FFT_Window

Property FFT_Window As FFT_WINDOW_TYPE

Description

Sets/returns the FFT_Window type.

Value	Meaning
NO_WINDOW	No Window (default)
WINDOW_BLACKMAN	Blackman
WINDOW_HAMMING	Hanning
WINDOW_RECTANGLE	Rectangle
WINDOW_HAMMING	Hamming
WINDOW_TRIANGLE	Triangle

Remarks

The Triangular window gives a more precise frequency estimate, but it also the noisiest. This means that other frequencies will be shown as present, even though they may be much lower in volume.

At the other extreme, the Blackmann-Harris window has a broader frequency band which isn't as precise, but the sidelobes are very low, making it easier to pick out the major frequency components.

See Also

None.