SpectralScan Audio Analyzer vs RTA01

SpectralScan turns your phone into a professional audio analysis tool. Real-Time Analyzer (RTA) Visualize your acoustic environment live with a high-resolution frequency spectrum. Adjust smoothing, peak hold, and frequency range on the fly. Sine Sweep Measurements Run a precision sine sweep and capture the full frequency response and impulse response of any speaker, room, or audio system. Spectrogram Watch frequency content evolve over time with a scrolling waterfall display. Compare & Export Save multiple measurements, overlay them for comparison, and export as CSV or PNG. Pro features: multiple sweep measurements, fine octave smoothing, peak frequency display, and additional color themes and more coming.

RTA is a pocket-sized real-time spectrum analyzer built for audio engineers and PA operators. FEATURES - Switchable resolution: 31, 63, or 127 bands - A/C/Z frequency weighting (IEC 61672-1 compliant) - High-precision peak detection using raw FFT data with parabolic interpolation - Peak hold - Calibration offset (for matching a reference measurement device) - Tap any band to see its exact frequency and dB level - Upside-down mode for inverted mounting - Multiple color themes (Black / White / Neon / B&W) NO ADS, NO PRESSURE This app has no interruptive ads. If you find it useful, you can support development with an optional tip. Handy for quick frequency balance checks and finding feedback points in the field. Note: readings are for relative reference only and are not guaranteed to match a calibrated measurement instrument.