levinson durbin

I was trying to implement Linear Predictive Coding in Matlab. The program I
wrote for Levinson Algorithm gives same coefficients as Matlab's levinson
function.
But i found out that  Matlab's lpc function gives different set of
coefficients. Why is it so?

	 

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On Thursday, November 27, 2014 4:49:30 AM UTC+13, 22139 wrote:
> I was trying to implement Linear Predictive Coding in Matlab. The program I
> wrote for Levinson Algorithm gives same coefficients as Matlab's levinson
> function.
> But i found out that  Matlab's lpc function gives different set of
> coefficients. Why is it so?
> 
> 	 
> 
> _____________________________		
> Posted through www.DSPRelated.com

so which is correct? Simulate a system with known AR coefficients and find the result.