Exam 3. Pure & Complex To es Flashcards
Define acoustics
The study of sound
Define speech (non-Stetson)
A continuously changing stream of sound
Define sound
A set of movements or disturbances in the air, solid, or liquid.
Most sounds are….
Complex
Define complex periodic sound
The pattern of vibration keeps repeating itself in a predictable manner.
EXs - complex periodic sound
/a/
When you see a as a prefix, what does it mean?
Without
Define complex a periodic sound
The pattern of vibration repeats itself in a random manner. Referred to as noise.
Define pure tone
A sound that consists of only one frequency of vibration.
What does a pure tone result from?
Results from a vibration that repeats itself a constant number of cycles per second.
Define frequency
The numbers of cycles per second. Abbreviated as Hz (Hertz).
What is the best example of a pure tone?
The sound generated by a tuning fork
A tuning fork is forged to vibrate at _________.
One frequency
From the time a tuning fork is struck to the time it dampens out, what is it vibrating at?
392 HZ
What is the affect of loudness on frequency from the time a tuning fork is struck until it dampens out?
Just because th esound is not as loud doesn’t mean it isn’t the same frequency as it was when force was applied (when it was louder).
