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Binladen tape created by impostor { November 29 2002 } Original Source Link: (May no longer be active)    http://www.guardian.co.uk/afghanistan/story/0,1284,850823,00.html http://www.guardian.co.uk/afghanistan/story/0,1284,850823,00.html 3.30pm update Bin Laden tape 'created by impostor' Staff and agencies Friday November 29, 2002 A group of Swiss researchers said today that an imposter almost certainly created the recent audio tape attributed to terrorist leader Osama bin Laden. In a report aired on French television last night, the Lausanne-based Dalle Molle Institute for Perceptual Artificial Intelligence (IDIAP), said it was 95% certain the tape does not feature Bin Laden's voice. The review of the tape was commissioned by France-2 television. IDIAP's director, Herve Bourlard, said the institute compared the voice on the tape - first aired two weeks ago on Arabic television network Al-Jazeera - with some 20 earlier recordings attributed to bin Laden. IDIAP researcher Samy Bengio told Swiss RSR radio: "In order to have an irrefutable conclusion, you would need around 100 recordings of Bin Laden. They only had 20, and of poor quality." In the tape, the speaker refers to recent terrorist strikes in Moscow and Bali. If the voice could be conclusively proven as Bin Laden's, it would provide the first solid evidence that the al-Qaida leader had survived the US bombing of Afghanistan. US experts have maintained the tape will probably never be fully authenticated because its poor quality defies complete analysis by even the most sophisticated voice print technology. But US experts who have heard it generally support the conclusion of US law enforcement officials that it probably is Bin Laden speaking. Professor Bourlard, a voice recognition expert, has worked extensively with the International Computer Science Institute at Berkeley, California. He has also worked as co-editor-in-chief of the Speech Communication journal with ICSI director Nelson Morgan, and as an adviser to the European commission. He is the author or co-author of 150 research papers and two books. On its website, the IDIAP describes itself as a semiprivate research institute affiliated with the Swiss Federal Institute of Technology, a highly respected organisation, and the University of Geneva. It carries out research in the fields of speech and speaker recognition, computer vision and machine learning. Officials at the institute could not be reached for comment late yesterday.

Binladen tape created by impostor { November 29 2002 } Daschle doubts progress { November 14 2002 } Nov recording threat { November 13 2002 } Nov tape proves alive { November 13 2002 } Tape authentic Us checks recording Files Listed: 6

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