Exhibit 12.1

Arbitron Inc.
Ratio of earnings to combined fixed charges

																	Nine Months Ended
		Years Ended December 31,															September 30,
		2000			1999			1998			1997			1996			2001			2000
Earnings
	Net income	$	45,263		$	39,742		$	34,191		$	24,719		$	26,570		$	33,865		$	38,091
	Income tax expense		29,552			25,946			22,288			16,137			17,347			22,108			24,896
	Interest expense		—			—			—			—			—			10,517			—
	Amortization of debt issue costs		—			—			—			—			—			409			—
	Portion of rent expense considered to represent interest (a)		2,408			2,253			2,226			2,116			2,268			2,033			1,789
	Distribution of earnings from affiliate		2,875			3,276			2,750			1,549			215			3,300			2,475
	Equity in net income of affiliate		(3,397	)		(2,253	)		(2,452	)		(1,768	)		(880	)		(426	)		(273	)
	Total earnings	$	76,701		$	68,964		$	59,003		$	42,753		$	45,520		$	71,806		$	66,978
Fixed Charges
	Interest expense	$	—		$	—		$	—		$	—		$	—		$	10,517		$	—
	Amortization of debt issue costs		—			—			—			—			—			409			—
	Portion of rent expense considered to represent interest (a)		2,408			2,253			2,226			2,116			2,268			2,033			1,789
	Total fixed charges	$	2,408		$	2,253		$	2,226		$	2,116		$	2,268		$	12,959		$	1,789
Ratio			31.9x			30.6x			26.5x			20.2x			20.1x			5.5x			37.4x

(a) The Company considers one-third of rent expense to represent interest expense.