Re: Effects of speech rate on consonants and vowels

[Tarun Pruthi <tpruthi@xxxxxxxxxxxx>]

Hi Martin,

I had read something about the speaking rate with respect to nasalization 
in:

@inbook{ref-krakow1993,
   AUTHOR = {Krakow, R. A.},
    TITLE = {Phonetics and Phonology: Nasals, Nasalization and the Velum},
   EDITOR = {Huffman, M.K. and Krakow, R.A.},
     YEAR = {1993},
PUBLISHER = {Academic Press},
   VOLUME = {},
  CHAPTER = {Nonsegmental influences on velum movement patterns: 
Syllables, Sentences, Stress and Speaking Rate},
   NUMBER = {},
    PAGES = {87-116},
}
There's a small section about 6 pages long in this chapter of the book. It 
might be a start.

Here's a relevant excerpt: "The studies done to date on velic movements at 
different speaking rates indicate that speakers may vary in the extent to 
which their fast productions approximate the extreme positions of their 
normal rate productions, since a rate change may be achieved by increasing 
the velocity and/or decreasing the range of movement. And, when a movement 
reduction occurs, it may affect both extremes of the normal range of 
movement, or just one."

So, the steady state is definitely going to be affected because of greater 
overlap of adjacent gestures. The formant transitions may be steeper 
because of an increase in the velocity of different gestures, or the 
formants might achieve less extreme positions because of a decreased range 
of movement.

Hope this helps!
Tarun

 On Fri, 23 Jun 2006, Martin Heckmann wrote:

> Dear List,
>
> I'm interested in the influences of different speaking rates on vowels and
> consonants, mainly in the effects on the steady state phase and the
> formant transition (e.g. does the slope of the transition change or is
> mainly the steady state phase affected ?). What is the effect of the
> speaking rates on plosives ?
>
> Does anybody have experince with this or knows some literature to start
> with ?
>
> Any help is greatly appreciated !
>
> Thanks
>
> Martin

-----------------------------------------
Tarun Pruthi
Graduate Research Assistant, ECE
Room 3180, A V Williams Building
University of Maryland, College Park
MD 20742 USA
Email: tpruthi@xxxxxxxxxxxx
Web: www.ece.umd.edu/~tpruthi
Ph: 301-405-1365
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