FormantScope

FormantScope analyzes your voice in real time on device: it shows fundamental frequency (F0), the first and second formants (F1 and F2), and input level, with short history charts for practice and coaching.

• Live numeric readouts for F0, F1, F2, and level • Dual-series charts with independent scales • Stability and gating to reduce flicker during continuous phonation • Optional WAV export to a folder you choose • iPhone, iPad, and Mac; microphone is used only for local analysis • No account required; open-source project (see support link)

FormantScope does not send your microphone audio to the developer for processing. Optional recordings are saved only where you select on your device.