![\"Audio](\"https:\/\/theyoogle.com\/wp-content\/uploads\/2020\/07\/audio-frequency.jpg\")
<\/p>\nThe meanings of Hz and bit of sound sources<\/p>\n
<\/p>\n
The meanings of Hz and bit of high resolution sound sources are “how accurately a second was made” and “how accurately the pitch width and sound pressure of the sound were recorded.”<\/p>\n
![\"Audio](\"http:\/\/www.realhd-audio.com\/wp-content\/uploads\/2014\/02\/ultrasonics_chart.jpg\")
<\/p>\n
We use Hz (hertz) and bit (bit) to represent music data.<\/p>\n
When I started researching hi-res audio sources, I was wondering “what is Hz? What is bit?”, So I will write an article.<\/p>\n
As I mentioned each time, this article was written by someone who is not familiar with audio as a memo.<\/p>\n
Please be careful as you may have misunderstanding or misunderstanding.<\/p>\n
In short, Hz is “whether to record the sound and how much a second” to represent the, bit is “What was finely recorded how much the width and pressure of the sound of the highs and lows of the sound” represents the increase.<\/p>\n
What is Hz?
\nWhat is a bit?
\nHigh bit and high Hz sound sources are easier to deliver to consumers
\nabstract
\nSponsorship<\/p>\n
What is Hz?
\nHz is a unit that expresses the sampling frequency (sampling frequency).<\/p>\n
This is “how good a second is.”<\/p>\n
If you make the digital clock display thinner, it will be “plugged in” and “smooth”.<\/p>\n
If the digital display timer also shows up to 1\/1000 of a second, it will display the time as if it were connected to the human eye.<\/p>\n
Even if it can’t show the time between each number.<\/p>\n
In the same way as this, when the “Hz = value of the precision with which the data is taken per second” becomes extremely fine, you can hear it as if you were connected and you can hear it with the so-called good sound.<\/p>\n
The sampling frequency of CDs is 44.1 kHz, and many high-resolution audio sources are sold at 96 kHz or 192 kHz.<\/p>\n
“K” is the same as kg, which means 1000, so 44.1 kHz means 44100 Hz.<\/p>\n
In other words, a 44.1 kHz CD is significant because it is divided into 44,100 pieces to express the sound for one second.<\/p>\n
Since the high-resolution sound source is 96 kHz or 192 kHz, it means that the original sound is expressed in more detail than the CD.
\n(One second is divided into 96000 and 192000)<\/p>\n
Therefore, it seems that high-resolution sound sources usually sound good.<\/p>\n
High resolution sound source distribution site: e-onkyo music<\/p>\n
What is a bit?
\nA bit is the smallest unit that a computer handles.<\/p>\n
It may be difficult to understand when it comes to the smallest unit, but in Japan today, 1 yen is the smallest unit, and it is the same feeling that the price is not expressed in intervals of 1 yen or less. (In the case of daily life. Without considering actions or changes.)<\/p>\n
There is no 1.3 yen and it looks like there is no 0.9 yen.<\/p>\n
You can express 1 yen, 2 yen, 1096 yen, etc., and all prices are expressed in 1 yen intervals.<\/p>\n
Therefore, in everyday life, 1 yen is the minimum unit for expressing price.<\/p>\n
In the case of a computer, that “1 yen” is “1 bit”.<\/p>\n
In terms of sound, the bit seems to correspond to the width of the tone and the sound pressure of the sound.<\/p>\n
The difference according to the number of bits is, for example, when the sound in the world can be expressed only with the three numbers 10, 15, 17 and 20, and when there are 10, 13, 15, 17 and 20, the sound is more precise. Which one can you express? It is so.
\n(I think it’s correct, but it may be wrong …)<\/p>\n
How small must the bit be to express the sound? it is.<\/p>\n
If you can only express with 10, 15 and 20, there are some parts where you have to change the sound you want to express with 16 and 17 to “15!” Or 8 and 9 to “10!” First of all, if 16 or 17, 8 and 9 can be expressed as they are, it will be more faithful to the original sound.<\/p>\n
It is better to be able to express 13.22222 with 13 instead of 14, and firstly, if you divide the decimal point as 13.2 into small pieces so that they are expressed as they are, it will be more faithful to the original sound.<\/p>\n
This is why sound recorded with high bits has more depth and breadth, isn’t it? It seems .<\/p>\n
Specifically, it appears that 16 bits are expressed in the fineness of 2 to the 16th power, and 24 bits are expressed in the fineness of 2 to the 24th power.<\/p>\n
High bit and high Hz sound sources are easier to deliver to consumers
\nIn the case of PC audio, the original sound is converted to digital data and saved on the PC, and then converted to analog again for listening.<\/p>\n
The stream is original sound \u2192 digital data \u2192 analog.
\n(The flow is the same for CDs, but CDs contain data on CD, but in the case of PC audio, it is stored on the PC’s HDD or SSD.)<\/p>\n
Until now, when putting the recorded sound on a CD, it seems that the part that would have little effect on the sound quality, but because it can be sold free of charge due to the spread of the Internet, was somewhat omitted to some extent. I mean, it looks like I tried to sell it without skipping it.<\/p>\n","protected":false},"excerpt":{"rendered":"