Preemphasis

o EST_pre_emphasis
Pre process to emphasise higher frequencies
o EST_post_deemphasis
Post process to get the original back (eg after resynthesis)

Used in LPC analysis and spectrogram creation. These two functions are inverses of one another.

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This page is part of the Edinburgh Speech Tools Library documentation
Copyright University of Edinburgh 1997
Contact: speech_tools@cstr.ed.ac.uk