Joint Position-Pitch Estimation for Multiple Speaker Scenarios

This paper presents an enhancement of a recently proposed method of joint pitch and direction of arrival extraction for speaker localization. We propose a new pre-processing module inspired by auditory system in order to estimate the multiple pitch and position values for multi-speaker scenarios. A detailed analysis of the module leads to the conclusion that the addition of the module in position-pitch estimation (PoPi) algorithm gives an intuitive representation of all active speakers in terms of their respective position and pitch estimates. The proposed method is tested on real-world recordings. The results show the power of the method in determining the accurate pitch and position estimates for multi-speaker scenarios.