Steadier notes, and one control fewer

A tuner is only as good as its idea of which note you are singing. This round of work went into the pitch tracker: deciding when a voice is really there, following it through fast passages, and confirming a jump before acting on it. A strong overtone is no longer mistaken for the note itself.

We also made a product decision. CX TUNE had a Formant knob that was never switched on. Rather than ship a control that does nothing, we removed it. CX TUNE still keeps the voice’s own formants while it corrects pitch, so voices do not turn chipmunk-like.

With Formant gone, Natural and Hard Tune now share one sliding mode selector.