File(s) under permanent embargo

Robustness and embedding capacity enhancement in time-spread echo-based audio watermarking

conference contribution
posted on 2016-10-19, 00:00 authored by Iynkaran NatgunanathanIynkaran Natgunanathan, Yong XiangYong Xiang, Lei PanLei Pan, P Chen, D Peng
In echo-based audio watermarking methods, poor robustness and low embedding capacity are the main problems. In this paper, we propose a novel time-spread echo method for audio watermarking, aiming to improve the robustness and the embedding capacity. To improve the robustness, we design an efficient pseudonoise (PN) sequence and a corresponding decoding function. Compared to the conventional PN sequence used in time-spread echo hiding based method, more large peaks are produced during the autocorrelation of the proposed PN sequence. Our decoding function is designed to utilize these peaks to improve the robustness. To enhance the embedding capacity, multiple watermark bits are embedded into one audio segment. This is achieved by varying the delays of added echo signals. Moreover, the security of the proposed method is further improved by scrambling the watermarks at the embedding stage. Compared with the conventional time-spread echo-based method, the proposed method is more robust to conventional attacks and has higher embedding capacity. The effectiveness of our method is illustrated by simulation results.

History

Event

IEEE Industrial Electronics and Applications. Conference (11th : 2016 : Hefei, China)

Pagination

1536 - 1541

Publisher

IEEE

Location

Hefei, China

Place of publication

Piscataway, N.J.

Start date

2016-06-05

End date

2016-06-07

eISSN

2158-2297

ISBN-13

9781509026050

Language

eng

Publication classification

E Conference publication; E1 Full written paper - refereed

Copyright notice

2016, IEEE

Title of proceedings

ICIEA 2016: Proceedings of the IEEE 11th Conference on Industrial Electronics and Applications