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First of all I am going to explain what is HIFI, and what is HIFI earphone. Then i will put some pictures of earphone cross section to show the  of earphone material and structure differences. So they will have a better understanding. Finally i will give my audience some website so they can test by themselves and they will have a better authentic experience.
For example
1.materils-
most material can be made into earphone however some material are good for Sound resonance and durability for example ceramic, plastic, stainless steel etc.( most of them)
2.structure differences-
HIFI earphones have different structure  etc.

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For this promotional video, i am going to give my audience a brief introduction about HIFI-earphones it including material, music style, structure differences, frontend for music player, famous manufacturers and wire rod. Then compare to normal earphones what are the differences between them.
The major characters are me and some earphone samples.
it is important for people to know what is  HIFI-earphone because
first of all i love music, collect earphones is my habits secondly sometimes people get confused and i really want more people get into know what is HIFI.

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After come up with 80 ideas i decided to use the idea HIFI earphone for my assignment 2 video

I think that making a promotional video for HIFI earphone is a good choice because i will be able to talk about what it is and why a like it in the film.

image sources
https://symphonyhifi.com/shop/akg-k3003i-reference-class-in-ear-headphones/

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making a promotional video
color in advertising
HIFI earphone vs earphone

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1.Andrew, KM 15 September 2009, In-ear earphone, [*PUBLISHER REQUIRED*], [*PLACE PUBLISHED REQUIRED*].
This article gives a explanation of in-ear earphone. An in-ear earphone for providing high fidelity sound to the ear and having a housing with a receiver bay, at least one speaker positioned in the receiver bay.

2..Percival, JM 2011, 'Music Radio and the Record Industry: Songs, Sounds, and Power', Popular Music and Society, vol. 34, no. 4, pp. 455-473.
This article gives us an overview of music ,sound and record industry so that we know where does the music con from.

3. Wen, W, Haixiao, S & Zheng, G 24 August 2011, MP3 player, [*PUBLISHER REQUIRED*], [*PLACE PUBLISHED REQUIRED*].
This article gives a introduction of MP3 player, it  has the outstanding characteristics that the zipper and the MP3 player are combined together and the MP3 player is portable, attractive and generous and it is necessary for a HIFI-earphone.

4.White, J 1963, 'Considerations in high-fidelity moving-coil earphone design', Audio, IEEE Transactions on, vol. AU-11, no. 6, pp. 188-194.
This documents give theory of simple moving-coil earphone in detail, some difficulty in earphone design for example a resonant back-loading cavity for improved low-frequency performance when air leaks

5.Yao, S 11 July 2012, Earphone, [*PUBLISHER REQUIRED*], [*PLACE PUBLISHED REQUIRED*].
This article gives us a explanation of a earphone, it consists of two headphone wires (1), and a matching zipper (2) is set on the two headphone wires (1). And the volume adjuster (3) is arranged in the earphone wire (1). The two earphone cables can be integrated together. Through the zipper, the opening of the zipper can adjust the two earphone wires according to the requirements.

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Teenagers and adults who loves listen to music.
Wealthy family

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What has mindmapping shown you about your product?
It shows what is HIFI headphone and what does it include?

Was it difficult to explore your product to deeply?
My topic is too wide and some part can be too academic.

Did you come up with any new ideas that will help you think differently about planning your promotional video?
Maybe i can record music for my headphone, they will have a more authentic experience.

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My 80 ideas i can promote in assessment 2 video.
1. a introduction about Adelaide
2. a introduction of Findon ( my house)
3.a introduction of  international students life
4.study in Unisa
5.Unisa library
6.shopping in the city
7.visit Cleland wild life park
8.visit German village
9.visit Grange Beach
10.working in adelaide
11.cook a dish
12. introduction of HIFI earphone
13.Mp3 players
14. Heartstone
15.PUBG
16.leagues of legend
17.iphonex
18.laptop
19.FIshing
20.badminton
21.table tennis
22.why do people like gambolling
23.claw machine
24.world cup
25.why does china can not go to world cup
26. is online shopping good for economic
27.is drinking tea good for your health
28. is drinking coffee good for your health
29. what is early education
30.what is the differences between Goat milk powder and milk powder
31.how much time  takes a baby recognize your face
32.why is your hear get worse in Australic
33. Central market
34.Australian food coulture
35.Australia morning vs China
36.when is a good time for children to have sex education
37.why are games so addicted
38.Pu'er tea
39.computer mouse and keybord
40.milk ice cream
41.read a book
42.see a movie
43. culture difference
44.Pet
45.fruit
46.Australian night life
47.Adelaide hospital
48.grandma
49.online shopping in Ausralia
50.food safety
51.the voice
52 plant flowers
53.

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1. record your internal thoughts and feel about the course  and this task.
I am exited about the task, i have not done this kind of things before, but i am ready to go. We must have a lot of fun.