search

UMD     This Site






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:
Vishnubhotla, Espy-Wilson granted patent for improving speech extraction
Espy-Wilson named International Speech Communication Association Fellow
Espy-Wilson's technology included in new Alcatel MOVE TIME smart watch
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

September 18, 2009


«Previous Story  

 

 

Current Headlines

Bridging the Gap between Microelectronics, Biological Systems

Alumna Chakrabarti Named Distinguished Alumnus of IIT Kharagpur

‘Smart Marbles’ hold promise for better outcomes from bioreactors

Cable, Symposium Speakers Featured in Project Management Podcast

Dinesh Manocha, developer of geometric and scientific algorithms, is new ISR affiliate

Electric car batteries souped-up with fluorinated electrolytes for longer-range driving

Adam Porter, Fraunhofer CESE director, joins ISR as affiliate faculty

Ulukus Named ECE Associate Chair for Graduate Studies

Digital preservation and big data researcher Richard Marciano becomes ISR affiliate

New affiliate faculty Mark Fuge is expert in machine learning and artificial intelligence

 
 
Back to top  
Home Clark School Home UMD Home