Arbitron Inc. Third Quarter Earnings Release and Conference Call Scheduled for October 19, 2004.

NEW YORK -- Arbitron Inc. (NYSE:ARB) announced today that it will release its third quarter 2004 results on Tuesday, October 19, 2004 during pre-market hours.

Following the release, Arbitron will host a conference call at 10:00 a.m. ET. The Company invites you to listen to the call by dialing 877-780-2271. The conference call can also be accessed from outside the United States by dialing 973-582-2737. The call will also be available live on the Internet at the following sites: www.arbitron.com, www.ccbn.com and www.streetevents.com.

A replay of the call will be available from 12:00 p.m. on October 19, 2004 through 11:59 p.m. on October 26, 2004. To access the replay, please call 877-519-4471 in the United States or 973-341-3080 outside the United States. To access the replay, users will need to enter the following code: 5229030

About Arbitron

Arbitron Inc. (NYSE:ARB) is an international media and marketing research firm serving radio broadcasters, cable companies, advertisers, advertising agencies and outdoor advertising companies in the United States, Mexico and Europe. Arbitron's core businesses are measuring network and local market radio audiences across the United States; surveying the retail, media and product patterns of local market consumers; and providing application software used for analyzing media audience and marketing information data. The Company is developing the Portable People Meter, a new technology for radio, television and cable ratings.

Arbitron's marketing and business units are supported by its research and technology organization located in Columbia, Maryland. Arbitron has approximately 1,700 employees; its executive offices are located in New York City.

Through its Scarborough Research joint venture with VNU, Inc., Arbitron also provides media and marketing research services to the broadcast television, magazine, newspaper and online industries.

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. The statements regarding Arbitron in this document that are not historical in nature, particularly those that utilize terminology such as "may," "will," "should," "likely," "expects," "anticipates," "estimates," "believes" or "plans," or comparable terminology, are forward-looking statements based on current expectations about future events, which Arbitron has derived from information currently available to it. These forward-looking statements involve known and unknown risks and uncertainties that may cause our results to be materially different from results implied in such forward-looking statements. These risks and uncertainties include whether we will be able to:

--renew all or part of contracts with large customers as they expire;

--successfully execute our business strategies, including implementation of our Portable People Meter services, as well as expansion of international operations;

--effectively manage the impact of further consolidation in the radio industry;

--keep up with rapidly changing technological needs of our customer base, including creating new products and services that meet these needs;

--successfully manage the impact on our business of any economic downturn generally and in the advertising market in particular; and

--successfully manage the impact on costs of data collection due to privacy concerns and/or government regulations.

Additional important factors known to Arbitron that could cause forward-looking statements to turn out to be incorrect are identified and discussed from time to time in Arbitron's filings with the Securities and Exchange Commission, including in particular the risk factors discussed under the caption "ITEM 1. BUSINESS - Business Risks" in our Annual Report on Form 10-K.

The forward-looking statements contained in this document speak only as of the date hereof, and Arbitron undertakes no obligation to correct or update any forward-looking statements, whether as a result of new information, future events or otherwise.