Audio frequency reference app Audio frequency reference app

Real time audio spectrum analyzer for iOS, with an eye on simplicity, speed and precision. Fast and smooth operation with adjustable parameters.

Use app
up to 1/96 oct
up to 1/96 oct
Fast - response fraction octave plot. Frequency resolutions from as low as 1 oct up to 1/48 oct (1/96 on iPad) are available. Internally, proprietary frequency weighting technique is applied for each band to achieve optimum frequency/magnitude calculations.
Hz/dB readout
Hz/dB readout
Rollover Your mouse/finger on the graph and you'll see corresponding frequency in Hz and magnitude in dB. Always have Your prominent frequencies under control! Slide on scales to move the plot, zoom it with Your two fingers in any direction.
clear & easy
clear & easy
Minimalistic GUI design helps concentrate on Your work, not the device. You can also find some tweaks and fine - tunings in Settings, accessible using three-dot button.
pro audio - specific
pro audio - specific
Equally great both for quick reference and for long - term live spectra display. Supports multiple FFT sizes, adjustable averaging time and bandwidth, selectable mic input, selectable plot color. Supports iPad/iPhone built-in audio measurement mode for greater precision with built-in mics

welcome to spectrum eye