Authenticity verification of audio signals based on fragile watermarking for audio forensics

作者：

Highlights：

• A model for digital audio authenticity by means of fragile watermarking.

• Authenticity for audio forensics purposes.

• The mark is expanded through Orthogonal Variable Spreading Factor codes.

• The system can detect: cropping, replacement, additive noise and amplitude reduction.

• In tampering detection, Kappa index is around 0.95, specificity and sensitivity are close to 1.

摘要

•A model for digital audio authenticity by means of fragile watermarking.•Authenticity for audio forensics purposes.•The mark is expanded through Orthogonal Variable Spreading Factor codes.•The system can detect: cropping, replacement, additive noise and amplitude reduction.•In tampering detection, Kappa index is around 0.95, specificity and sensitivity are close to 1.

论文关键词：Audio authenticity,Fragile watermarking,Tampering detection,Imperceptibility,Audio forensics

论文评审过程：Received 26 August 2016, Revised 14 August 2017, Accepted 1 September 2017, Available online 6 September 2017, Version of Record 11 September 2017.

论文官网地址：https://doi.org/10.1016/j.eswa.2017.09.003