*Security and Privacy From a Legal, Ethical, and Technical Perspective*


algorithm has blind detection and has admirable performance against the attacks. A discrete wavelet transform (DWT) represents a data points regarding wavelet at various frequencies. In this chapter, hardware architecture of DWT-based digital audio watermarking is also developed which is used for real-time applications. Digital audio watermarking used in many applications like ownership protections, Tamper detection and localization, and media forensics. Above analysis shows that proposed algorithm gives good SNR with higher inaudibility and NC is also almost equal to 1. Various attacks are considered to check the robustness of the algorithm.

*Hardware Implementation of Audio Watermarking Based on DWT Transform*

*DOI: http://dx.doi.org/10.5772/intechopen.86087*

This algorithm produces excellent resistance to many attacks. The FPGA prototyping is done for hardware performance measurement for real-time

application.

**Author details**

National Institute of Technology, Jaipur, Rajasthan, India

\*Address all correspondence to: amjoshi.ece@mnit.ac.in

provided the original work is properly cited.

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,

Amit M. Joshi

**209**

## **Table 2.**

*Comparison with related audio watermarking.*


### **Table 3.**

*FPGA report for device utilization.*


### **Table 4.**

*FPGA report for resource utilization.*


### **Table 5.**

*Synthesis report for timing analysis.*

output is defined using IEEE 754 SP format because of complex calculations during DWT and inverse DWT. **Tables 3** and **4** provides the hardware utilization of targeted FPGA, and **Table 5** has the total computation delay. During synthesis process, the proposed audio watermarking scheme is validated for the real-time performance by FPGA prototyping.
