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Spectrum Eye RTA

Spectrum Eye RTA

Spectrum analyzer & SPL meter

7 ratings
7 reviews
🎵 Music
🔍 Reference
$17.99
In-App Purchases

Details

Released
June 1, 2018
Updated
October 29, 2026

Developer

Oleg Naumenko
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Spectrum Eye RTA screenshot #1 for iPhone
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Spectrum Eye RTA screenshot #10 for iPhone
iphone
ipad
🧾$0.99 - $4.99
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About

This application analyzes the frequency content of audio input from your device's microphone or an external interface. It offers detailed spectral analysis with various plot types and SPL measurements, suitable for music professionals and audio enthusiasts.

✓Real-time frequency spectrum analysis
✓SPL meter with A/C/Z weighting
✓Multiple plot types (bars, line, spectrogram)
✓Fractional-octave resolution
✓Peak hold and Find Peak functions
✓Supports external microphones and interfaces
✓Pink noise generator
Show original description

What's New in Spectrum Eye RTA

2.3

October 29, 2026

• iPad: use two plots (spectrum + spectrogram) in Layout on any iPad window size, including Split View • iPad: slightly smaller large SPL readout so the plot keeps more room on screen • Fixed bug when app continued running in background when not needed, in some circumstances. • Fixed bug when app sometimes didn't start properly when sent to background and then brought back to foreground. • More reliable capture during route changes

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5

Subscriptions & In-App Purchases

$1.99

Solid Support

A little extra support helps keep Spectrum Eye evolving

User reviews

Most RecentHighest RatedLowest Rated

希望更新一下

希望更新一下
Z&Z Y &Q

Response from developer

感谢您的反馈。您希望看到哪些功能？具体希望更新哪些内容？

Excellent app, one feature request

Great frame rate, pretty low latency, performs very well. However, I wish the resolution could get as fine as 1/100 or if I could type in an exact frequency to monitor instead of touching the frequency closest to the one I want, not getting the exact one I want because of the course resolution.
TThe_Myth_Maker

Response from developer

Thank You for a valuable feedback. Regarding max resolution: on iPad it’s 1/96 which is almost what You want. Unfortunately, higher resolutions are not practical as it will double the latency, require more computation.

Schnell und unkompliziert

Habe damit Lautsprecher über DSP linearisiert. Ging schnell mit super Ergebnis, was mir auch von Kollegen bestätigt wurde.
Super App!
RRomanINC

Response from developer

Vielen Dank für Ihr Feedback und entschuldigen Sie die späte Antwort. Ich hoffe, Ihnen gefällt die neue Version 2.0.

Favorite Spectrum so far

Very fast, light and easy to use! My favorite for now and ever!
MMakc_Z

Response from developer

Thank You for Your positive review!

Perfect

The only tool that really meassures corect, because of bypassing the internal signal processing.
Very handy, easy to understand.
Thanks for that marvelous pice of software.
MWMichl Wild

Response from developer

Thank You for Your kind review!

See 2 more reviews

FAQ

What is Spectrum Eye RTA?

Spectrum Eye RTA is a mobile application that displays the frequency content of audio input from your device's microphone or an external interface. It provides detailed spectral analysis and SPL measurements for audio professionals and enthusiasts.

What devices does Spectrum Eye RTA support?

Spectrum Eye RTA is available for iPhone and iPad devices. It utilizes the built-in microphones or can connect to external microphones and class-compliant audio interfaces.

How much does Spectrum Eye RTA cost?

Spectrum Eye RTA is a one-time purchase priced at $17.99. There are no subscriptions required to use its full functionality.

Does Spectrum Eye RTA have ads?

No, Spectrum Eye RTA does not contain advertisements. It is a paid application with all features unlocked upon purchase.

Can I calibrate Spectrum Eye RTA?

Yes, Spectrum Eye RTA allows for per-route SPL offset calibration against a reference. You can also import mic correction files (.cal, .txt, .csv) for accurate measurements.

What is the update frequency for Spectrum Eye RTA?

Spectrum Eye RTA is in active development, with the latest version being 2.3, last updated on October 29, 2026. Suggestions are welcome, indicating ongoing support and potential future updates.

Is Spectrum Eye RTA suitable for beginners?

While designed for professionals, Spectrum Eye RTA can be used for practice frequency-aware hearing. Its detailed features may require some understanding of audio principles.

Does Spectrum Eye RTA record or upload audio?

No, Spectrum Eye RTA processes audio on the device and does not record, store, or upload your audio content. Your audio data remains private.