Subscribe to our newsletter:

RTA Audio Free

iPhone / iPad
  • Utilities
  • Music
I want this app
Download from AppStore

••• 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