Choose the discrete tab 1.Listen to the main tone. What is the affect of adding
ID: 1864270 • Letter: C
Question
Choose the discrete tab 1.Listen to the main tone. What is the affect of adding small amounts of the harmonics (overtones?) For a basic simulation, with up to four harmonics, draw below each wave form and the summary wave form. Use different pens/pencils to represent the different waves (label them). What can you say about the regions where the waves have the same phase (are on the same side of the y- axis)? How do they add up in the summary wave? Show a poi nt on the summary wave and label this 4. What can you say about the regions where the waves have opposite phase (are on opposite sides of the y axis, or are shifted). How do they add up in the summary wave? Show a point on the summary wave and label this "destructive".Explanation / Answer
Answer 1) The adding of small amounts of the overtones (harmonics) has an affect on the tone quality.
The main tone, having no overtones, has a shape of a sine wave. Let us add a frequency which is twice the fundamental (second harmonic). Now, the shape of the main tone will be modified and infact the shapes of the two frequencies will be added together to get a new shape.
There are a few imperative perspectives to this new shape. To begin with, its shape is certainly not a basic sine wave, so it will sound more extravagant than only the main tone. Second, despite the fact that the shape is modified, the frequency and period are the same as the main tone. This is essential, since it implies that the pitch remains the same. Along these lines, now we can see the association between shape, overtones and tone quality. In the event that we add overtones to the main tone, we change the shape of the wave, however not its pitch, so this gives us a method for autonomously controlling the tone quality without influencing the pitch.