Audiomerics Analyser Lite vs Frequency Detector Tool

Audiomerics Analyser Lite is a special adapted version of the professional Audiomerics Analyser for smaller screens of mobile phones - limited to 2 input channels. It contains a Spectroscope showing FFT-spectrum over time in high resolution due to re-assignment algorithm, a filter bank-based Spectral Analyser, a Vector Audioscope, frequency measurement and VU-Meter. The App analysis the signal from the iPhone's microphone. An USB audio interface connected to the phone can also be used (limited to 2 channels). On IOS devices there is no way to analyze playback signals, so the app is limited to said signals from microphone(s) or USB audio interface. With certain interfaces (e.g. RME Audio) you can setup a loopback function to mirror playback-signals.

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.