Author
University of Technology-Iraq, 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 represents the
watermark for the speech, is 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 content-fragile watermarking based on digital speech data. Then, the suggested
feature based authentication scheme is develop and the results from the evaluation
are presented. It shows that the suggested scheme is successful for combining
speech and speaker watermark authentication.
Keywords
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