Usable Speech Assignment for Speaker Identification under Co-Channel Situation
Wajdi Ghezaiel, Amel Ben Slimane, Ezzedine Ben Braiek · International Journal of Computer Applications · 2012
Usable speech criteria are proposed to extract minimally corrupted speech for speaker identification (SID) in cochannel speech.In co-channel speech, either speaker can randomly appear as the stronger speaker or the weaker one at a time.Hence, the extracted usable segments are separated in time and need to be organized into speaker streams for SID.In this paper, we focus to organize extracted usable speech segment into a single stream for the same speaker by speaker assignment system.For this, we develop model-based speaker assignment method based on posterior probability and exhaustive search algorithm.Evaluation of this method is performed on TIMIT database.The system is evaluated on cochannel speech and results show a significant improvement.