The audio filter changes frequency by increasing, boosting, or amplifying a range of frequencies. A filter could also decrease, delete, cut, attenuate, or pass a frequency range. For example, using a low-pass filter, you could remove the traffic noise from a recording of two people talking in a city.
In particular, we will cover the following filters:
- Low-pass filter
- High-pass filter
- Band-pass filter
- Low-shelf filter
- High-shelf filter
- Band-stop filter
- Peak filter
Let’s start with the low pass filter.
Typically, the minimum cut-off frequency is 150 Hz, the maximum cut-off is 7.5 kHz, the...