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Not every sound is easy to record. Common sources such as speech and machinery are usually within the capabilities of general-purpose measurement microphones. When the target drops to the level of insect activity, product standby noise, or precision equipment operation, however, the measurement system's own noise can become a limiting factor. In this case study, [...]
Anomalous Sound EoL Testing helps robot manufacturers identify actuator defects before final assembly or shipment. This article explains the limits of manual inspection and presents CRYSOUND's automated Sound and Vibration testing workflow, system architecture, use cases, and production-line integration options for finger motors, joint modules, and reducers. Why Anomalous Sound Detection Matters in Volume Production [...]
Learn how CRYSOUND combines AI listening, acoustic fixtures, OpenTest software, and production data for headphone defect detection at end of line.
In modern metrology labs, accurately measuring product noise requires more than just sound pressure values. This case study demonstrates how a metrology institute implemented a repeatable, multi-point sound power measurement workflow using SonoDAQ Pro and OpenTest, enabling reliable comparison of servers, fans, home appliances, and motors under different operating conditions. Learn how synchronized data acquisition, [...]
Partial discharge (PD) signals were detected in the medium-voltage switchgear of a plant, raising concerns about the safety and stability of the electrical system. To ensure safe inspection, the technical team isolated the affected area by cutting power. Corrective measures included applying high voltage from an external source to the equipment and using advanced detection [...]
Traditional NVH tools still matter, but they don't cover every EV scenario-acoustic cameras fill the gap with real-time noise visualization and wide-band diagnostics. The Quiet EV Paradox: Why Electric Cars Are Actually "Noisier" It sounds like a paradox - electric vehicles have no roaring engine, yet engineers are finding it harder than ever to achieve [...]
During pilot production and production line ramp-up, many issues do not appear in the way teams initially expect. Sometimes it starts with a small fluctuation at a test station, or a comment from a line engineer saying, "This result looks a bit unusual."However, when takt time, yield targets, and delivery milestones are all under pressure, [...]
In our previous blog post, Anomalous Sound Detection: From Human Ears to AI"we discussed the key pain points of manual listening, introduced CRYSOUND's AI-based anomalous sound testing solution, outlined the training approach at a high level, and showed how the system can be deployed on a TWS production line. In this post, we take the [...]
A2DP (Advanced Audio Distribution Profile) is the core Classic Bluetooth profile for high-quality audio streaming. This article provides an overview of how A2DP transmits music, explains its position in the Bluetooth protocol stack, and introduces a practical A2DP testing workflow using the CRY578 Bluetooth LE Audio Interface. How Does A2DP Transmit Music? A2DP is the [...]
Valves are the "core control components" of pipeline systems. They perform four key functions-opening/closing, regulating, isolating, and directing-enabling precise control of fluid flow. Once sealing integrity fails, minor cases can lead to process upsets and energy losses, while severe cases may result in fires or explosions, toxic exposure, or environmental pollution. We built a valve [...]
Negative-pressure airtightness is critical for high-speed train car bodies, and even minor leaks can lead to rework or delivery risks. This article presents a case from Changchun where CRYSOUND's CRY8124 Acoustic Imaging Camera was used to quickly, intuitively, and verifiably pinpoint leaks on a carbon-fiber train car body shell, showcasing the CRY8124's application in vacuum [...]
In this article, we use a wind turbine blade factory as an example to show how CRY8124 Acoustic Imaging Camera can help complete a vacuum (negative-pressure) integrity test for a single blade in about 10 minutes. What Is a Wind Turbine Blade? Wind turbine blades are the key rotor components that convert wind energy into [...]
