 Microphone - CRY3502 Preamplifier - CRY3602 Mouth Simulator The CRY3718 is an ear simulator compliant with the IEC60318-1 standard, designed for audiology and related fields. It allows for electroacoustic measurements of headphones in a controlled acoustic environment. The CRY3602 Mouth Simulator also features a built-in 20W power amplifier, ensuring accurate sound field reproduction during testing. The CRY801B-S12 configuration is particularly useful for evaluating the acoustics of headphones and insert earphones, ensuring thorough assessments of sound clarity, noise isolation, and comfort. The CRY801B Headphone Test Fixture Sets—whether the S11 or S12—offer unmatched versatility, precision, and ease of use for testing a wide range of audio products. From wired and wireless headphones to ANC earphones, these sets deliver consistent, reliable results. By combining the advanced features of the CRY801B Test Fixture with specialized components in the S11 and S12 configurations, you can achieve accurate, real-world testing conditions crucial for developing high-quality audio devices. Whether you are an audio manufacturer, researcher, or quality control professional, the CRY801B Test Fixture Sets ensure that your products meet the highest standards of sound performance and user experience. For more information, please contact us at info@crysound.com.

CRYSOUND is proud to announce the release of our second-generation innovative Acoustic Imaging Camera Reporting Software. This next-level software is designed to elevate efficiency and accuracy in inspection processes, bringing new and improved features tailored to meet the needs of professionals across various industries. With a comprehensive upgrade, the new version offers enhanced functionality, refined performance, and advanced capabilities, ensuring a more seamless and precise inspection experience than ever before. Whether you're conducting routine checks or handling complex diagnostics, this fully upgraded software will redefine your workflow. Seamless Data Import The CRYSOUND second-generation reporting software simplifies the data import process. By ensuring the device and computer are connected to the same network, users can effortlessly import inspection data. This eliminates the need for complex on-site wiring and enhances workflow efficiency. Connect your device to a computer via WiFi, select and download data in real time, and start analysis immediately. Comprehensive Multi-Scenario Reporting The software supports a wide range of inspection scenarios, making it an essential tool for various applications. It can automatically identify testing scenes, such as electrical, gas, and mechanical inspections, and intelligently match the appropriate report templates based on the specific scenario. Partial Discharge Analysis: Identify the location and type of discharges from power equipment. Gas Leakage Analysis: Estimate economic losses caused by gas leaks based on the selected gas type, including air, oxygen, methane, and other gases. Mechanical Noise Analysis: Pinpoint abnormal noise sources from mechanical equipment. Thermal Imaging Analysis: Analyse infrared thermal images to identify temperature variations and abnormalities. Automatically adapting to each scenario, the software generates detailed reports that include essential information such as equipment name, ID number, severity level, repair status, and maintenance recommendations. This comprehensive approach ensures that maintenance teams have all the information they need to take action effectively. Advanced Acoustic Image Analysis Achieve greater accuracy with secondary analysis capabilities. While there may be missed fault points during field testing, adjustments can be made post-inspection to refine results: Modify imaging thresholds and dynamic ranges to minimize interference from ambient noise. Adjust imaging points to ensure no critical areas are missed during acoustic analysis. These tools enable users to create more precise and reliable reports, empowering engineers to make data-driven decisions. Economic Loss Estimation for Gas Leaks Gas leaks can result in significant financial losses. With the CRYSOUND second-generation reporting software, users can calculate these losses based on the market value of the gas type in question. Supporting the selection of air, oxygen, methane and other gases, users can fill in the corresponding gas value based on the market price of the gas type to calculate a more accurate economic loss. Enhanced Thermal Imaging Analysis The software does more than just display thermal images—it identifies the highest and lowest temperatures within the image. Users can set specific points or areas for temperature measurement, and the software can automatically calculate temperature rise. These features enable engineers to quickly diagnose problems and create practical troubleshooting reports. Flexible Report Export Options The software offers both PDF and Word export formats, catering to diverse user needs. PDF Format: Ideal for final reports that require no further modification. Word Format: Perfect for users who wish to edit or add additional information before finalizing their reports. The CRYSOUND second-generation Acoustic Imaging Camera Reporting Software is a transformative solution designed to streamline inspection workflows, improve reporting accuracy, and empower professionals with actionable insights. Whether you’re diagnosing power equipment, analyzing gas leaks, or evaluating mechanical performance, this software delivers unmatched flexibility and functionality. Experience the future of inspection reporting with CRYSOUND’s latest second-generation innovation. Contact us at info@crysound.com or submit the 'Get in touch' form on the website today to learn more or request a demo.

In the field of acoustics, where precision and reliability converge to create impeccable sound experiences, the CRY3700 series of ear simulators and couplers stands out as a hallmark of technological advancement. Designed to meticulously mimic the complex acoustic structure of the human ear, these devices cater to a wide range of applications, from research and development to quality control across various audio-related industries. Advanced Simulation Capabilities The CRY3700 series includes two types of acoustic simulators: ear simulators and couplers. Both configurations are meticulously designed to precisely replicate the complex acoustic structure of the human ear. This enables them to provide highly accurate acoustic measurements, crucial for developing and testing audio devices that must perform reliably in real-world conditions. Whether used for designing high-fidelity headphones or assessing hearing aids, the CRY3700 series ensures detailed sound analysis and verification, making it a cornerstone for innovation in acoustic technology. Low-Noise and Wide Frequency Range At the core of the CRY3700 series' capabilities is its exceptional low noise performance, which is critical when testing sensitive audio devices. This feature ensures that measurements are not only accurate but also repeatable, providing a reliable baseline for assessing product audio quality. With their broad frequency range, these simulators well-equipped to meet diverse customer requirements. Versatility Across Specifications Recognizing the varied needs of the customers, the CRY3700 series offers multiple specifications to address different testing requirements. Whether for headphones, earbuds, hearing aids, or other hearing assistance devices, there is a model within the series that fits the particular needs of developers and testers. This adaptability makes the CRY3700 series a versatile tool in both product development and academic research environments. Excellent Durability and Stability The CRY3700 series products are constructed primarily from stainless steel, offering excellent corrosion resistance, durability, and the ability to withstand high pressures and temperatures, making them suitable for demanding testing environments. Leading Product: CRY3711 The flagship product in the CRY3700 series, the CRY3711, is an IEC 711 style occluded ear simulator designed for insertion-type earbuds. Complying with IEC 60318-4 standards, it simulates earplug duct insertion to accurately assess earphone performance. Its internal 1/2-inch pre-polarized microphone and input impedance closely mimic the human ear, enabling effective measurements up to 10 kHz, ideal for high-quality in-ear headphone acoustic testing. The CRY3700 series of ear simulators and couplers exemplifies the pinnacle of acoustic simulation technology. With features like low noise levels, wide frequency response, and a coupled cavity design, it sets a high standard in replicating human ear acoustics. Whether you're developing the next generation of earbuds or conducting advanced acoustic research, the CRY3700 series offers the tools you need to succeed in the competitive landscape of audio technology. For more information, please contact us at info@crysound.com.

In modern industrial production, gas leaks lead to resource wastage, and pose serious threats to employee safety and the environment. One of our clients in oil and gas industry reported that traditional leak detection methods can not accurately and efficiently locate leak points. Due to the hazardous environment, there are also potential safety issue for inspection personnel. At CRYSOUND, we understand the significance of this challenge and are here to provide valuable solution. As we know, gas leaks often occur due to factors such as aging from prolonged use, corrosion, and improper installation, typically at equipment connection points like flanges and valves. Gas leaks should not be underestimated. Periodically inspection and maintenance can ensure the safety of production, enhance corporate image and market competitiveness. For industrial production, quickly and accurately locating gas leaks is crucial. Providing assessments of leak volume and economic losses can serve as important references for corporate decision-making. Our client successfully identified multiple leakage points at flanges and valves in the factory by actively using a handheld acoustic imaging camera. The handheld acoustic imaging camera provided assessments of leak volume and economic losses, allowing the client to selectively repair the leak points with larger leak volumes based on the evaluation data, thereby reducing losses in the factory. For more information or to obtain professional services, please contact us. We are dedicated to provide effective solutions!