EX-23.1 3 dex231.htm CONSENT OF BDO SEIDMAN LLP

Prepared by R.R. Donnelley Financial -- Consent of BDO Seidman LLP

Exhibit 23.1

American Technology Corporation

San Diego, California

We hereby consent to the incorporation by reference in the Prospectus constituting a part of this Registration Statement of our report dated November 16, 2001, relating to the consolidated financial statements and schedules of American Technology Corporation appearing in the Company’s Annual Report on Form 10-K for the year ended September 30, 2001.

We also consent to the reference to us under the caption “Experts” in the Prospectus.

/s/    BDO Seidman, LLP

BDO Seidman, LLP

Costa Mesa, CA

September 16, 2002