Wednesday, September 30, 2009

Human Hearing System: When an ear witness decides the case

The New York Times (USA) has an excellent article on human speech and hearing and how the vision system interacts with hearing.


Filtering: Video clip explains Auto-Tune software

Nova's ScienceNOW by PBS (Public Broadcasting Service, USA) has an informative video clip on Andy Hildebrand's pitch-correction software called Auto-Tune. This audio filtering technology is used by professionals to correct mis-sung notes both in the studio and during live performances. It has been compared to Photoshop for voices.


Saturday, September 26, 2009

Audio: Laser microphone patented reports on a new type of microphone designed and patented by David Schwartz. The principle behind the design involves a laser beam measuring the vibrations of smoke particles in a tube as they are deflected by sound. There are two interesting video clips on the page - one showing a demonstration of the second prototype and the other showing the components of the device.


Biometrics: FBI to migrate to multi-modal biometrics

COMPUTERWORLD reports on the FBI (Federal Bureau of Investigation, USA) announcement at the Biometric Consortium Conference that it will migrate from its IAFIS fingerprint database to a new multi-modal biometric database that will include DNA records, 3-D facial imaging, palm prints, and voice scans.