“TB Spectrogram: A visual support tool to inspect time and frequency. Free.
Visualize the audio spectrum; see what notes and frequency ranges were active over time. Switch between spectrogram and spectrum analyzer modes. Spectrogram is completely free and included in the ToneBoosters software installer
- Linear spectrum analyzer.
- Logarithmic (octave) spectrum analyzer.
- Spectrogram mode.
- Map frequencies to piano keyboard notes.
- Resizable UI.
- Many color themes to choose from.
TB Spectrogram is available as VST, VST3, AU, and AAX plug-in for Windows and for macOS, as well as AUv3 plug-in for iOS and iPadOS.”