A sound visualisation project made in early 2023. I wanted to learn about how FFT works in order to do some analysis on the audio, such as extracting stems, spectral editing and detecting some features of the audio. I moved on with other projects and I did not achieve these goals, but I still learned some things about FFT and I could pick this idea up in the future. The code is public for archival purposes, maybe it's of use to someone.
The program is only in Romanian, as I made it for myself. (sorry)
Open a WAV file with the program (drag the file onto it in Explorer) in order to play it. If you see flashing blue text it means that you didn't load a file.
A precompiled version of the program for Windows is available in the Releases section.
Displays an FFT spectogram which can be manipulated with the following keybinds:
- S: add offset
- W: decrease offset
- D: increase width
- A: decrease width
- F: toggle view mode (default is FFT, secondary is chunks, it's buggy)
- Space: pause
The frequency at which your cursor is located and its amplitude are displayed in the upper left corner.
No build system is provided. Link/include these libraries with the build system of your choice:
- SDL2-2.26.1
- SDL2_ttf-2.20.1
- fftw-3.3.5
- portaudio
- sndfile
If someone would like to continue to work on this project or another one, please contact me at the e-mail address on my profile!
- Lazy Foo's SDL2 tutorials: https://lazyfoo.net/tutorials/SDL/
- Titillium font designed by Accademia di Belle Arti di Urbino
- The ARSS for inspiring me to learn more about FFT: https://arss.sourceforge.net/
- Music included in the release: https://freesound.org/people/graham_makes/sounds/447527/