Measure Sound Better
This article introduces how to build a multi-channel sound level meter compliant with IEC 61672-1 using OpenTest, in combination with SonoDAQ data acquisition hardware and measurement-grade microphones. The system supports A / C / Z frequency weighting, F / S…
In acoustic testing, acoustic metrology, and product noise evaluation, the term measurement microphone typically refers to a condenser measurement microphone. Its signal generation relies on a polarization electric field: sound pressure changes the capacitance, and the front-end circuitry converts this change…
This integrated single-station EoL test solution enables automotive HVAC air vent suppliers to perform NVH (noise/BSR), motor electrical testing, and vane presence detection in a single inspection step, helping to improve overall test efficiency and reduce labor dependency. Modern automotive…
In industrial production and environmental monitoring, excessive noise implies compliance risks or potential complaint disputes. To handle this, you need a professional sound level meter (SLM) that provides “credible, traceable, and analyzable data.” Faced with price differences ranging from hundreds…
The CRYSOUND AI-based headphone acoustic anomaly testing solution is built around the CRY acoustic anomaly testing system.
CRYSOUND provides a professional VPU test solution for bone-conduction voice applications in smart wearable devices
This article is for engineers working in acoustics and vibration testing. It introduces how to perform sound quality measurements in OpenTest based on the ISO 532 loudness standard and the ECMA-74 tonality evaluation methods. By measuring and comparing three key…
Measurement microphones are used in acoustic metrology, type-approval testing, and engineering measurements. Unlike general audio capture applications, measurement scenarios place far greater emphasis on consistency and traceability: the same microphone should deliver stable output when re-tested over time; variation within…
Before you begin any formal data acquisition work, one critical step is connecting the DAQ front end to the PC. In day‑to‑day engineering, the most common options include USB direct connection, Wi‑Fi wireless, Ethernet, and PXIe. This article introduces these…
CRY580 A²B Interface is a bidirectional bridge designed to connect the A²B (Automotive Audio Bus) ecosystem with standard test & measurement setups (e.g., SonoDAQ, CRY6151B, Audio Precision). This article explains what makes A²B testing challenging—most analyzers don’t have a native…
In audio and vibration testing, FFT analysis (Fast Fourier Transform) is one of the tools almost every engineer uses sooner or later: A lot of practical questions are actually asking the same few things: FFT is the most universal entry…
CRYSOUND provides a spatial audio testing system based on a three-axis motorized rotary platform, enabling fast and stable evaluation of spatial audio functionality.