Free
About
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.
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What's New in FormantScope
1.1
June 13, 2026
English (What's New in This Version) This update refines the live chart and rounds out the interface: • Friendlier chart axes — ticks now use clean, evenly spaced values and always include the range endpoints. • New time axis along the bottom, with an adjustable time window (2–20 seconds). • Each F0 / F1 / F2 readout now shows a running average for the current window. • Various polish and stability improvements.
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