Words4EV.speak 1.0 (en)

Hooting is a sound corresponding to two near lines, with a fast amplitude modulation rate (≈ 10 Hz) very similar to beating and varying with vehicle speed. Its frequency may change from one kind of hooting to another, going from low-frequency to mid-frequency. Its emergence in comparison with a broadband noise like Rolling makes it identifiable. This sound is constant in frequency, amplitude and modulation velocity, which makes it exhausting. Hooting is produced by the cavity mode of a tire.