LAB 11: Introduction to Speech Disorders

The main purpose of this laboratory is to use perception and acoustic analysis to study (1) misarticulations by children, (2) speech of deaf children, and (3) speech of dysarthric children.

Here are the resources that you will need:

Lab 11 handout (PDF)

Utterances

• Pre-recorded data stored in the labc account under ~labc/ken/misart, ~labc/ken/deaf, and ~labc/ken/dysarthria.

If you do not have access to the labc account, you can download the utterances for this lab.

The Tools

• lspecto - used to make spectrograms (UNIX®/Linux®)
• xkl - used for spectrum and waveform analysis (UNIX®/Linux®)

Reference Readings

Daniloff, R. G., K. Wilcox, and M. I. Stephens. "An acoustic-articulatory description of children's defective /s/ productions." J Communications disorders 13 (1980): 347-363.

Monsen, R. B. "Normal and reduced phonological space: The production of English vowels by deaf adolescents." J Phonetics 4 (1976): 189-198.

Minifie, F. D., ed. Introduction to Communication Sciences and Disorders. San Diego, CA: Singular, 1994.

Ohde, R. N., and D. J. Sharf. Phonetic Analysis of Normal and Abnormal Speech. New York, NY: Macmillan, 1992.