Today was the first day in the AIVP (Audio, Image and Video Processing). To start it off we spoke about different ways to tune a guitar, this was an easy introduction to waves and progressed into us listening to our lecture as he went through a powerpoint.
Through the powerpoint, I took down some notes as anything is easier to understand once it's been put into your own words. I also took a copy of the powerpoint from Moodle to have as a reference in case my own notes are not as detailed in a particular place.
Today I learned that there are two different kinds of waves, the traverse wave and the longitudinal, which are different in how they act.
Longitudinal Waves - have the molecules moving in the direction the disturbance is going. E.g Newton's cradle, when the ball at the end is released and hits the rest the on on the opposite side will continue moving in that direction despite the original one being stationary.
Below is a link to an online version:
How does each wave act?
Traverse Wave - is like a rippling pond in which the water molecules move away from the disturbance.Longitudinal Waves - have the molecules moving in the direction the disturbance is going. E.g Newton's cradle, when the ball at the end is released and hits the rest the on on the opposite side will continue moving in that direction despite the original one being stationary.
Below is a link to an online version:
We also spoke about compression and rarefaction.
What is compression and rarefaction?
Compression - is the increase on density in a wave.
Rarefaction - is the decrease of density in a wave.
Lastly we spoke of the wavelength and amplitude.
Amplitude being the height of a wave.
Wavelength being the distance between to successive crests in the wave.
The link below is to the BBC Bitesize page, This gives a good example of what wavelengths, amplitudes and frequencies are. It includes an explanation of each along with a diagram:
Amplitude being the height of a wave.
Wavelength being the distance between to successive crests in the wave.
The link below is to the BBC Bitesize page, This gives a good example of what wavelengths, amplitudes and frequencies are. It includes an explanation of each along with a diagram:
I was able to understand this better as well as learn the different units of frequency that a wave is measured in.
I will have another look through the powerpoint between now and next week and continue to make my own notes as we weren't able to complete the entire powerpoint in class today.
Hopefully we will be going to see an Acoustic Anechoic Chamber next week, but it is not confirmed yet.
