[music-dsp] Frequency of FFT components?

Bob Cain arcane at znet.com
Thu Jul 12 14:33:10 EDT 2001



Svante Stadler wrote:
> 
> Would it be wrong to interpolate using, say a cubic spline? This might
> not be very mathematical, but I've experimented with this and got some
> good results.
>

You should get a reasonable approximation for display purposes.  You
would have to do it to both the magnitude and the unwrapped phase in
order to IFFT back to a longer impulse response and beware what you do
with the DC coeficient and possibly the Nyquist coeficient.


Bob
-- 

"Things should be described as simply as possible, but no simpler."

                                             A. Einstein


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