1. Home
  2. 🎵 Music
  3. Audio Spectrum Analyzer dB RTA
Audio Spectrum Analyzer dB RTA

Audio Spectrum Analyzer dB RTA

Sound frequency, decibel meter

3K ratings
334 reviews
🔧 Utilities
🎵 Music
Free
In-App Purchases

Details

  • Released
  • Updated
  • September 28, 2017
  • September 29, 2025

Features

Developer

Marina Polyanskaya
✨Promote your app ✨
Audio Spectrum Analyzer dB RTA screenshot #1 for iPhone
Audio Spectrum Analyzer dB RTA screenshot #2 for iPhone
Audio Spectrum Analyzer dB RTA screenshot #3 for iPhone
iphone
ipad
🧾$1.99 - $7.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐334
Reviews↘︎
📝40+ tags
Tags↘︎
🔄3+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

Analyze sound frequencies and decibel levels with this advanced tool. Ideal for tuning audio systems, it offers real-time spectrum analysis and sound metering for various applications.

✓Octave Band Real-Time Analyzer
✓FFT Plot - Fast Fourier Transform
✓Integrated Sound Level Meter (dB-A)
✓Multispectral Harmonic Analyzer
✓Hold Max and Min Peaks
✓Various Window Functions
Show original description

What users say

Summarized from real user reviews of Audio Spectrum Analyzer dB RTA. Based on 3K reviews and a 4.5/5 average, it highlights the 4 positives and 4 negatives reviewers mention most about this Music app.

Positive things

  • 🚀Excellent audio analysis tool
  • 👍Clean and intuitive interface
  • 💡Customizable frequency range
  • 🔍Accurate real-time spectrum visualization

Negative things

  • 🐛Compatibility issues with newer iOS versions
  • 🔁Constant prompts to upgrade to Pro version
  • 🔌High battery consumption
  • 📊Inaccurate frequency tracking in some modes
See all reviews

What's New in Audio Spectrum Analyzer dB RTA

2.3

September 29, 2025

• iOS 26 support

Subscription plans

Premium Access

Access to all app features without ads.

$1.991 Month
3 Days trial
How to cancel Audio Spectrum Analyzer dB RTA subscription ⁉️
2

In-App Purchases

$7.99

Spectrum Analyzer Pro

Access to all functions with no limits

User reviews

Most RecentHighest RatedLowest Rated

Very good app and free

Perfect RTA for working out any audio/studio to mix/EQ/stage for the best quality of sound. It’s free, no ads besides a built-in popup every now and then. Very customizable and accurate readings based on multiple FFT size choices
CotakekCotakek

Не работает

Не работает приложение, не показывается ни одна кнопка, только фон сиреневый.
СветаРыбалкинаСветаРыбалкина

Nur kostenpflichtig!

Laut AppStore angeblich keine InApp-Käufe aber ohne ein Kostenpflichtigen 3-Tages-Test oder Einmalkauf für 8,99 nicht verwendbar!
Peter_BrueckPeter_Brueck

>:(

I, unlike the countless other people who reviewed this, have not liked this app. As far as I’m able to tell, I’m trying to look at waveforms from imported music and that’s impossible. Plus, the cover image? Why? WHY!? I’m a trypophobic person and that thumbnail disturbs me.
/* -/* -

Took over phone

App took over phone and offered no way to close. Had to lock, and click on a notification from a different app to get access to anything other than this app.
dlfeatherlydlfeatherly
See 329 more reviews

Developer apps

Light Meter - lux and foot candle measurement tool
Light Meter - lux and foot candle measurement tool

by Marina Polyanskaya

🔧 Utilities

(118)

$1.99
dB Decibel Meter - sound level measurement tool
dB Decibel Meter - sound level measurement tool

by Marina Polyanskaya

📊 Productivity

(244)

$1.99
Audio spectrum analyzer EQ Rta
Audio spectrum analyzer EQ Rta

Sound frequency, decibel meter

📊 Productivity

(245)

$3.99
Octave Band Real Time Frequency Analyzer and Sound Level Meter
Octave Band Real Time Frequency Analyzer and Sound Level Meter

by Marina Polyanskaya

📊 Productivity

(4)

$1.99
Lux Light Meter Pro
Lux Light Meter Pro

Measure Luminosity in Lux & FC

🔧 Utilities

(5K)

Free
In-App PurchasesWith Ads
See developer apps

User experience

🐞

Reported Bugs

3 issues

Freezing and crashing on certain devices

Bug

Incorrect frequency readings in Octave RTA mode

Bug

Inability to switch between microphone sources

Bug
✨

Requested Features

4 requests

External microphone support

Feature

Ability to save and compare measurement results

Feature

More detailed instructions and tutorials

Feature

Vertical orientation option

Feature

FAQ

What does the Audio Spectrum Analyzer dB RTA app do?

This app provides advanced audio spectrum analysis and sound level metering. It helps users understand the frequency distribution and decibel levels within an audio signal, making it useful for tuning audio systems and measuring ambient noise.

What are the key features of this spectrum analyzer?

Key features include an Octave Band Real-Time Analyzer, FFT Plot for Fast Fourier Transform analysis, an integrated Sound Level Meter with dB-A weighting, and a Multispectral Harmonic Analyzer. It also offers advanced FFT settings like adjustable size, peak hold, and various window functions.

Is this app free to use?

The app is free to download and use, but it offers in-app purchases. This means certain advanced features or functionalities may require a purchase to unlock.

Who would benefit from using this app?

This app is designed for a range of users, including amateur hi-fi enthusiasts, professional A/V engineers, and anyone looking to tune their home cinema, car stereo, or subwoofers. It's also useful for measuring ambient noise levels in various real-life scenarios.

What kind of audio analysis can I perform with this app?

You can perform detailed audio analysis including real-time spectrum analysis with octave band modes (full, 1/3, 1/6), Fast Fourier Transform (FFT) analysis with adjustable parameters, and sound level measurements. The app can also track maximum and minimum frequency peaks and display harmonic analysis.