Regarding LPC to LSF conversion

Hi All,
I into iLBC codec.I understood the basics that why the LPC coefs are
transformed into LSF theortically, but I find it difficult to understand
mathematically.
Pls help me with the maths associated with it and links if any.

Pradeep  

try this http://www.ee.ic.ac.uk/hp/staff/dmb/courses/speech/Lpc.pdf

Dmitry

Try this: http://www.ee.ic.ac.uk/hp/staff/dmb/courses/speech/Lpc.pdf

Dmitry

>Hi All,
>I into iLBC codec.I understood the basics that why the LPC coefs are
>transformed into LSF theortically, but I find it difficult to understand
>mathematically.
>Pls help me with the maths associated with it and links if any.
>
>Pradeep  
>
>
>

Hi Pradeep,

Are you able to evaluate Floting point code?If so please help me with the
below problem.

I just started working on ILBC codec.I' ve downloaded the "rfc3951.txt".I
builded the C code on VC++.I am not getting any error.But when i am trying
to Evaluate the floating point code i am facing the problem with the
decoder,it's output is always 32767 or - 32768.0 regardless of the
Encoders output.

Thanks & Best regards,
Viswanath..