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A presentation on windowing
1. A Mini Presentation
On
‘ Windowing ’
Tanjarul Islam Mishu
[@tanjarul26]
Dept. of CSE
Jatiya Kabi Kazi Nazrul Islam University
2. Outlines
What is Window? Necessity of Window.
Applying Window & Its Result.
Windowing on Speech Signal.
Several Windows Examples.
3. Signal in Frequency Domain
Window
Why Windowing:
For better Fourier Transform Result.
To avoid jump discontinuity problem.
Window is a mathematical function
that is zero-valued outside of some
chosen interval.
4. Windowing attempts to do the following:
Keep the windowed signal similar to the original in the
central regions.
Reduce or eliminate the discontinuities in the implicit
periodic signal.
Windowing
5. Some Window Examples:
Hanning
Rectangular
Triangular
Trapezoid:
Windowing on Speech Signal
Fig : Window Operation on Speech Signal