Octave RTA + FFT Analyzer + Spectrograph + Tone Generator

Spectrum Analyzer for iOS is a powerful real-time audio analysis app. Designed with musicians and recording engineers in mind, it can also be used by anyone interested in the world of sound. Ideal for room tuning or speaker tuning, the app enables portable, precision audio measurement and visualization.

Available on the App Store

Spectrum Analyzer harnesses the computational and graphical power of its host iDevice to provide precision, real-time readouts that are smooth and responsive. It has been designed from the ground up to take full advantage of the newest features and capabilities of iOS 6. It is a completely integrated app - there are no plug-ins or in-app purchases available or required.

Feature Highlights:

Audio input may be acquired via the built-in microphone or an external measurement microphone. For best results we recommend using a calibrated measurement microphone connected via USB audio interface or iPhone dock connector. This allows for high precision and flat frequency response, as well as for stereo input.

For the iPad, we recommend using an external USB audio interface connected via the iPad Camera Connection Kit. This allows for standard audio equipment to be connected to the iPad, as well as for dual channel input. We have tested devices as Griffin iMic, Numark STEREO|iO, Behringer UCA202 and they all provide line level input and some of them would also have line/mic level switch.

[10/03/2013] Spectrum Analyzer app is now compatible with the MicW i436 calibrated measurement microphone complying with the IEC 61672 Class 2 sound level meter standard!