Over the limits of human hearing! High resolution doesn’t make sense?
What is the limit of the ability to discriminate human sounds?
Although there are individual differences, the human audible range is said to be 20 Hz to 20 kHz.
The sampling frequency of the CD is 44.1 kHz.
In theory, this value can be reproduced up to 22.05 kHz of the original sound, so it can sufficiently cover the human audible range.
In that case, the question arises that high-resolution sound quality, which has higher specs than CDs, may not be audible to the human ear.
Actually, there are many negative opinions from a scientific point of view, and it remains controversial.
<Reference: High Resolution Audio-Wikipedia>
However, the sound is highly dependent on experience, so if you are interested, you should give it a try.
Necessary environment to enjoy high resolution
Whether it makes sense or not, there are a few things you need to prepare for to enjoy high resolution.
The required environment is as follows.
High resolution sound source
High-resolution compatible headphones / earphones / speakers
High resolution compatible terminal
Let’s explain each environment.
High resolution sound source
There are various media for high resolution audio sources.
The easiest of these is probably the Hi-Res Audio source that is delivered online.
If you are a high resolution distribution site, you can get many sources of sound.
Note that listening with high-resolution headphones will not result in high-resolution audio.
High-resolution compatible headphones / earphones / speakers
In addition to high-resolution audio sources, prepare items such as compatible headphones and earphones.
It is quick to check if there is a high resolution mark on the product package to see if it is compatible.
Please note that most wireless headphones do not support high resolution playback because they compress data during transmission.
In the case of wireless technology, only aptX / aptX HD compatible items or SONY LDAC compatible devices support high resolution.
In any case, the high-resolution branding is a milestone.
