Author
Department of Computer Science & Information System, University of Technology-Baghdad, Iraq
Abstract
A watermarking technique for speech content and speaker authentication
scheme, which is based on using abstracts of speech features relevant to
semantic meaning and combined with an ID for the speaker is proposed in
this paper. The ID which represents the watermark for the speaker, is
embedded using spread spectrum technique while the extracted abstracts of
speech features are used to represent the watermark for the speech, embedded
in the original speech file using secret key. The abstracts speech feature is
implemented using B-spline curve interpolation. The paper provides a
background knowledge for the concept of speaker watermarking and contentfragile
watermarking based on digital speech data. Then, the suggested
feature based authentication scheme is developed and the results from the
evaluation are presented. Show that the suggested scheme is successful in
combining speech and speaker watermark authentication.
Keywords
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