Re: LPC in Simulink?

Started by Jeff Brower March 19, 2006

> How do I use LPC block in Simulink to estimate my signal and then
> reconstruct rhe original signal? From the LPC block I get the linear
> prediction polynomial coefficients and error coefficients, and I
> should be able to construct original signal from these losslessly.
> Any help appreciated.

LPC is not a transformation; it's an algorithm that models the input signal as
periodic low-pass filter responses, typically used to model voiced sounds from the
human vocal tract.

You won't be able to recover the original signal without loss. You can get back an
approximate version of the input signal. Using more coefficients will improve the
accuracy -- up to a point.