On Sun, 9 Apr 2017 08:01:07 -0700 (MST), fredvs
<fi...@hotmail.com> wrote:
>Hello.
>
>> I was using attached unit some 7 years ago for various speech processing
>> purposes.
>
>+ @Martin
>
>Can those units be used for sound samples (array of float32 or array ot
>integer 32/16) ?
>
The unit declares the fft procedure like this:
(*---------------------------------------------------------------------------
procedure fft
Calculates the Fast Fourier Transform of the array of complex numbers
represented by 'RealIn' and 'ImagIn' to produce the output complex
numbers in 'RealOut' and 'ImagOut'.
---------------------------------------------------------------------------*)
procedure fft (
NumSamples: word; { must be a positive integer power of 2 }
var RealIn: array of double;
var ImagIn: array of double;
var RealOut: array of double;
var ImagOut: array of double );
As you can see it uses double, which means you will be OK to supply
both single and integer values, just load the array with them and they
will be converted.
--
Bo Berglund
Developer in Sweden
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