Speech Sound Acquisition

Sounds follow a developmental sequence yet there can be variability among children.  Developmental norms provide a helpful guideline as to what is age-appropriate.

The following table provides the recommended ages of acquisition for consonant sounds as well as consonant clusters (Taken from Smit, A.B., Hand, L., Freilinger, J.J., Bernthal, J.E., & Bird, A. (1990).

 

Recommended Age of Acquisition

Phoneme

Females

Males

m

3;0

3;0

n

3;0

3;6

-ng

7;0-9;0

7;0-9;0

h-

3;0

3;0

w-

3;0

3;0

p

3;0

3;0

b

3;0

3;0

t

4;0

3;6

d

3;0

3;6

k

3;6

3;6

g

3;6

4;0

f-

3;6

3;6

-f

5;6

5;6

v

5;6

5;6

“th” (thumb)

6;0

8;0

“th” (this)

4;6

7;0

s

7;0-9;0

7;0-9;0

z

7;0-9;0

7;0-9;0

“sh”

6;0

7;0

“ch”

6;0

7;0

“j”

6;0

7;0

l-

5;0

6;0

-l

6;0

7;0

r-

8;0

8;0

“er”

8;0

8;0

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