Wednesday, May 07, 2008

FFT Window references

http://www.lds-group.com/docs/site_documents/AN014%20Understanding%20FFT%20Windows.pdf
http://www.bores.com/courses/advanced/windows/files/windows.pdf

The first link has a table with window characteristics:

Window / Best for these Signal Types / Frequency Resolution / Spectral Leakage / Amplitude Accuracy
Barlett: Random / Good / Fair / Fair
Blackman: Random or mixed / Poor / Best / Good
Flat top: Sinusoids / Poor / Good / Best
Hanning: Random / Good / Good / Fair
Hamming: Random / Good / Fair / Fair
Kaiser-Bessel: Random / Fair / Good / Good
None (boxcar): Transient & Synchronous Sampling / Best / Poor / Poor
Tukey: Random / Good / Poor / Poor
Welch: Random / Good / Good / Fair

A. O. Scott: Here Comes Everyboy, Again

"Mr. Sandler did not invent the archetype of the overgrown man-child, which has been around at least since the silent era. ... Nor has Mr. Sandler been alone, over the past 15 years or so, in turning male infantile aggression into the basis of a lucrative and long-running movie career. His rivals and confreres have included Jim Carrey, Jack Black and Will Ferrell — all of them different physical and temperamental types, but all of them committed to a brazen and unyielding refusal of maturity."

Add to this list the television comedies Seinfeld, Friends, Everyone Loves Raymond, and most recently, King of Queens. I had wondered about the provenance of this archetype, and the exact nature of the thing that so repulsed me about those shows, until this essay put a name to the phenomenon.