384 



BHU. SYSTEM TECIINICAI. JOURXAL 



vowels ma>' be obtained liy multiplying these \alues by a factor of 3. 

 The third and fourth columns gi\e peak factors which convert the 

 power figures of the first two columns into maximum instantaneous 

 powers. Columns 5 and 6 give the maximum values of these peak 

 factr)rs found among the male and female \()ices, respect i\ely. 



TABLE III 

 Acoustic Power in Microwalls of the Vowel Sounds 



XIII. Frequency of Occurrence of English Speech Sounds 



(Table IV contains data from a book by Godfrey Dewey, "The 



Relativ'e Frequency of English Speech Sounds," Harvard 



University Press) 



TABLE IV 



Relative Frequency of Occurrence of English Speech Sounds 



