Try this:
http://www.mega-nerd.com/SRC/
It includes source.

"Jaime Andrés Aranguren Cardona" <[email protected]> wrote in message
news:1103129550.7987b75918af9ea133251f5237596ac2@t eranews...
> "Jim Thomas" <[email protected]> escribió en el mensaje
> news:[email protected]..
> > Jaime Andrés Aranguren Cardona wrote:
> > > What else could I try, guys? I'd really appreciate if you can take a
> look at
> > > my code, and help me find out where the mistakes can be, or provide me
> with
> > > some reference C code.
> > >
> > > Thanks you very much in advance,
> >
> > Did you see Grant's multirate code on dspguru.com?
>
> Hi Jim,
>
> Yes I did. It is not polyphase, right? I'd love it was... Any example in C
> with ployphase implementation?