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Wind tunnels were originally built to see the flow. Within a controlled test section, engineers direct airflow at a specified velocity over vehicles, wings, UAVs, rotor blades, or scale models. By analyzing pressure distributions, aerodynamic forces and moments, smoke visualization, Particle Image Velocimetry (PIV), and balance measurements, they can determine whether flow separation occurs, drag [...]
This guide helps users quickly set up and perform sound power testing using a hemispherical sound power test frame, the SonoDAQ Pro data acquisition front-end unit, and OpenTest. Stage Completion Criteria 1. Frame installation The hexagonal base is stable, the 6 arc tubes are tightened, and the top cover is secured without shaking. 2. Microphone [...]
Using a wired headphone acoustic measurement workflow as an example, this article explains how OpenTest connects to an NI USB-4431 DAQ device and supports a complete acoustic test workflow, from test setup, channel configuration, and signal acquisition to frequency response analysis, distortion analysis, report generation, and sequence-based automation. The workflow helps engineering teams upgrade their [...]
In today's rapidly evolving electroacoustic product landscape, production line testing systems are no longer expected to simply "produce measurements." They must balance test capability, throughput, stability, and scalability. Core metrics such as frequency response, distortion, and sweep analysis remain essential. At the same time, more advanced requirements, such as anomalous sound detection, multi-channel synchronization, automated [...]
High SPL Measurement
Learn how to select a working standard microphone for high SPL testing above 160 dB, including distortion limits, test environment requirements, THD data, and CRYSOUND microphone options.
A practical, repeatable workflow for production and lab teams-covering calibration, RF measurements, pass/fail limits, and automated reporting. Frequency Calibration and Bluetooth Performance Testing Test System: QuickRadio + MT8852B Bluetooth Tester QuickRadio provides a powerful platform that can test RF front-end interactions. QuickRadio supports multiple preconfigured sequence templates, making it easy to customize RF test workflows [...]
The audio quality of Bluetooth products is critical, yet traditional manual testing is inefficient and inconsistent. To address this, we leverage the secondary development capabilities of the CRY578 to deliver an efficient, programmable, and automated testing solution. Core Tool: CRY578 Interface Overview The CRY578 is a hardware interface specifically designed for audio testing. It functions [...]
CRY3213 is a 1/2-inch prepolarized free-field microphone engineered for NVH testing in the real world - rain, dust, engine bay heat, Arctic cold. With IP67 protection and a -50°C to +125°C operating range, it delivers lab-grade accuracy without compromise, from powertrain noise to road and wind noise measurements. The Problem With Traditional Microphones Every NVH [...]
CRYSOUND's CRY2830 Series sound level meters support 24/7 data center noise monitoring, helping operators maintain noise compliance records and reduce the risk of fines. As AI workloads surge and hyperscale facilities continue to expand, data center noise complaints are rising rapidly. At the same time, environmental noise regulations are becoming more stringent. In Europe, more [...]
Use our free compressed air leak cost calculator to estimate annual loss, then learn how to find and fix plant air leaks faster.
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 [...]
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 [...]
