***** "I use this app to detect sound feedback problems on live show and it became helpful and practic." FFT Plot 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. Feature Highlights: ● FFT Size (2048 to 16384 points) ● Fast, Slow and Infinite Averaging ● Window function (Hamming, Hann, Rect) ● Peak Frequency detection ● Linear and Logarithmic scale ● Pan to adjust visible dB range ● Draggable cursors ● Retina display and iPhone 6 ready NOTE: FFT Plot is also available within our Spectrum Analyzer suite, which also includes Octave RTA, Spectrograph and Tone Generator modules. If you need more than just FFT, please search for "Spectrum Analyzer" app. Audio credits: "Evening Birdsong" and "Cuckoo" by Benboncan