Disclosed is an electronic woodwind instrument for that allows adjusting the behavior thereof to be adjusted to approach as much as close as possible to that of an acoustic woodwind instrument. The instrument includes a mouthpiece, a body provided with keys and a channel connected to the mouthpiece and leading to the outside of the instrument, at least one pressure sensor configured to deform under the action of breath, and an electronic processing system connected to the keys and the pressure sensor and configured to produce musical notes according to the handling of the keys and the measurement of breath. The channel includes an inlet tube, an outlet tube and an intermediate chamber, the elements being configured to pressurize the chamber when the musician blows into the mouthpiece. The chamber includes a measuring port on to which the pressure sensor is connected.