Universal's Audible Watermark Iron Chef of Music — battle notes https://ironchefofmusic.com/ingredients/universals-audible-watermark Two hours; one sample; no winners. UMG uses a spread spectrum watermark, a technique explained in detail in this Microsoft research paper. The watermark scheme modulates the total energy in two different bands, 1khz to 2.3 khz and 2.3 to 3.6 khz. The energy is concentrated in the most perceptually sensitive frequencies because that makes it more difficult to attack or remove without significant audible distortion. - mattmontag.com This pack is meant to be remixed. Read the rules and upload your own take at https://ironchefofmusic.com/ingredients/universals-audible-watermark