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Discussion Groups | Code-Composer | C code for LPC - speech recognition
C code for LPC - speech recognition - Gina Upperman - Nov 27 23:21:00 2005
Hi All,
I am trying to write a basic speech recognition
program in
Code Composer Studio, and I am thinking of using Linear Prediction Coding to
calculate coefficients for each speech sample. Is there by any chance a
built-in LPC function in Code Composer Studio, like there is in Matlab? If
not, does anyone know of a simple C program to calculate the LPC coefficients
that I could use in CCS?
Thank you,
Gina Upperman
(You need to be a member of code-comp -- send a blank email to code-comp-subscribe@yahoogroups.com )
Re: C code for LPC - speech recognition - piyush kaul - Nov 28 23:44:00 2005
Hi Gina,
There is no library for LPC in Code Composer. However
since many speech codecs (e.g. CELP based, LPC-10 etc)
use LPC, you can extract the LPC implementations from
those.
This one link I found has sources for all sorts of LPC
based codecs.
http://www.data-compression.com/download.shtml
Something like lpc_lib.c in Melp implementation might
be what you are looking for
Regards
Piyush
--- Gina Upperman <upperman@uppe...> wrote:
> Hi All, >
> I am trying to write a basic speech recognition
> program in Code Composer
> Studio, and I am thinking of using Linear Prediction
> Coding to calculate
> coefficients for each speech sample. Is there by
> any chance a built-in LPC
> function in Code Composer Studio, like there is in
> Matlab? If not, does
> anyone know of a simple C program to calculate the
> LPC coefficients that I
> could use in CCS? >
> Thank you,
>
> Gina Upperman
(You need to be a member of code-comp -- send a blank email to code-comp-subscribe@yahoogroups.com )
There is no library for LPC in Code Composer. However
since many speech codecs (e.g. CELP based, LPC-10 etc)
use LPC, you can extract the LPC implementations from
those.
This one link I found has sources for all sorts of LPC
based codecs.
http://www.data-compression.com/download.shtml
Something like lpc_lib.c in Melp implementation might
be what you are looking for
Regards
Piyush
--- Gina Upperman <upperman@uppe...> wrote:
> Hi All, >
> I am trying to write a basic speech recognition
> program in Code Composer
> Studio, and I am thinking of using Linear Prediction
> Coding to calculate
> coefficients for each speech sample. Is there by
> any chance a built-in LPC
> function in Code Composer Studio, like there is in
> Matlab? If not, does
> anyone know of a simple C program to calculate the
> LPC coefficients that I
> could use in CCS? >
> Thank you,
>
> Gina Upperman
(You need to be a member of code-comp -- send a blank email to code-comp-subscribe@yahoogroups.com )