RTA Audio Free for iOS

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 OctaveLogarithm frequency scale Fixed frequency range (20 - 20kHz)Tone scale view C- H (A = 440Hz)Peak hold graphPeak average graphRMS average graphPointer functionPeak and RMS input meterFreeze functionSave screenshot function Recording specification Audio session mode - measurementSoftware input gain controlHardware input gain controlSample rate: 48000 HzBit depth: 16bitChannel: 1(mono)Frequency range: 6Hz - 24kHzDynamic range: -100dB - 0dB FFT (Fast Fourier Transform) specification Frame size: 8192Overlap: 75%Smoothing Window: Blackman-HarrisDouble precision calculationHardware acceleration