Because speech sounds change over time, we need to analyse only short regions of the signal. We convert the speech signal into a sequence of frames.
October 11, 2014
Windowing
When we say that a signal is non-stationary we mean that its properties, such as the spectrum, change over time. To analyse signals like this, we need to first assume that these properties do not change over some short period of time, called the frame. We can then analyse individual frames of the signal, one at a […]
