Tutorial for watermark extracting

How to use?

Input your audio file that has been watermarked by this app and its original version to extract the hidden watermark data.

How does the watermarking work?

The watermark data is hidden into the audio by manipulating the audio signal's volume using an algorithm developed by me.

Essentially, the watermark data is split into multiple small chunks of values, and the audio signal is split into chunks of very short duration. Each small value is used to volume boost each audio chunk by a small amount.

To extract the watermark data, the original and watermarked audio files will both be split into chunks again. THe volume difference between each pair of chunks is measured, and all the volume differences are used to reconstruct the watermark data.