Low & High Pass Filters

Usually Low and High Pass Filters are used to define the highest and lowest frequencies of interest in the signal.

Low Pass Filter:

Low Pass Filter can be also called High-cut filter or treble cut filter. This type of filter cuts the high frequencies and lets the lows pass through.

High Pass Filter:

High Pass Filter can be also called Low-cut filter and also Bass-cut filter. This filter allows higher frequencies to pass through the filter. While recording audio, high pass filter can help us control problems with low frequencies.

High and Low pass Filters are calculated by using frequency and amplitude. Frequency is measured in Hertz (HZ) while amplitude is measured in decibels (dB).


A video clip about the difference between Low and High pass Filters:

https://www.youtube.com/watch?v=JndvN1ngSi4