Newsgroups: comp.speech
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From: miscord@ee.mu.OZ.AU (Michael Scordilis)
Subject: Re: Statistics of Voiced/Unvoiced Speech Segment?
Message-ID: <9506213.20471@mulga.cs.mu.OZ.AU>
Sender: news@cs.mu.OZ.AU (CS-Usenet)
Organization: Department of Electrical & Electronic Engineering, University of Melbourne
References: <1995Feb28.190135@omega.ntu.ac.sg> <3j59ri$m11@net.auckland.ac.nz>
Date: Fri, 3 Mar 1995 02:10:05 GMT
Lines: 24

In article <3j59ri$m11@net.auckland.ac.nz> mmt@ccu1.auckland.ac.nz (Mark Thomson) writes:
>sf7036870@omega.ntu.ac.sg writes:
>
>>	Would like to know whether there is any statistics about the 
>>	occurrance of voiced and unvoiced segment in the spoken 
>>	English language.
>
>I can't think where I got this from, but my recollection is that about
>60% of speech is voiced.


If you look at "Speech Analysis, Synthesis and Perception", by J Flanagan,
Table 1.1, pg. 5, you can see a ranking of the relative frequency of
occurence of the English phonemes during speech activity.  Vowels and
diphthongs occur 38% of the time, and the voiced consonants (n,r,d,l,'d',
z, m, v, w, b, 'n', g, j, 'dz', 'z') occur 40.31% of the time. making
a total of 78.31% for voiced sounds.  Of course, the bursts of voiced 
plosive may not really be 'voiced', but these account for a small portion 
of the plosive (or affricate) duration. 

Michael Scordilis

 
Michael Scordilis	   	|internet    m.scordilis@ee.mu.OZ.AU
