Re: About spectrum of speech and fax transmission



VSP wrote:

hi all,
Someone please tell me why the spectrum of speech rolls off
towards the higher frequencies ?????? I am a newbie to DSP so, simple terms please as far as possible. 

This is the scientific fact. Throat is made of soft materials.


I am hoping to use this fact to distinguish it from other
data transmissions such as fax. 

Sure. This simple method works very well.

Vladimir Vassilevsky

DSP and Mixed Signal Design Consultant

http://www.abvolt.com
.

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