What is the sampling rate?
For example, let’s say you say “Ah” for 1 second.
When recording this “Ah” sound on a personal computer, the “Ah” sound is divided into tens of thousands per second, and each is divided into tens of thousands.
“The tone of this section was about this.”
“The length of this section was about this.”
Register it as data like this.
The personal computer continuously reads each of this divided data and outputs it as a “voice” called “Ah”.
Right now, “how many tens of thousands of sounds are collected per second” is called the “sampling rate”. (Also called “sample rate”)
Sampling rate
The more splits you make, the smoother the sound will be, and as a result, you will feel that the sound quality has improved!
What is bit depth?
Sample rate is “how many tens of thousands of sounds are collected per second.”
“How much capacity is given to each divided data (sampling)” is called “bit depth”.
Also called “number of quantization bits”, “number of sample bits”, “bit offset”, etc.
For example, if the bit depth is “16 bits”, the amount of information is 2 to the 16th power (65536) for one sample.
The higher the bit depth, the greater the expressiveness of the sound, such as the fineness and loudness of the sound, and as a result, I feel that the sound quality has improved!
By the way, the bit depth of most sound sources in the world is 16 bits.
that’s why
“Import music from a CD!”
“Import music downloaded from the Internet!”
In such cases, 16 bits is enough.
On the other hand, if you say “Wav what you recorded in your DAW comes out!”, it is better to have 16 bits or more.
This is because, for example, when processing audio effects with audio editing software, the sound deterioration can be reduced to zero by assigning additional bit depth (for example, 32 bits). (Though 16 bits is fine for the final output)
What’s more,
Please note that “bit depth” on this page has a different meaning than “bit depth” in the video.
Reference : What is bit depth (color depth)? Differences like 10bit/24bit/30bit
What is a bit rate?
Bit rate is the “amount of data per second”.
Reference : What is a bitrate? Relationship between image quality, sound quality and codec [Video / Audio]
The “sample rate” and “bit depth” presented above are
Sampling rate – how many tens of thousands of sounds are collected per second
Bit depth – how much to give each split data
Therefore, the product of these two values is the “bitrate”.
