in speech processing how can i divide each frames into four subframes??

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neha gautam il 21 Ott 2015

i have a speech signal with 8khz sampling frequency and i have divided speech files into frames of 20ms using

 [ip,Fs,bits] =wavread('sp02.wav');
  y=buffer(ip,160);
now how i divide each frame into 4 subframes.

plz give suggestions.. thank you

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