It is very important to understand what we mean with the terms "Phonetics" and "Phonology". In this exercise, you will have to create THE PERFECT DEFINITION on these terms. This is the way to follow:
1. Read the definitions that I provide in this entry
2. Extend the definitions by means of REWRITING them and ADDING EXTRA INFORMATION
3. It is very important that we follow a chain to do this. That is, the first person to post a comment modifies MY definition. The second person to post a comment modifies the 1st person's definition. The third person to post a comment modifies the 2nd person´s definitions, etc.
That way, we will create a "snow ball" that should lead to the perfect and complete versions of the definitions.
THESE ARE THE STARTING DEFINITIONS:
1. Phonetics is a field of knowledge that studies sounds.
2. Phonology is a field of Linguistics that studies sounds.
Together with your definitions, you must use a list of references (books, articles, web pages) that you have used to add your "snow ball")
Tuesday, April 14, 2009
Wednesday, March 4, 2009
The Perceptual System
Our perceptual experience is motivated by the displacement of the gas molecules that appear in the air. If there is no air, there is no sound. When an object starts to vibrate, this movement causes the displacement, these gas molecules run into each other and produce soundwaves.
The physical properties of these soundwaves are:
- Frequency
- Amplitude
- Phase angle
Of the three, frequency is the characteristic which mostly influence in our perception of a sound. That is, our auditory system is especially sensitive to changes in frequencies.
However, other important factors are:
- duration
- amplitude
- previous sounds
- our attention at the moment the sound is produced
Let´s now speak about 3 important features related to sound perception:
1) Amplitude (Volume): The wider the amplitude of the soundwave, the louder the perception we receive. However, there is not a one-to-one correlation between amplitude (volume) and perception: background noise, the listener's characteristics and frequency can influence on a better or worse reception of sounds
2) Simultaneous sounds: When two sounds are combined, the resulting sound depends on the difference in the frequency of the two sounds.
The physical properties of these soundwaves are:
- Frequency
- Amplitude
- Phase angle
Of the three, frequency is the characteristic which mostly influence in our perception of a sound. That is, our auditory system is especially sensitive to changes in frequencies.
However, other important factors are:
- duration
- amplitude
- previous sounds
- our attention at the moment the sound is produced
Let´s now speak about 3 important features related to sound perception:
1) Amplitude (Volume): The wider the amplitude of the soundwave, the louder the perception we receive. However, there is not a one-to-one correlation between amplitude (volume) and perception: background noise, the listener's characteristics and frequency can influence on a better or worse reception of sounds
2) Simultaneous sounds: When two sounds are combined, the resulting sound depends on the difference in the frequency of the two sounds.
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