Recent Developments in Voice Biometrics: Robustness and High Accuracy   [open pdf - 1MB]

"During the previous few years, voice biometrics technology (aka speaker recognition) has overcome many obstacles that prevented its wide, trusted use. In particular, the research community has tackled difficult speaker biometrics problems in the context of defense and intelligence research programs. In this paper, we review the latest innovations in speaker recognition that resulted from two programs and show how these advancements support the case for adopting the use of speaker recognition by the community of biometrics users. […] In this work, we highlight SRI's innovations achieved during recent defense- and intelligence-related programs. First, we review the robustness of systems to noisy and reverberant environments as demonstrated under the IARPA [Intelligence Advanced Research Projects Activity] BEST [Biometrics Exploitation Science & Technology] program. Further, we show how speaker recognition technology has overcome the very hard challenges posed by the DARPA [Defense Advanced Research Projects Agency] RATS [Robust Automatic Transcription of Speech] program, which is focused on achieving high accuracies for speaker - and language-identification problems in extreme channel-degraded environments, such as that of push-to-talk radios. Finally, we highlight our pioneering work in mitigating the effect of audio compression on speaker recognition, showing results on a variety of codec families."

Report Number:
Homeland Security Affairs (April 2014), supplement 6
2013 by the author(s). Posted here with permission. Documents are for personal use only and not for commercial profit.
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Homeland Security Affairs Journal: http://www.hsaj.org/
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