Spektral Mobile

Spektral is a professional real-time audio frequency analyser for sound engineers. Identify feedback frequencies on the go and ring out PA systems with your iPhone or iPad.

TWO VIEWS, ONE WORKFLOW • RTA (Real-Time Analyser) — live spectrum display with logarithmic frequency scale, 20Hz to 20kHz • Spectrograph — scrolling time-frequency heatmap where feedback shows as persistent bright horizontal lines

TOUCH-OPTIMISED • Horizontal pinch to zoom the frequency axis • Vertical pinch to zoom the dB range • Drag to pan when zoomed • Tap to place cursor with sub-bin frequency accuracy • Double-tap to reset all zoom and pan

PRECISION TOOLS • 4096-point FFT for fine frequency resolution • Parabolic interpolation for accurate cursor readings • Peak hold with smooth decay • Adjustable smoothing and frame averaging • Musical note display on peaks and cursor

BUILT-IN TOOLS • Pink noise generator for reference output • Soundcheck mode with automatic peak identification • Snapshot compare for A/B analysis

DESIGNED FOR THE STAGE • Full-screen dark interface for low-light environments • Works in portrait and landscape • Uses the built-in microphone or any connected audio interface

No subscriptions. No account required. No internet connection needed.