Spectrum Analyzer is an Audio Unit Plugin effect that visualizes your audio in real-time.
it use High Resolution FFT Audio for precise rendering audio frequency.
Is compatible with all the Host apps that support Audio Unit like Garage Band, Logic Pro, Ableton Live, Fl Sudio and much more.
Built on Metal Framework use the GPU to render the waveform so is super light on CPU for processing audio.
The Plugin is available for macOS intel and iOS too.