••• 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

2.8 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?

Mechanical Nature! ,

I knew something was different.

So my perception in this version, is that it no longer remembers my gain settings and resets them every time... Um, this is no good. Otherwise this has replaced the faulty Andrew Smith app I used for years before they screwed that one up. At least the free version. Cheers


New Ball s.r.o.
2.5 MB

Requires iOS 12.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2018 New Ball s.r.o.
In-App Purchases
  1. Upgrade to full version $6.99


  • Family Sharing

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

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