StarTube EP09 Headphone Industry Instruction Manual
- June 4, 2024
- StarTube
Table of Contents
StarTube EP09 Headphone Industry
Abstract
With a variety of headphones on the market with different features to choose from, there are certain common core specifications such as sound quality which can be used to assess which product is right for you. In this episode of StarTube, we’ll walk you through the types of the headphone and their specs that you’ll need to know as a business man.
Types of Headphones
In terms of types, there’re earbuds, over-ear headphones, on-ear headphones, bone conduction headphones and Bluetooth headphones.
Earbuds
Earbuds are also known as in-ear headphones, this type is a classic choice
especially for sports fans and teenagers who need the sound in a rather noisy
place. It is easy to carry and can offer some nice sound quality to the ear
while providing some level of noise-cancelling function by physically block
them out.
Over-ear headphones
Over-ear headphones sit on top of your head and use adjustable earcups to hold
you ears. This type can be closed-back or open-back according to different
purposes. Open-back headphone allows air to go through the earcup from the
back of the speaker driver, thus making the resonance and low-frequency sound
very robust, however, it provides less privacy and you can barely use it with
noises around. Regarding the close-back headphones, the sound could be less
natural and the low frequencies might be too strong, but the privacy and
noise-proof is much better.
On-ear headphones
On-ear headphones have smaller earcups compared with over-ear headphones. In
terms of sound quality, there are no major differences between over-ear and
on-ear type, but on-ear headphones are generally lighter and easier to carry.
The only type difference would be on-ear headphones can not have ANC(active
noise cancellation) function, which would be a important spec for certain type
of people. 
Bone conduction headphones
Bone conduction headphones are unique for its style and sound system. Instead
of blocking the ear canal, this type of headphone send vibrations to the bones
in the inner ear, making it possible for hearing-disabled people to use.
Bluetooth headphones
Bluetooth headphones are also known as wireless headphones, using Bluetooth
technology to connect two devices via radio waves. The best part of this kind
is the convenience of getting rid of the pesky cord while sacrificing part of
the sound quality. There are different forms of this type including earbuds,
headphones and bone conduction as mentioned above.
Despite all the different forms of the headphones, they do share some common traits regarding the sound quality. There are some specs to judge their performances on the most basic level without taking their unique features into account.
Headphone drives
The driver functions as the element that transmits and converts electrical
signals into sound waves perceivable for the user. Manufacturers often
emphasizes on the diameter of their drivers due to the fact that it is
generally considered the larger it gets, the better sound quality it can
offer. That is particularly true for low-frequency sounds.
Specifications of Headphones
Headphones share some common traits regarding the sound quality. There are some specs to judge their performances on the most basic level without taking their unique features into account.
Sensitivity and sound pressure
Sensitivity means the ability to perform on the largest volume. This trait is
also referred to as the sound pressure. This parameter indicates how
efficiently an electrical signal is transformed into a sound wave and it also
helps to understand how the volume changes the voltage.
Impedance(electrical resistance)
Impedance is measured in Ohms which indicates how much power is required to
boost the headphone. The higher it is, the more energy it needs.
However, low-impedance is not exactly the perfect solution. The current low-
impedance headphone requires often tends to bring vibration and noise, causing
perceivable background hiss when running.
Frequency response
Frequency response indicates the frequency range the headphone can produce,
which is measured in Hertz(Hz). The higher number represents the higher notes
while the lower number brings bass sound.
The curve of frequency response can help to choose the type of headphone that
suits the demand, for instance: if the bass sound is important, choose the
ones with lines fall late into the deep base, if the headphone is used for
singing, choose the ones that is heavy on the mid-range frequencies where
there is no major rise and fall, if the headphone needs to resonate on
trebles. Choose the ones with good extension in the high frequency range and
seemingly flat in that area.
Total harmonic distortion(THD)
Total harmonic distortion refers to the amount of distortion happens to the
sound, which is usually more perceivable at a high volume. This happens
because the headphones produce sound via vibrations on the diaphragm, which
might not be vibrating fast enough at high volumes and causing the sound
distortion, the smaller it is, the better it sounds.
However, low-impedance is not exactly the perfect solution. The current low-
impedance headphone requires often tends to bring vibration and noise, causing
perceivable background hiss when running.
Product Recommendations
Based on the function and features, we put together a list of product for you
to choose from, these suppliers offer good quality headphones on different
price levels.
Raw Material Prices of This Month
The producer price index is considered generally stable from last month.
Still, the mining and washing of coal products have seen a major increase due
to the global energy crisis.
You can see the details here.
Producer Price Index for Industrial Products
Indicators [Producer Price Index for Industrial Products
(preceding month=100)]
|
Sep-21
|
Aug-21
|
Jul-21
Total| 101.2| 100.7| 100.5
Mining and Washing of Coal| 112.1| 106.5| 106.6
Extraction of Petroleum and Natural Gas| 99.1| 98.8| 105.9
Mining and Processing of Ferrous Metal Ores| 91.3| 98.5| 103.6
Mining and Processing of Non-Ferrous Metal Ores| 101| 100.7| 100.2
Mining and Processing of Non-metal Ores| 100.4| 100.6| 100.4
Mining and Support Activities| 95.5| 99.8| 105
Processing of Food from Agricultural Products| 99.9| 100| 100
Manufacture of Foods| 100.2| 100.3| 100.2
Manufacture of Liquor, Beverages and Refined Tea| 100| 99.7| 100.2
Manufacture of Tobacco| 100| 100| 100
Manufacture of Textile| 100.4| 101| 100.6
Manufacture of Textile, Wearing Apparel and Accessories| 100.2| 100.1| 100.2
Manufacture of Leather, Fur, Feather and Related Products and| 100| 100.1|
100.3
Footwear| | |
---|---|---|---
Processing of Timber, Manufacture of Wood, Bamboo, Rattan,
Palm and Straw Products
|
100.4
|
100.1
|
100.4
Manufacture of Furniture| 100.5| 100.1| 100.5
Manufacture of Paper and Paper Products| 100.1| 99.7| 99.4
Printing and Reproduction of Recording Media| 99.9| 99.8| 100.1
Manufacture of Articles for Culture, Education, Arts and Crafts,
Sport and Entertainment Activities
|
100.2
|
100
|
100.3
Processing of Petroleum, Coal and Other Fuels| 103.3| 101| 102.6
Manufacture of Raw Chemical Materials and Chemical Products| 102| 101.9| 100.8
Manufacture of Medicines| 99.7| 100| 99.8
Manufacture of Chemical Fibres| 98.7| 101| 101.8
Manufacture of Rubber and Plastics Products| 100.1| 100.1| 100.1
Manufacture of Non-metallic Mineral Products| 102.9| 99.9| 98.9
Smelting and Pressing of Ferrous Metals| 101.8| 102.2| 99.8
Smelting and Pressing of Non-ferrous Metals| 102.9| 101.4| 99.9
Manufacture of Metal Products| 100.7| 100.6| 100.5
Manufacture of General Purpose Machinery| 100.2| 100.2| 100.3
Manufacture of Special Purpose Machinery| 100.1| 100.2| 100.2
Manufacture of Automobiles| 100.2| 100.1| 100.1
Manufacture of Railway, Ship, Aerospace and Other Transport
Equipments
|
100.1
|
100.3
|
100.2
Manufacture of Electrical Machinery and Apparatus| 100.5| 100.4| 100.5
Manufacture of Computers, Communication and Other
Electronic Equipment
|
100
|
100.1
|
100.6
Manufacture of Measuring Instruments and Machinery| 99.9| 100| 100.5
Other Manufacture| 100.1| 100.1| 100.3
Utilization of Waste Resources| 101.9| 100.2| 99.8
Repair Service of Metal Products, Machinery and Equipment| 100.3| 100.1| 100.2
Production and Supply of Electric Power and Heat Power| 100.4| 99.6| 100
Production and Supply of Gas| 102.5| 101.7| 100.2
Production and Supply of Water| 100| 100| 100.1
Data Sources: National Bureau of Statistics
If you have any questions, contact us, we value your feedback: Ben@made-in-
china.com
Made-in-China.com
Buyer Service Team
References
- in-china.com
- Made-in-China.com - Manufacturers, Suppliers & Products in China
- headphone, headphone online trading, Hot Selling headphone on Trading.made-in-china.com
- Source Headphone Products from Manufacturers & Suppliers in China
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