Runs the song and the scoreboard. Use the biggest screen in the house.
Your phone is the microphone. Nothing you sing leaves the device — only the score does.
The instrument view. No room and no scoring — just your voice, measured.
Processing is off: no echo cancellation, no noise suppression, no automatic gain. The analyser needs the raw signal.
Three seconds silent to find the noise floor, then four seconds of one held note to set your reference level.
Pitch is plotted on a semitone ladder. Everything is measured in cents, because that is how pitch is heard.