Speech watermarking: a solution for authentication of forensic audio digital recordings. (arXiv:2203.02275v1 [cs.CR])

In this paper we discuss the problem of authentication of forensic audio when
using digital recordings. Although forensic audio has been addressed in several
papers the existing approaches are focused on analog magnetic recordings, which
are becoming old-fashion due to the large amount of digital recorders available
on the market (optical, solid-state, hard disks, etc). We present an approach
based on digital signal processing that consist of spread spectrum techniques
for speech watermarking. This approach presents the advantage that the …

authentication digital forensic recordings