Compare the difference between bit, khz and kbps! High resolution doesn’t make sense?
Sound quality comparison!
It is quick to judge whether the sound quality is good or bad from the data.
However, there are several factors that make up sound quality.
Therefore, in this article, I explained the sound quality in a rather broken way.
If you are a little interested in sound quality, check it out.
Difference between bit, kHz (kilohertz) and kbps (kilobby PS)
What is a bit?
What is kHz (kilohertz)?
What is kbps?
High-resolution sound quality and CD comparison
Over the limits of human hearing! High resolution doesn’t make sense?
Necessary environment to enjoy high resolution
High resolution sound source
High-resolution compatible headphones / earphones / speakers
High resolution compatible terminal
High resolution recommended elements
ACTIVE “CT10”
Difference between analog data and digital data
Difference between lossless compression (lossless compression) and lossy compression (lossy compression)
Lossless compression (lossless compression)
Lossy compression (lossy compression)
About the uncompressed sound source
Difference between bit, kHz (kilohertz) and kbps (kilobby PS)
The next three units are important for measuring sound quality.
little
kHz (kilohertz)
kbps
Let’s briefly explain each unit.
What is a bit?
bit is the number of quantization bits.
Here, it is easy to understand if you think of it as “the resolution (fineness) of the sound itself”.
The higher the value of this bit, the smaller and finer the sound can be reproduced.
In other words, it is more faithful to the original sound.
However, there is a disadvantage that the amount of data increases when the bit is large.
What is kHz (kilohertz)?
kHz is the sampling frequency.
It’s easy to understand if you think of it as “the number of data used in the expression of sound per second”.
The higher this number, the greater the range that can be recorded.
Also, kHz is one of the numbers often used to express headphone specifications.
If you look at the specification table, you will often see numbers like “20Hz to 20kHz”.
This indicates the range of supported ranges.
The lower the number on the left, the better the bass can be heard, and the higher the number on the right, the greater the playback range.
What is kbps?
kbps is the so-called bit rate.
Also known as “bits per second” or “kilobits per second”.
Unit that expresses how many kilobits of data can be transmitted per second.
Kbps can be calculated using the following formula.
kbps = bit x kHz x number of channels
The number of channels is the number of speakers, for example, in stereo, it is “2”.
In theory, the higher the number of processed bits per second, the higher the sound quality.
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High-resolution sound quality and CD comparison
Let’s compare CD and high resolution sound quality from a data point of view.
little kHz kbps
16 bit CD 44.1-48 kHz 1,411.2 kbps
High resolution Exceeds 44.1 kHz / 16 bit
Those that exceed CD specifications are defined as high resolution.
Specific examples are as follows.
44.1 kHz / 16-bit: CD specifications
48 kHz / 16-bit: CD specifications
44.1 kHz / 24 bit: high resolution (the number of quantization bits is greater than the CD specification)
48 kHz / 24 bit: high resolution (the number of quantization bits is greater than the CD specification)
96 kHz / 16 bit: high resolution (sampling frequency is higher than CD specification)
96 kHz / 24-bit: high resolution (both higher than CD specs)
96 kHz / 12 bit: not high resolution (low number of quantization bits)
32 kHz / 24 bit: not high resolution (sample rate is low)
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