Products - Sigview spectrum analyzer - FFT based signal analysis software

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What is SIGVIEW?

SIGVIEW is a versatile signal analysis software package that offers both real-time and offline capabilities. It comes equipped with a wide array of powerful tools for signal analysis and statistical functions, all complemented by a comprehensive visualization system. The software is designed to be highly customizable and flexible, and does not require programming knowledge to use effectively.

SIGVIEW offers a distinct user interface and approach to signal analysis, providing users with complete freedom to combine a range of methods in any way they see fit. The software is not limited by artificial rules or constraints, allowing for ultimate customization and flexibility. Once users become familiar with the software's fundamental principles, navigating SIGVIEW becomes intuitive and straightforward.


SIGVIEW is distributed as shareware, providing users with the opportunity to download a fully functional trial version and evaluate its suitability for their needs over a period of 21 days. To continue using SIGVIEW beyond the trial period, users must purchase a license. Upon purchase, a license key will be provided, which unlocks the time-limited trial version and converts it into a fully functional, licensed software.

SIGVIEW screenshot with perspective, spectrogram
SIGVIEW screenshot with perspective, instruments
SIGVIEW screenshot with perspective, Time-FFT
  • Two versions available: STANDARD and PRO, with different prices and feature levels.
  • Support for a wide range of data acquisition devices, from common sound cards to professional DAQ devices. Various options for triggering, decimation and file-logging are included. The following device types are supported:                        
    • NIDAQmx compatible DAQ devices from National Instruments®  (voltage input, IEPE velocity/force/acceleration)
    • Measurement Computing® DAQ devices (12/16/24-bit voltage input)
    • LabJack® U3/U6/T4/T7/T8 USB/Network DAQ devices (voltage input)
    • Some Data Translation® DAQ devices (DT9837 series)
    • Microsoft Windows® compatible sound cards (DirectSound and ASIO drivers are supported)
  • Real-time data display, signal analysis, and control, enabling you to work with live signals and observe results immediately.
  • Import and export of signal files in numerous formats, including WAV, MP3, ASCII/CSV, WMA, AU, AIFF, EDF, SND, and 8/16/32-bit binary files
  • Julia Language embedded scripting for adding new analysis functions or input/output formats
  • Optimized FFT algorithm with fine parameter tuning and various pre and postprocessing options: windowing, zero-padding, power spectrum and PSD, automatic averaging, test for spectral peaks integrity...
  • Spectrogram and Time-FFT functions with powerful graphical display solutions
  • Order Analysis functions, including forward and inverse transformations
  • Dual channel (cross-spectral) analysis (cross spectrum, coherence, cross correlation...)
  • Signal filtering (Bandstop, Bandpass, Lowpass, Highpass)
  • 3D signal filter for a free selection of filter time, frequency and amplitude properties
  • Real-time arithmetic on signals (subtract, multiply, add, scale, normalize...)  
  • Various statistics functions: peak hold, averaging, smoothing, removing linear trend, probability distribution... Analog-style instruments for real-time display of important signal parameters
  • Custom filter curves can be freely defined and applied directly to time-domain signal or to the calculated spectrum
  • Advanced signal display and handling options: unlimited overlays, unlimited number of markers and annotations for each signal, parallel signal display (EEG style), cut/copy/paste signal parts, unlimited zoom levels, audio playback...
  • Signal generator including sine, white and pink noise, step, sweep...
  • Graphical block diagram environment improves productivity when working with complex analysis systems
  • Custom tools and workspaces can be created and later reused or exchanged with other SIGVIEW users
  • Various command-line options for automation and remote control from external applications or from simple batch files
  • No artificial or license-based limitations, enabling FFTs to be calculated from millions of samples and dozens of signals to be combined and analyzed simultaneously.
  • Field-proven by thousands of satisfied users. See our Reference list for some examples.

SIGVIEW v6.2.3
has been released!

SIGVIEW box with CD

New in v6.0:
Integrated Julia plots
New ASCII/CSV Import

New in v5.0:
Julia Language Scripting

New in v4.0:
Order analysis
3D signal filter
Support for LabJack T4/T7


  • Powerful: SIGVIEW offers a wide range of functions for spectral and cross-spectral analysis, statistics, filtering, and graphical solutions, all in one package and at one price.
  • Real-time: Whether working with live signals or signal files, SIGVIEW offers seamless functionality and flexibility, allowing users to start with a sound card and continue with professional DAQ devices.
  • Fast: With a highly optimized FFT algorithm and 2D/3D graphics, SIGVIEW delivers lightning-fast performance for even the most complex signal analysis tasks.
  • Professional-looking graphics: SIGVIEW generates stunning 3D or 2D graphics that are ready to be incorporated into conference papers or presentations.
  • Optimal performance at optimal price: SIGVIEW delivers professional-grade signal analysis tools at a fraction of the cost of other software applications, making it an excellent value for users.
  • Risk-free: With a 21-day fully functional trial version, users can try SIGVIEW risk-free to determine if it meets their needs.
  • Customizable: SIGVIEW can serve as a template for more specialized signal analysis applications. If you need a new analysis option, new design, support for your file formats or data acquisition devices, just talk to us. Customized SIGVIEW versions can be provided at very affordable price.
SIGVIEW large screenshot with spectrogram, Time-FFT and instruments

  • SIGVIEW User Manual online
Not sure if you are ready to install the trial version? Take a look at the SIGVIEW User Manual online before downloading.
  • Academic prices
We offer huge discounts for academic institutions. See our order page for details.
  • References
See who is already using SIGVIEW in our References.
  • Premium support needed?
Our premium support packages will provide you with professional and fast support at a very affordable price. See the order page for our current 50% discount action.
  • References
You can find some of our references at the About page

  • Vibration analysis
  • General sound analysis
  • Communication signal analysis
  • Seismic signal analysis
  • Numerical mathematics
  • Financial trends analysis
  • Voice signal analysis
  • Noise detection, analysis and removal
  • Signal and electronic intelligence
  • Medical signal analysis (ECG, EEG...)
  • Statistical data analysis
  • Education                                                                                                                                                                                                                
Tutorial: Basic functions (External YouTube link)

Video Tutorials

To help you get up to speed quickly and easily, we offer a variety of video tutorials that cover the basic concepts of SIGVIEW and help you shorten the learning curve. These tutorials are designed to be informative and engaging, providing a visual guide to the software's features and capabilities.
Tutorial: Data acquisition (External YouTube link)
Tutorial: Filtering (External YouTube link)
Tutorial: Julia Language scripting (External YouTube link)
Tutorial: Spectrogram, Time-FFT (External YouTube link)
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