An electronic sound monitor for use as a stethoscope, a signal treatment and a method for treating the signals using the monitor. The sound monitor includes at least one transducer for transforming vibrations to electrical signals, a filtering, A/D- and D/A-converter, amplifier, a processor, a sound chamber in which at least one transducer for transforming electrical signals to sound is arranged, and a sound channel opening into the sound chamber. The sound channel being adapted to forward the sound from the sound chamber through an opening connecting the sound channel with the ambient air.
