FOR IMMEDIATE RELEASE AMERICAN TECHNOLOGY CORPORATION AWARDED FIRST MILITARY CONTRACT FOR HSS TECHNOLOGY Company Expects Further Contracts for HSS Military Applications (SAN DIEGO, CA -- August 27, 1998) - American Technology Corporation (OTC: ATCO), announced today that it has been awarded its first military contract to assess the applicability of using HyperSonic (tm) Sound (HSS) technology to detect infrasonic acoustics associated with high energy events important to the Nuclear Treaty Program Office. The Company expects that this contract and expected follow-on work will generate approximately $400,000 in revenue over the next six months. "This first military contract is the culmination of months of work and serves as a springboard for significant opportunities with the military not only for HSS, but for our other technologies as well," said Con Brosnan, president and CEO. "Because HSS is the first technology to give sound projectable directionality, we expect this award to be the beginning of additional military application contracts." [Eleanor's note: "Directionality" is the clue here, this is an alternate form, less sophisticated but still feasible, of creating "voice-to-skull" effects. John Williams of Consumertronics told me in an email he also has an acoustic voice-to-skull weapon. Just wait until your neighbourhood hackers get hold of this gem.] HyperSonic Sound is an award-winning patented technology in sound reproduction that employs ultrasonic tones in a new process to produce sound directly in the air. HSS eliminates many forms of distortion and reduces room acoustical effects. HSS can project audible sound to virtually any listening environment creating many new sound applications previously impossible with existing speaker technology. American Technology Corporation is a globally recognized developer and licenser of patented and patents-pending leading-edge sound reproduction technologies and electronic products. ATC's technology portfolio includes the award-winning HSS and SFT sound reproduction technologies, Global Position Satellite (GPS) Tracker technology, Jet Engine Noise Reduction technology and AM/FM/Solar Sounds radio products. For more information on the Company and its technologies and products visit www.atcsd.com. # # # FOR FURTHER INFORMATION CONTACT: Robert Putnam (619) 679-3168 __________________________________________________ Wendy Ravenel Investor Relations American Technology Corp. 13114 Evening Creek Drive South San Diego, CA 92127 (619) 679-2114 http://www.atcsd.com investor@atcsd.com