Task Descriptions
What we do and how we do it.
Audio
Authentication (Tape Tampering)
To distinguish original recordings from copies, to
identify equipment used to make recordings, and to detect intended or
unintended alterations such as physical or electronic edits, erasures, and
over-recordings.
Audio
Enhancement
Enhances speech intelligibility to clarify
identification of "near" and "far" voices, and analyze non-speech sounds
(audio, video, or both) important to civil and criminal cases.
Video Tape
Enhancement / Authentication
Video tape enhancement and authentication is used
to enhance photographs and real-time or time lapse video recordings for the
purpose of improving identification of people and other physical objects
recorded. Video tapes can also be examined for possible editing and signs of
alteration.
Voice
Identification / Elimination
Voice identification is used to identify or
eliminate individual talkers based upon aural (listening) and spectrographic
(visual) comparisons of recorded material. Transcripts can be reviewed for
clarification of disputed conversations.
Questioned
Document Examinations
To answer questions concerning authorship of
questioned writings: to determine the relative dates of preparation of
evidential documents; and to determine the nature of any material alteration
or deletions.
Testing of
Security Recording Equipment
Security VCR’s have a number of addition
features specifically designed for the industrial marketplace or for those
institutions that require 24 hours a day video\audio surveillance.
