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Filter bank Analysis 

We can now assemble a set of band pass filters to analyse speech. These need to be covering - that is every frequency is covered by one filter so no information is lost.

An example of one filter is figure 10:

  figure214
Figure 10: A band pass filter

The output is a waveform, but as the phase is not so important we need the magnitude or the energy - how?





Speech Vision Robotics group/Tony Robinson