Speaker comprising an electronic detection device for detecting a wall

A speaker comprising:

• at least one loudspeaker able to emit an emitted audio signal,
• a plurality of microphones each able to acquire a received audio signal,
• if a wall is present in a speaker environment, the received audio signal comprises the emitted audio signal that has been reflected off the wall, and
• an electronic detection device of the wall connected to each microphone,
• the electronic detection device comprising:
• a first calculation module able to calculate a spectrogram of the directions of arrival of the audio signal received by the speaker, from the received audio signal acquired by each of the microphones,
• characterized in that the electronic detection device further comprises:
• a second calculation module able to calculate an energy level of the received audio signal acquired from each microphone, and
• a determination module able to determine the presence of the wall or the absence of the wall in the speaker environment by applying a neural network model to the spectrogram of the directions of arrival and to the determined energy levels.