# STFT - Putting it all together

On page 21, it has a section called "Putting it all together", it states the following steps:

Input data

Frequency resolution and length of DFT

Window function

Splitting of the data stream

FFT

Scaling

Now, the "Window function" is mapped out before the "Splitting of the data stream" if this is the case, should I therefore multiply each of the bins within the data stream by each of the window values (Hanning)?

For example, at the moment, my Hanning window size is: 256 and the data is split into segments of size 256x128 in this case.. N = size of stream and then compute hanning(N)

I've seem a lot of DSP engineers split the window up into frames, before applying the window?

Thanks