UNIT 2: The Ear


In todays lecture, we learnt about the anatomy of the human ear and the important parts of the ear. it also gives a very brief but unique way of explaining the structure as to how the ear is made up and what its key parts are. 
The Ear 
the ear is made up of three parts, the outer, the middle, and the inner.
Outer Ear
the outer ear itself consists of the pinna where this serves as a defence mechanism for the inner ear, not only does it protect the inner ear, it also protects the ear canal which then collects sound and pulls it towards the ear drum the shape of the pinna itself is shaped the way it is as it also helps detect incoming sounds coming from the vertical plane which can either come from above the ear, or below it.
Middle Ear
the middle ear is an air filled cavity located in the temporal area of the skull.
this consists of the ear drum also known as the tympanic membrane, the ossicles and the eustachian tube.
the tympanic membrane is a concave with an area between 60 and 90mm and the average thickness to a hundredth of a millimetre.
it as a rich blood supply.
sound waves strike the canal leading to the ear drum which then sets the tympanic membrane in motion so the louder the sound the more it moves.
 Inner Ear
The inner ear has two distinct portions, the vestibular portion, concerned with balance, and the auditory portion (the cochlea) which is concerned with hearing. The vestibular portion is made up of three semi-circular canals, each canal has a swelling at one end, the ampulla and two membranous sacs, the utricle, and the saccule. these contain fluid and sensory cells which move in response to head movement and travel indicate the body's status. the cochlea appears as snail shaped and is wrapped around the acoustic portion of the auditory nerve, if we were to unravel the cochlea it would be around 35 to 40 centimetres long. Inside the cochlea contains the basilar membrane which contains two sensory/hair cells, the inner and outer hair cells. when sound energy is transferred to the cochlea, the basilar vibrates up and down, causing the outer hair stereocilia to shear on the tectorial membrane above. the shearing action causes the stereocilia to bend, opening the ion gates, leading to electrical charges inside their cells. These charges make a neural impulse which travels to the brain and is interpreted as sound.


Comments

Post a Comment

Popular posts from this blog

UNIT 8: Research

Image
Throughout the course of this project I have done a lot of research in this project so today I will show and explain all the research I've done in this project. What you see here the tabs for "Enter Sandman" and "Lucretia". During the creation of my First and original song "Take it to your grave" I wanted to figure out a new section for my song as I didnt know what would come next. I didn't exactly use this as after i finished the solo the song goes into an interlude so i did not use this but it is good for the future in songwriting.  i knew what i wanted to do with my song, it involved getting a sample from a show called "Invincible" where a character named "Conquest" tells the main character all about his struggles and his loneliness before attempting to kill him followed by him saying "Take it to your grave" which inspired the name of my track. In order to extract Conquest's voice, I had to download the youtube ...
Read more

L3 Unit 5 & 6

Image
This will be my on going diary for units 5 and 6 dedicated to the creation, recording, and mixing of my music video.   For this assignment, I need to write a song, record it in logic, mix it, record a music video, edit the music video, and release it on YouTube. The song that my band have chosen to recording a music video for is "Take it to your Grave" which is a song about the character named "Conquest" from the comic book TV adaptation "Invincible". In the season 3 finale, Invincible faces planet Viltrums most feared warrior "Conquest" who batters invincible from pillar to post. During the fight, Conquest opens up to our hero and discusses his feelings of loneliness and isolation from his own race and how he doesn't even get his own name, only a purpose. He tells Invincible "Take it to your Grave" and tries to kill him. I thought Conquest would make a fantastic theme for a song so I wrote Take it to your grave about him I wrote th...
Read more

Unit 8: Week 1

Image
 So far i have learned how to put a guitar into logic using an interface and how to record my guitar parts into logic. I choose to play a harmony from the 1986 track by metallica "Master of Puppets". i chose this because it is a very good solo and it will get me into harmonizing which i had never done before  First of all, i had put the interface in control of the sound by changing the output and input to the interface. I then changed the input and output in logic to the interface. I then plugged a guitar cable into the interface but there was no sound on it so i had to change the interface to channel 2 so the system could hear my guitar. I checked a tab for master of puppets and changed the tempo to 106 which orchestrates the speed of the song. I had then started recording the two guitar tracks which harmonized with each other and after hundreds and hundreds of takes, i finally got the perfect harmony. I am proud of what i created in logic since this was my first time using...
Read more