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Audio Spectrum Viewer

Audio Spectrum Viewer

Audio Frequency Analysis Tool

4 ratings
3 reviews
🔧 Utilities
🎵 Music
$0.99

Details

Released
July 27, 2020
Updated
June 15, 2026

Features

Developer

Steve Glenner
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About

Visualize the frequency content of your live audio environment with a dynamic waterfall spectrogram. Analyze sound systems, create audio fingerprints of environmental sounds, and save spectrograms with custom captions. Capture audio in the background for simultaneous recording and photography.

✓Live audio frequency visualization
✓Waterfall/spectrogram display
✓Speaker and sound system analysis
✓Environmental sound fingerprinting
✓User-selectable gain and sample rate
✓Save spectrograms with captions
✓Save audio clips for playback
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What's New in Audio Spectrum Viewer

2.12

June 15, 2026

Version 2.12 Improved Performance Increased Frequency Resolution FFT Window Function Frequency Scale Peak Limiter Low Frequency Cut

More

User reviews

Most RecentHighest RatedLowest Rated

Inaccurate

Poor frequency resolution. No way to adjust frequent scaling. No numerical scales on frequency or time axes. Noise reduction filters everything, including monotones.
MMignonmec02

Response from developer

Thank you for your feedback. There is an update available with several improvements including frequency scales, improved frequency resolution, alternative noise reduction mode (LF cut) and other improvements.

Nice and simple

Easy to handle and it does what it is supposed to do. I just can not use the slider on the bottom because it interferes with the home swipe bar on my iPhone Xs. Can you fix that?
Jjeangabe

Response from developer

Thank you for your feedback. There is an update available which has improved usability on the gain slider among several other improvements.

Great app

I used it to try out different whistle pitches. Works great.
OOhkland

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FAQ

What is Audio Spectrum Viewer used for?

Audio Spectrum Viewer displays the frequency content of your live audio environment in a waterfall spectrogram. It can be used to analyze sound systems and create audio fingerprints of environmental sounds.

Can Audio Spectrum Viewer capture audio in the background?

Yes, Audio Spectrum Viewer allows for background audio capture. This enables users to simultaneously take photos of birds while analyzing their sounds.

How much does Audio Spectrum Viewer cost?

Audio Spectrum Viewer is a paid app, priced at $0.99. There are no in-app purchases or advertisements.

What devices does Audio Spectrum Viewer support?

Audio Spectrum Viewer is supported on iPhone and iPod devices. It is rated for ages 4 and up.

Can I save the audio analysis from Audio Spectrum Viewer?

Yes, spectrograms can be saved to your camera roll with a timestamped and customizable caption. Audio clips can also be saved for later playback.

How often is Audio Spectrum Viewer updated?

Audio Spectrum Viewer was last updated on July 27, 2020, with version 1.0. The initial release date was also July 27, 2020.

Does Audio Spectrum Viewer have ads?

No, Audio Spectrum Viewer is ad-free. The app is a one-time purchase with no advertisements or in-app purchases.

What parameters can be adjusted in Audio Spectrum Viewer?

Audio Spectrum Viewer is a powerful tool that allows for user-selectable gain, sample rate, and other parameters. These can be optimized for a particular setting.