Robust Speaker Verification in PBX telephony systems

DISA is one of the most useful IP-PBX services in enterprise communication markets. DISA permits outside users logging into the PBX and using PBX service just like the system extensions. This report provides an overview of a Speaker Verification system architecture builds primarily on the top of DISA service to act as a robust authorization mechanism. The system was developed as a part of research efforts of Intelligent Systems team in AVA Communication Industries Co. The performance of applied technique evaluated under consideration of real world applications challenging it with channel and environment related problems such as background noise, channel distortion, and mismatches between data acquiring devices. The speaker verification system provides performance of 90.48% using limited data under noisy conditions

Keywords:

Speaker Verification , Speaker Identification , Direct Inward System Access , PBX Telephony Systems , Gaussian Mixture Models