By Nedeljko Cvejic, Tapio Seppanen
"Digital audio watermarking has been proposed as a brand new and replacement technique to implement highbrow estate rights and safeguard electronic audio from tampering. electronic Audio Watermarking strategies and applied sciences: purposes and Benchmarks is a entire compilation of the main theoretical frameworks, examine findings, and sensible functions. With inclusive assurance of the main authoritative study within the sector, electronic Audio Watermarking concepts and applied sciences: purposes and Benchmarks will function an essential connection with researchers and practitioners in various disciplines, together with engineering, details know-how, and electronic audio. With price to a various variety of clients, this best Reference resource matches libraries in different settings."
Read or Download Digital Audio Watermarking Techniques and Technologies: Applications and Benchmarks PDF
Similar security & encryption books
Army and intelligence leaders agree that the following significant warfare isn't more likely to be fought at the battleground yet in cyber area. Richard Stiennon argues the period of cyber conflict has already started. contemporary cyber assaults on usa executive departments and the Pentagon corroborate this declare. China has compromised electronic mail servers on the German Chancellery, Whitehall, and the Pentagon.
Enforce a good defense Metrics undertaking or software IT defense Metrics presents a entire method of measuring hazards, threats, operational actions, and the effectiveness of knowledge security on your association. The publication explains the right way to decide on and layout powerful size techniques and addresses the knowledge necessities of these techniques.
Cellular defense and privateness: Advances, demanding situations and destiny study instructions offers the 1st actually holistic view of innovative cellular defense study from Dr. guy Ho Au and Dr. Raymond Choo-leading researchers in cellular protection. cellular units and apps became a part of daily life in either constructed and constructing international locations.
This up to date model describes, at a excessive point, the evolving firm safety panorama and gives counsel for a management-level viewers approximately how one can deal with and continue to exist chance. whereas dependent totally on the author’s event and insights at significant businesses the place he has served as CISO and CSPO, the publication additionally comprises many examples from different recognized businesses.
- Secure Java: For Web Application Development
- Securing Your Business with Cisco ASA and PIX Firewalls
- CCNP Security FIREWALL 642-618 Official Cert Guide
- Secure Java: For Web Application Development
- CCNP Security Firewall 642-617 Official Cert Guide
Additional resources for Digital Audio Watermarking Techniques and Technologies: Applications and Benchmarks
The secret factor a in equation (45) controls the high energy blocks distribution. Different aresults in different high energy blocks distribution. A lower value for a decreases the thresholds for high energy areas, thus more areas are treated as high energy areas. Although this provides more room to embed the watermarks, it reduces the system robustness since some high energy areas may become unstable after common signal processing or attacks. A higher a, on the other hand, increases such threshold, thus decreasing the number of high energy areas.
The input audio is segmented into overlapping frames. Each frame is decomposed by the DWPT into 25 sub bands that approximate the auditory critical bands as illustrated in Figure 19. Signal energy in each band is computed in the wavelet domain to provide the Bark spectrum energy. Tonality is estimated in each band to determine the extent the signal in that band Spread Spectrum for Digital Audio Watermarking e. f. g. h. is noise-like or tone-like. Shifted bark energy is calculated by scaling the bark energy according to the tonality factor.
D. e. f. g. Psychoacoustic Model A psychoacoustic model is applied to determine the masking thresholds for each frame in order to render the inserted data inaudible. The data are spread by a pseudo random sequence (PN sequence). Synchronization codes are attached to the spread data thus producing the final watermarks to be embedded. Watermark embedding into the original audio is conditional on the masking thresholds constraints. If the watermark is embedded in the transform domain then inverse transform is applied on the watermarked frame to convert the watermarked audio back to the time domain.
Digital Audio Watermarking Techniques and Technologies: Applications and Benchmarks by Nedeljko Cvejic, Tapio Seppanen