Clark School Home UMD

ISR News Story

Espy-Wilson receives NSF grant for digital speech forensics


Professor Carol Espy-Wilson (ECE/ISR) is the principal investigator for a three-year, $500K National Science Foundation grant, “Nonintrusive Digital Speech Forensics: Source Identification and Content Authentication.”

With the advent of the digital era, virtually every speech communication system acquires, creates, transmits, stores, and processes information in digital form. Moreover, current digital media editing software allows malicious amateurs to perform imperceptible alterations to digital content. This creates a serious threat to the “knowledge life cycle.” When hearing is no longer believing, the process of going from data to information, knowledge, understanding and, finally, to decision or action is severely compromised.

To help reduce this threat, Dr. Espy-Wilson will develop theories, methods and tools for extracting and visualizing evidence from digital speech content to identify the media source and authenticate content.

Her research will be based on the important paradigm of nonintrusive media forensics. Unlike digital watermarking techniques, the approach assumes no explicit prior knowledge about the original speech signal. The underlying hypothesis of the methodology is that physical devices, along with their associated signal processing chain, leave behind intrinsic fingerprint traces in the speech signal that are detectable by statistical methods.

Related Articles:
Espy-Wilson named to NIH advisory council
Espy-Wilson delivers plenary address at College Board conference
Engineering systems for mental health work by Espy-Wilson, Resnik, Vaughn-Cooke featured in Newsweek
OmniSpeech, Espy-Wilson mentioned on "Washington Business Report"
Carol Espy-Wilson is PI for multi-site NSF speech recognition grant
Espy-Wilson, Bergbreiter receive ADVANCE Seed Grants
Espy-Wilson gives keynote address at University of Michigan
Carol Espy-Wilson named 2012-2013 Distinguished Scholar-Teacher
Espy-Wilson appointed ADVANCE Professor for Women Faculty of Color
Espy-Wilson named to NIH advisory board

September 18, 2009


Prev   Next

 

 

Current Headlines

Banis wins poster design award at Global Grand Challenges Summit

ISR faculty leading bio-inspired robotics and transportation electrification REUs

Alum Leonard Petnga to join University of Alabama Huntsville faculty

William Regli named sixth director of ISR

Smela named Clark School Associate Dean for Faculty Affairs and Graduate Programs

Ulukus is PI for new NSF information-theoretic physical layer security grant

ECE Ph.D. Student Mallik Wins Kulkarni Fellowship

John Baras receives AACC Richard E. Bellman Control Heritage Award

Nima Ghalichechian begins Ohio State tenure-track position 

UMD Takes Second Place in NASA RASC-AL Competition

News Resources

Return to Newsroom

Search News

Archived News

Events Resources

Events Calendar