Microphone

Tracks the volume and pitch of sound coming into the device microphone.

The first call to mic.start asks the user for permission to use the microphone. While the microphone is running, other sounds keep playing through the speaker.

mic.start()

Start tracking input from the device microphone

function setup()
    mic.start()
end

function draw()
    background(40)
    text(string.format("%.2f Hz", mic.frequency), WIDTH/2, HEIGHT/2)
end

mic.stop()

Stop tracking input from the device microphone. The microphone also stops automatically when the project exits

amplitude: number [readonly]

The volume of sound coming into the microphone. Silence is close to 0, and a loud, full-scale sound reaches about 2

Returns 0 when the microphone is not running

frequency: number [readonly]

The pitch of sound coming into the microphone, in hertz. Keeps its last value when the input goes quiet or has no clear pitch

Returns 0 when the microphone is not running