INTERSPEECH 2011
12th Annual Conference of the International Speech Communication Association

Florence, Italy
August 27-31. 2011

Privacy Preserving Speaker Verification Using Adapted GMMs

Manas A. Pathak, Bhiksha Raj

Carnegie Mellon University, USA

In this paper we present an adapted UBM-GMM based privacy preserving speaker verification (PPSV) system, where the system is not able to observe the speech data provided by the user and the user does not observe the models trained by the system. These privacy criteria are important in order to prevent an adversary having unauthorized access to the user's client device from impersonating a user and also from another adversary who can break into the verification system can learn about the user's speech patterns to impersonate the user in another system. We present protocols for speaker enrollment and verification which preserve privacy according to these requirements and report experiments with a prototype implementation on the YOHO dataset.

Full Paper

Bibliographic reference.  Pathak, Manas A. / Raj, Bhiksha (2011): "Privacy preserving speaker verification using adapted GMMs", In INTERSPEECH-2011, 2405-2408.