••• Real-time analyzer - RESOLUTION 1/2 Octave •••

This tool gives you the ability to analyze the quality of your audio system in an accurate way and to find out the sound intensity your system emits at different frequencies. Easily find frequency swings, then set up your equalizer to take them into account based on the information provided by the app. RTA Audio analyzes the signal from a microphone or the line-in input.

••• Features •••

Resolution: 1/2 Octave
Logarithm frequency scale
Fixed frequency range (20 - 20kHz)
Tone scale view C₀- H₈ (A₄ = 440Hz)
Peak hold graph
Peak average graph
RMS average graph
Pointer function
Peak and RMS input meter
Freeze function
Save screenshot function

••• Recording specification •••

Audio session mode - measurement
Software input gain control
Hardware input gain control
Sample rate: 48000 Hz
Bit depth: 16bit
Channel: 1(mono)
Frequency range: 6Hz - 24kHz
Dynamic range: -100dB - 0dB

••• FFT (Fast Fourier Transform) specification •••

Frame size: 8192
Overlap: 75%
Smoothing Window: Blackman-Harris
Double precision calculation
Hardware acceleration

What’s New

Version 2.0.3

FIX microphone access problem.
Minor updates.

Ratings and Reviews

3.0 out of 5
16 Ratings

16 Ratings

NightHawkCA ,

Mic permissions issue .. renders app unusable

I just recently reinstalled this, as it was the best RTA app for my iPad mini. Now I, a paying customer, am getting an error message saying “user has explicitly denied microphone access” or something along those lines. Please let us know how to fix it? Thank you

danbanco ,

Microphone no longer accessible

I receive an alert stating that the user has denied access to the microphone. However, the microphone privacy setting within the iPhone settings does not show a request for access. There is no way to allow microphone access if the app no longer request access.

The app performed phenomenally up until this issue appeared.

Is there anyway to resolve this?

JimBobPrime ,

Amazing Audio Tool

RTA audio Pro has been an amazing app. Lets you see the sounds you hear, even the low frequency ones. The only reason I don’t give it a five star review is that I can’t export what I see as a movie video.

App Privacy

The developer, New Ball s.r.o., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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