STFT why overlapping the window?

1. Why use overlapping windows?
2. Why do we need to overlap segments for analysis in speech signal processing?
3. What is an overlapping window?
4. Why overlapping frames?

Why use overlapping windows?

Overlapping windows improve the perceived time-resolution and, based on Welch's method, reduce the variance of the PSD estimate. The improved time-resolution can be useful to help in locating certain (short-duration) events.

Why do we need to overlap segments for analysis in speech signal processing?

To produce a spectrogram, software divides the sound signal into short, overlapping time segments called frames, each about 40 milliseconds long (1/25th of a second). The overlap avoids losing information at the start and end of each frame. The sound spectrum is determined for each frame.

What is an overlapping window?

Overlapped Windows

An overlapped window is a top-level window (non-child window) that has a title bar, border, and client area; it is meant to serve as an application's main window. It can also have a window menu, minimize and maximize buttons, and scroll bars.

Why overlapping frames?

it's to avoid clicks. it's so that if any of these overlapping frames is modified and not exactly as the adjacent frames are modified, that the effect on one window fades out with the window and the effect of the next window fades in.