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Spectral Eye

Spectral Eye

by Secret Base Design

82 ratings
56 reviews
🔧 Utilities
🎵 Music
Free

Details

  • Released
  • Updated
  • August 1, 2012
  • January 25, 2017

Features

Developer

Secret Base Design
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Spectral Eye screenshot #1 for iPhone
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Spectral Eye screenshot #3 for iPhone
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About

Visualize the harmonic frequencies that make up sounds. This app uses a Fast Fourier transform to display sound components in a unique spiral arrangement, aligning octaves. It's ideal for musicians and sound enthusiasts to understand tonal differences and musical structures.

✓Spiral frequency spectrum display
✓Fast Fourier transform analysis
✓Visualizes harmonic frequencies
✓Adjustable synthesizer with sine waves
✓MIDI input for triggering notes
✓Displays relative frequency strengths
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What's New in Spectral Eye

2.0

January 25, 2017

This app has been updated by Apple to display the Apple Watch app icon. MIDI support added. Updated for iOS 10.

More

User reviews

Most RecentHighest RatedLowest Rated

Best app ever

This is my favorite app of all time. If it goes away I’m gonna pay someone to build a similar app for me.
nineinchskynineinchsky

Great for drums

This is the most reliable and accurate tuner I've found so far. I mainly use it to identify the pitch of drums and cowbells. I love it.
DrummingcriDrummingcri

Too bad, it’s so good

A really great app but not updated in years and hasn’t flushed out its potential. Nonetheless, an excellent tool. One of my only negative remarks is that one can’t use 432hz as pitch tuning rather than “concert” 440hz.
QuickentiesQuickenties

Is it working??

Not for me…
I dont need a Nickname!!I dont need a Nickname!!

Extraordinary !

… Meant in the nicest possible way:

This App is innovative, amusing, and useful

Thank You for making it, and for giving it free
PortaDiskPortaDisk
See 51 more reviews

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FAQ

What does Spectral Eye do?

Spectral Eye analyzes incoming sound and displays its constituent frequencies in a unique spiral spectrum. It uses a Fast Fourier transform to break down sounds into individual sine waves, revealing the harmonic content that defines different instruments and tones.

How does the spiral display work?

The app arranges frequencies into a spiral where octaves line up as rays emanating from the center. This allows for a clear visualization of musical structure, as frequencies an octave apart will appear on the same line from the center.

Is Spectral Eye free to use?

Yes, Spectral Eye is completely free to use. The developers have stated it will remain free with no pop-up ads or nag screens, focusing on providing a clean and enjoyable experience for users.

What are the key features for musicians?

Musicians can use Spectral Eye to see how different instruments produce unique sounds by visualizing their resonant frequencies. It also includes a simple synthesizer and MIDI input, allowing users to generate sounds and control external MIDI synthesizers while observing their frequency composition.

Can I use Spectral Eye to learn songs?

Yes, you can use Spectral Eye to help pick out the notes to a song. By watching the display as a song plays or as you play an instrument, you can see where the notes land on the frequency spectrum, aiding in transcription and learning.