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Music Spectrograph
Music Spectrograph
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Music Spectrograph free download for Mac

Music Spectrograph

Version 1.2.4

Visualize and reverse engineer music.

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Music Spectrograph overview

Music Spectrograph allows you to visualize and reverse engineer sound and music. The Music Spectrograph displays music and sound as it might appear on a live piano-roll or MIDI/Music editor. The scrolling graph is of music pitch frequencies versus time. This form of sound visualization can assist with the transcription of music (but only if you ignore harmonics and overtone frequencies). In addition, you can also slow down the audio play rate to make it even easier to transcribe music, or even freeze music in time, using a built-in custom audio re-synthesis mode.

The HotPaw Musical Piano Roll Spectrograph creates a scrolling 12th-octave MIDI pitch-centered spectrogram, either from microphone input or synchronized with playing a sound or music file. To analyze a song in your iTunes library, hit the "Pick Tune" button and choose a music file. Hit the "Use Mic" button on the Music Control panel to switch back to analyzing live audio.

  • 12th-octave MIDI-pitch-centered spectrograph (also called a sonogram)
  • Speed up or slow down music play, or even freeze sound in time.
  • Color frequencies to see if they are in-tune or out-of-tune
  • Color frequencies for loudness, or graph in black-and-white

What’s new in version 1.2.4

Updated on Nov 18 2020

Version 1.2.4:
  • Stability and performance improvements for new Mac hardware and new macOS updates





1.3 MB



App requirements

  • Intel 64
  • OS X 10.12 or later
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