Audio Watermarking - What is typically embedded?

1. What is watermark embedded?
2. What is a watermark on an audio file?
3. What are the two types of watermarks?
4. What is the purpose of watermarking?

What is watermark embedded?

Watermark embedding is the process of embedding the watermarked image into the original image. In watermark embedding process, initially, DWT-SVD is applied on the input image decomposing it into a number of sub-bands. Then, the variance of each sub-band is calculated and we select the minimum variance.

What is a watermark on an audio file?

Audio watermarking is the process of adding a distinctive sound pattern — undetectable to the human ear — to an audio signal to make it identifiable to a computer. It's one of the ways that video sites recognize copyrighted recordings that have been posted illegally.

What are the two types of watermarks?

There are two types of digital watermarking, visible and invisible.

What is the purpose of watermarking?

Watermarking is a technique with similarities to steganography. It has been around for centuries and is commonly used in money and stamps to assist in identifying counterfeiting. The idea behind watermarking is to create a translucent image on the paper to provide authenticity.