In this paper, we present a supervised method for speaker localisation in an echoic environment using a microphone array. An audio source is located among a set of areas centered on each microphone. Each area is characterized by a multi-dimensional Gaussian Mixture of the propagation channel between the source and several pairs of microphones. The distance between the sensors has been chosen in order to keep using both level difference and phase information between the microphones. The evaluation results show that the algorithm reaches very good localisation rate and does not depend on the speaker.