EXHIBIT 10.4 AGREEMENT REGARDING INDEBTEDNESS This AGREEMENT REGARDING INDEBTEDNESS (this "Agreement"), dated as of December 29, 1999, is entered into by and between SPATIALIZER AUDIO LABORATORIES, INC., a Delaware corporation ("Maker"), CPR (USA)...Agreement Regarding Indebtedness • March 30th, 2000 • Spatializer Audio Laboratories Inc • Semiconductors & related devices • New York
