what is low, mid, and high frequencies ?

Low, mid, and high frequencies are the three frequency ranges that make up the frequency spectrum of sound. Understanding these frequency ranges and how they affect sound is crucial in DJing and sound engineering. Here's a detailed explanation of each frequency range:

1. Low frequencies (LF): Low frequencies, also known as bass frequencies, are the lowest part of the frequency spectrum. They are typically between 20Hz and 250Hz and are responsible for the deep bass sounds in a track, such as a bass guitar or kick drum. These frequencies are important in providing a solid foundation to the mix and can help give a track a sense of power and energy.

2. Mid frequencies (MF): Mid frequencies, also known as mid-range frequencies, are the middle part of the frequency spectrum. They are typically between 250Hz and 4,000Hz and are responsible for the sounds in a track that are most easily heard by the human ear, such as vocals, guitar, and snare drum. These frequencies are important for creating a clear and balanced sound, as well as for making sure that the vocals are clearly heard over the rest of the mix.

3. High frequencies (HF): High frequencies, also known as treble frequencies, are the highest part of the frequency spectrum. They are typically between 4,000Hz and 20,000Hz and are responsible for the high-pitched sounds in a track, such as cymbals, high hats, and synths. These frequencies are important for adding brightness and detail to the mix, as well as for creating a sense of space and air in the sound.

In DJing and sound engineering, it's important to understand the role that each frequency range plays in the overall sound and to be able to adjust the levels of each frequency range using equalization (EQ) in order to create a balanced and desirable sound.