BMA Spectrum Analyzer vs Frequency Detector Tool

BMA Spectrum Analyzer turns your iPhone or iPad into a professional real-time audio spectrum analyzer. Built around a precision FFT engine with a retro instrument aesthetic, it delivers instant visual feedback on any sound source - from mixing and mastering to live events and room acoustics. HOW IT WORKS Point the microphone at any audio source and watch the frequency spectrum come alive across the full 31.5 Hz – 20 kHz range. The METER panel tracks AVG, PEAK, CREST and MAX levels with frequency readout in real time. FREE • Real-time spectrum display • 2 band configurations: 7 and 11 bands • 2 visual themes • Live METER with AVG, PEAK, CREST and MAX • Tap-to-read frequency and level PRO - ONE-TIME PURCHASE • Full controls: fall rate, hold time and compression • All 5 band configurations: 7, 11, 14, 21 and 31 bands • All 11 visual themes • Peak hold display, brightness mode and linear scale • Spectral envelope (ENV) average curve overlay • FFT resolution selector • High-precision dual 4096-point FFT for low frequencies • SPL calibration offset for live sound measurement SPL CALIBRATION Installing sound for a live event or venue? Calibrate against a reference SPL meter and the app displays calibrated dB SPL readings in the METER panel - useful for system checks, venue tuning and compliance measurements. DESIGNED FOR Musicians - Audio Engineers - Live Sound Technicians - Studio Producers - Educators - Audiophiles PRIVACY All audio processing runs entirely on-device. Microphone audio is never stored or transmitted. No account required.

Frequency Detector Tool is a free, elegant frequency and musical-key analyzer for producers, mixing engineers, sound healers, and the musically curious. Type in any frequency in Hertz — like 315, 2.5k, or 29834 — and instantly see: The musical note it maps to (e.g. A4 = 440 Hz) How many cents sharp or flat it is Whether it's IN KEY for the key you've selected The nearest "cut candidate" — the closest out-of-key frequency Vocal context notes to guide your EQ decisions Pick your key from all 12 tones and the whole analysis updates instantly, showing the in-key snap, the nearest cut, and vocal-range context (like the "Mud Zone" around 250–400 Hz). Open the full frequency chart to see every note across octaves 0–7, laid out for boosting and cutting in your chosen key — scroll to explore the entire spectrum. Also included: Clickable Solfeggio frequencies (432, 528, 639, 741, 852, 963) with a note on what each is associated with "Did You Know?" music-theory facts A calm, sacred-geometry inspired interface Frequency Detector Tool is completely free — no ads, no subscriptions, no catch. It's my first app, made with love. If it helps you, an optional donation on eyeheru369.com supports more free tools. Works on iPhone, iPad, and Apple Vision Pro.