Displaying 2 results from an estimated 2 matches for "fix_point".
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2007 Apr 17
1
question about spx_fft
...bove N/2 is
> the complex conjugate of what's below so it's uninteresting as well.
>
>
> > And do you think the hardware
> > approach will fit in
> > your AEC module?
>
> Sure, use the right ordering (and be careful with scaling!) and it'll
work.
In the FIX_POINT version of the spx_fft function, where is the actual code
that do
the forward FFT normaliaztion by 1/N? I saw the code first maxmize the input
before the FFT and renormalize it back afterwards. Isn't this making the
signal bigger
and easy to overflow? If I am not mistaking, the input to the kis...
2007 Apr 15
3
question about spx_fft
Hi Jean-Marc and list,
Is the spx_fft function in fftwrap.c a standard fft function?
void spx_fft(void *table, spx_word16_t *in, spx_word16_t *out)
When I say standard, I mean the input "in" is 128 point short data for
example and
the output "out" is 128 short complex value which is stored in 256
short array with real and
image part. Looks like the function did some