Evaluation of speech quality using digital watermarking

Digital Watermarking of Speech Signals

Digital watermarking is the process of embedding data (comprising the watermark), ideally imperceptibly, into a host signal (the coversignal) to create a stegosignal. Although the term “coversignal” is commonly used in watermarking literature (Cox, Miller, & Bloom, 2002) to denote the host signal (data to be protected), the name used for the watermarked result, the “stegosignal,” is borrowed fr...

Digital Watermarking Based Image and Video Quality Evaluation

Image and video quality evaluation is very important. In applications involving signal transmission, the Reducedor No-Reference quality metrics are generally more practical than the Full-Reference metrics. Digital watermarking based quality evaluation emerges as a potential Reducedor No-Reference quality metric, which estimates signal quality by assessing the degradation of the embedded waterma...

An overview of digital speech watermarking

Audio Watermarking Quality Evaluation

The recent explosion of the Internet as a collaborative medium has opened the door for people who want to share their work. Nonetheless, the advantages of such an open medium can pose very serious problems for authors who do not want their works to be distributed without their consent. As new methods for copyright protection are devised, expectations around them are formed and sometimes improva...

Digital Watermarking Using MATLAB

Embedding a hidden stream of bits in a file is called Digital Watermarking. The file could be an image, audio, video or text. Nowadays, digital watermarking has many applications such as broadcast monitoring, owner identification, proof of ownership, transaction tracking, content authentication, copy control, device control, and file reconstruction (Cox et. al., 2008). In literature, the host f...