StegIbiza Algorithm Can Hide Messages in Dance Music
Krzysztof Szczypiorski, a Polish researcher and professor at Poland’s Warsaw University of Technology, has developed a new technique to hide information by cleverly altering the tempo of a particular type of dance music to encode the message in a way that’s totally inaudible to human listeners.
Szczypiorski has made use of an algorithm called StegIbiza, which helps for hiding information in a type of dance music known as Ibiza.
He changed the degree to which tempos were altered as part of his encoding method to see when those changes became noticeable to human ears. And he experimented this in a studio setting where some wore headphones and in an open-air environment where a DJ was in control, where he observed that tweaks less than 1 percent did not get noticed at all. So concluded that StegIbiza could be used to encode information in music and software could be designed to code and decode music.