Spectral Equalizer

A Spectral equalizer built with C++20 and Qt6.

Load a WAV file, select a region on the spectrogram, and modify its magnitude using the gain and brightness sliders. Play the original and modified audio to hear the difference.

Stack

• C++20 — RAII, move semantics, std::jthread, std::atomic
• FFTW3 — STFT / iSTFT
• Qt6 — desktop GUI
• PortAudio — audio playback
• libsndfile — WAV file loading

Build

mkdir build && cd build
cmake .. -DCMAKE_TOOLCHAIN_FILE="<path_to_vcpkg>/scripts/buildsystems/vcpkg.cmake"
cmake --build . --config Debug

Dependencies

Managed via vcpkg. See vcpkg.json.