The higher the frequency and bitrate at the time of recording, the better the sound?
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Is PC recording okay?
You know that the audio interface used for PC recording (hereinafter referred to as audio IF) has a notation like “24bit-96kHz”. It is a notation that corresponds to the production of the so-called high-resolution sound source.
* ↑ It seems that 24bit-192kHz is mainstream these days.
This number is significant and can have an effect during recording. Isn’t it used like “Isn’t it better to have a bigger number?”
I will tell you the idea of frequency and bit rate, and what kind of settings you should do if you want to make a sound source with high sound quality. Let’s optimize the recording settings for home recording!
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What are bit rates and frequencies in recording?
What is the effect of frequency and bit rate?
Optimal frequency and bit rate for singing and recording
High bit rate/high frequency recording is recommended even when making a CD
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What are bit rates and frequencies in recording?
Bit rate and frequency
24bit-192kHz
24 bits is called the “bit rate” and 192 kHz is called the “frequency”. Once this is determined, the bitrate of the final sound source will be determined. The bit rate is the amount of information. It’s easy to assume that the higher the number, the better the sound, but goodness of sound = high bitrate doesn’t always add up.
Most audio IFs are initially set to “16 bit, 44.1 kHz”. So unless you change the setting, it doesn’t record at high speed like “24bit-192kHz”. I think there are many cases where I don’t really care about this area.
“16 bit, 44.1 kHz” is the speed of the CD. If you don’t generate a wave file at this speed, you won’t be able to burn it to a CD. It is the most hassle-free fare to drive normally. I also record at CD rate for a simple recording.
So if you increase the overall bitrate, will the sound quality improve?
What is the effect of frequency and bit rate?
Manipulating the sound quality during recording will increase the amount of information. How does increasing the amount of information affect the sound by adjusting the frequency and bit rate? Let’s look at the effects of frequency and bitrate.
Frequency (sampling rate)
Increasing the frequency will make the sound softer. This is because there are more points to pick up the sound.
The upper limit of the frequency that can be recorded differs approximately twice between 44.1 kHz and 96 kHz. You will be able to record high-frequency sounds well. The sound isn’t twice as good, but when recording acoustic instruments, 96kHz is said to be able to record more treble.
Bit rate
Increasing the number of bits will make the volume of the sound clearer.
Expressing the relationship between frequency and number of bits as above, “So the higher the better, the better!”. However, not many people can distinguish between a sound source made with “24bit-192kHz” and a sound source made with “16bit-96kHz”. This is because it reproduces even the parts that are inaudible to the human ear. That’s why some people say that they can’t tell the difference even if they listen to music on a device that has high resolution. I’m not bad at listening.
Recommended DTM Books
There is a book that carefully explains bitrate/frequency and the points that beginners can easily trip over with DTM. I also try to open this book as soon as I have trouble recording. It’s a book by Ken Fujimoto, famous in the DTM world, so you can rest easy ^^
