Hello all.

Is it feasable to do an fft in 'real time' on different 'blocks' of data

(i understand the nomenclature real time may be inappropriate).


Im thinking, in general usage of an FFT, some x[n] comes in one sample a
a time and fills up a buffer and when that buffer (lets call it 128 tim
domain samples) is filled a FFT is taken and the 'output' is 128 points o
frequncy domain data.

Now.. instad of somthing like a sliding DFT where a window evaluates th
previous 127 samples along with one new one, i have a situation where
want to give the 'fft buffer' 128 NEW data points... so every single 'tim
instant'...128 new x[n] data are available.

If this were done would I get a new FFT output at every time instant?