Music Spectrograph

Music Spectrograph

iOS Universal Music

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Music Spectrograph enables the visual reverse engineering of sound and music in real-time. See music and sound frequencies as they might appear on a live piano-roll MIDI music editor. Music Spectrograph is now being using in college music programs to aid students in learning music transcription.

The Hotpaw Music spectrograph presents a high-resolution scrolling spectrogram as you listen, so that you can see these patterns in sound and music, as well as how sound corresponds to notes on a piano keyboard. This piano alignment makes it far easier to spot which frequencies in sounds correspond to which musical notes.

Features include:
- 12th-octave MIDI-pitch-centered spectrograph (also called a sonogram)
- Usable with live audio, tunes from your iOS device's music library, or a file downloaded via a URL (web address)
- Records up to a 4 minute spectrograph history you can stop, scroll back and review
- Slow Down tunes by up to 8X, or speed music up by 3X to skip sections faster
- Stop music in time, and still hear the music frequencies present via re-synthesis (scroll back a little in time to bring up the ReSynth switch).
- Play tunes in mono, left or right channel only, or with center-panned vocals reduced
- Color the pitch graph to see if notes are in-tune or out-of-tune
- Color the spectrograph for loudness, or graph in black-and-white or with Pastel colors
- Mid-pitch filtering to remove some of the higher overtones

Use the Input? button to select a tune from your library (DRM protected iTunes files are not supported). Use the Gear button to select among several viewing modes. There's a volume control to manually set the sensitivity threshold. Stop playing or recording to scroll back and review or resynthesize sound. Touch the keyboard during resynthesis to isolate one note.

For many musical sounds, this app will show you many overtones and harmonics, not just the fundamental pitch of notes. Some musical experience is required to tell musical notes from their overtones and harmonic frequencies.

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What's New

Bug fix for misplaced controls.

New in Prior Version 1.8.1 :

Music Spectrograph can now download an audio or music file from an entered URL for spectrogram visualization.
The rate control for slowing down music has been renamed the Playing Speed control.
Temporary recording of the last one minute of audio input for replay analysis was added.
This update also includes a few bug fixes and enhancements for iOS 10.

Music Spectrograph will now request permission to access your iTunes Media Library. Please grant permission if you wish the app to be able to play, analyze, and visualize spectrographs of that music.

Thank you for trying our app! If you find the Music Spectrograph app useful, we would greatly appreciate if you took the time to write a thoughtful review. App Store ratings and review are very helpful in encouraging continued development

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