OpenTest
Next-Generation
Audio & NVH Measurement Software
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Measure Mode
Designed for real-time acquisition and analysis, it works with data acquisition hardware. Supporting both “analysis while acquiring” and “analysis after acquiring”, it meets the needs of dynamic monitoring and flexible analysis.
Analysis Mode
Focused on offline in-depth analysis, it processes collected waveforms or data. It enables full-process analysis from data cleaning to analytical computation, helping explore in-depth data features.
Sequence Mode
Suitable for repetitive testing and production line scenarios, it connects the full “acquisition-analysis-storage-report” workflow. Focusing on batch execution and simple control, it improves repetitive testing efficiency.
Features
OpenTest fully covers signal analysis needs and enables the completion of various testing tasks accurately and efficiently
Monitor
Continuous waveform monitoring and FFT spectrum analysis enable real-time identification of signal anomalies, such as clipping, clock jitter, and other issues. It simultaneously tracks key metrics, including RMS level, THD, SND, and frequency response, with configurable high-pass/low-pass filters and A/C/Z frequency weighting.
FFT
FFT analysis provides in-depth frequency-domain analysis capabilities for audio signals. Within a set recording period, the system slices and analyzes the acquired waveform according to the FFT length, with results updated dynamically in real time. Users can flexibly adjust core parameters such as FFT length, window function, averaging method and times based on testing requirements, and obtain multi-dimensional analysis results including FFT spectrum, ASD, and PSD. After the test is completed, functions including playback, audio listening, waveform and data export, and report generation are supported.
Octave
The octave analysis function provides two core tools: FFT-based fast analysis and filter-based standard analysis. Within a set recording period, the system can simultaneously perform multi-channel analysis with different octave widths on the acquired waveform, flexibly adapting to diverse testing scenarios. Users can customize the frequency range according to their needs, apply A/C/Z frequency weightings, and conduct synchronous analysis of multiple octave types including 1/1oct., 1/3oct., 1/6oct., 1/12oct., and 1/24oct. The analysis results can be intuitively presented in three forms: bar charts, line charts, and tables, facilitating data interpretation and storage.
Sweep
The sweep analysis function offers two core modes: continuous sweep and stepped sweep, enabling dynamic sweep testing of signals within a set frequency range. The system can automatically generate sweep signals based on preset parameters (such as sweep rate or step interval), synchronously collect response data from the measured object, and calculate and display key indicators in real time—including amplitude-frequency characteristics and phase-frequency characteristics. It also supports multi-channel parallel testing, effectively adapting to multi-dimensional testing scenarios.
Sound Power
This solution supports sound pressure-based sound power measurement, fully compliant with international standards ISO 3744 (Engineering Method), ISO 3745 (Precision Method), and ISO 3746 (Survey Method), meeting various accuracy requirements in different scenarios. It is suitable for R&D and quality control in consumer electronics, automotive audio systems, and professional audio equipment.
Export
OpenTest’s export function supports multi-dimensional result preservation: it can export original waveform files, structured test data (supporting CSV format), and various analysis charts (such as spectrograms and octave bar charts). The export process is triggered with one click, and data and charts maintain their original association, facilitating report writing, secondary analysis or cross-tool collaboration, while balancing convenience and data integrity.
Report
OpenTest’s report generation function comes with a variety of preset templates. It supports both general-purpose reports for daily needs and sound power test reports that comply with international standards, eliminating the need to build frameworks manually. The report content can be flexibly customized: basic information such as test descriptions and test environments, as well as key content like core test data and analysis charts, can all be added, deleted or formatted on demand, enabling quick output of professional reports that are standardized and meet specific requirements.
Open Hardware
OpenTest Open Hardware Access Protocol enables data acquisition devices to connect via mainstream audio protocols such as openDAQ, ASIO, WASAPI, and Core Audio. It also supports connections through private protocols like NI-DAQmx.
SonoDAQ
AIO Test System
Fireface UFX III
USB-4431
XHS
UMik-1
Open Plugin
OpenTest supports three-tier plug-in development and expansion using languages such as Python, MATLAB, LabVIEW, and C++. It covers all tiers: from the underlying custom algorithm plug-in integration (Algorithm), to the middle-tier theme customization (Theme), and to the upper-tier application module plug-in integration (Application). This full-tier coverage flexibly meets functional expansion needs in different scenarios.
Open Source
OpenTest ships as an open, stable foundation with clear interfaces. We follow a Chromium-like model: a common core that multiple products build on—so performance and compatibility gains help everyone, while teams layer their own modules, policies, and branding.
OpenTest Core
Stable open foundation ·versionedinterfaces · plugin APls
Shared performance & compatibility updates
Community
Free & Open Source
Complete core features
Forum support
Professional
Built on Community
Advanced algorithms & theme
Custom Ul & workflows
Enterprise
White-label & company-level extensibility
All application features
Security · Compliance ·SLA
About Us
OpenTest is an all-new acoustic and vibration testing software, developed by the Data Acquisition Team at CRYSOUND. Built on deep technical expertise, it breaks free from the limitations of traditional testing tools and aims to drive transformative change in the global acoustic and vibration testing industry—redefining efficiency and user experience for testing workflows.
