20
W.W.L.Au
20
(al
200
400
1500
(e)
(bl
1000
N
20
J:
~
- 15
>- 0
Z
W 10
~
"
W
5
a: u.
mS
20
15
10
5
500
TIME (MS)
FIGURE 1.9. Examples of the spectrograms of some of the basic fundamental
contour shapes: (a) Constant frequency, (b) upsweep, (c) downsweep, (d) convex
or hill, (e) concave or valley (f) sinusoidal or multiple. (Courtesy of Carmen
Bazua-Duran.)