rtspeccy is a real-time spectrum analyser that displays the frequency content of incoming audio. It is designed for users who want a relatively simple application for observing live sound through graphical spectrum and history displays.
The application is particularly useful for experimenting with acoustic signals, investigating harmonics and visualising changes in audio frequencies. Its OpenGL display presents current measurements alongside a history of earlier spectral information.
rtspeccy keeps its interface focused on the analysis itself. Users can freeze the display, navigate the visualisation and examine overtone relationships without working through a complex collection of measurement tools.
This is free and open source software.
Key Features
- Real-time frequency spectrum analysis of incoming audio.
- OpenGL-based spectral visualisation.
- Split-screen display showing the current spectrum and recent history.
- Colour-coded history using a configurable colour ramp.
- Freeze the display to examine a particular moment.
- Zoom into selected frequency regions.
- Pan across the spectral display.
- Interactive overtone guidelines showing harmonic relationships.
- Indicate overtones and undertones around a selected frequency.
- Configurable FFT analysis parameters.
- Adjust spectrum scaling and history display options.
- Lightweight interface designed around a small set of analysis controls.
Website: movq.de/git/rtspeccy
Support:
Developer: P. Hofmann
License: GNU General Public License v3.0
rtspeccy is written in C. Learn C with our recommended free books and free tutorials.
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Read our verdict in the software roundup.
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