3. _What is an Elementary sound?_
One that cannot be divided so as to be represented by two or more
letters.
4. _What is Sound?_
A sensation produced on the auditory nerve by the rapid vibratory
motion of any elastic substance.
5. _What is the least number of vibrations that will produce an
audible sound?_
Sixteen per second.
6. _What is the greatest number that can be heard?_
About forty thousand per second.
7. _What is Voice?_
Sound produced by the vocal chords.
8. _What is an Articulate sound?_
One made by the organs of speech and used in language.
9. _What is a Vocal sound?_
One that is modified but not obstructed by the articulatory organs.
10. _What is a simple Vocal sound?_
One made without any change in the position of the articulatory
organs during its emission.
11. _What is a Coalescent?_
An articulate sound that always precedes and unites with a vocal.
12. _What is a Guttural sound?_
One that is modified by the soft palate.
13. _What are Unarticulate sounds?_
The sounds of the vowels.
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