TB Spectrogram

TB Spectrogram | Audio Plugins for Free

“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.”

Sources :

toneboosters.com: https://www.toneboosters.com/tb_spectrogram_v1.html
kvraudio.com: https://www.kvraudio.com/product/tb-spectrogram-by-toneboosters