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OpenTest v2.0.0 Beta was released in June. This update introduces Sequence Mode for the first time, adding test workflow orchestration capabilities to OpenTest. Users can now configure steps such as acquisition, analysis, storage, and reporting into repeatable standardized workflows. The new version also improves batch channel parameter setup, project import/export, sound level meter calculation rate [...]
The CRY8020 Series SonoCam Pocket Acoustic Camera has officially launched. Designed by CRYSOUND for daily walkdowns, SonoCam Pocket brings acoustic imaging, leak detection, and partial discharge screening into a lighter field workflow, helping inspection teams locate abnormal sound sources faster and support follow-up decisions with visual evidence. The goal is simple: make acoustic imaging easier [...]
Precision measurement is only as trustworthy as the tools behind it. At CRYSOUND, long-term reliability has always been part of how we support professional acoustic testing and metrology work-especially for equipment expected to perform consistently over many years. That's why CRYSOUND provides a 10-Year Limited Warranty for eligibleCRY3000 series sensors offering long-horizon confidence for labs, [...]
When validating quietness for home appliances, fans, precision motors, medical devices, transformers, and consumer electronics, we are not only asking whether a product is "loud" or "quiet." We need to know where the sound comes from, under which operating condition it appears, and in which frequency range it becomes uncomfortable. A quiet product can sometimes [...]
Wearable audio devices are becoming smaller, smarter, and more complex. From TWS / OWS earbuds, bone-conduction earphones, hearing aids, smart glasses, and smart watches or smart bands, modern wearable devices can no longer be judged only by whether their acoustic output follows a frequency response curve. In real production environments, a device may pass frequency [...]
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 [...]
Sound Power Testing
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 testing 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, [...]
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.
Sound power testing is used to quantify the total acoustic energy radiated by equipment, with sound power level, Lw, as the key metric. Unlike sound pressure level, which only indicates how loud a sound is at a particular point, sound power is better suited to noise benchmarking and compliance declarations across sites, laboratories and production [...]
