Music Made Easy: FILTER

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Music Made easy - Filter

Filters are circuits that perform signal-processing functions. They specifically are used to remove unwanted frequency components from the signal, to enhance wanted ones or both.
And that’s it, it’s that simple.

An “audio filter” is a frequency-dependent amplifier circuit and is used to alter the frequency content of a sound.

FILTERS

Filters can be of different types. In Audio, however, you would come across these basic ones.
– High-pass: To let high frequencies pass and block low frequencies
– Low-pass: To let low frequencies pass and block high frequencies
– Band-pass: To let only Mid Frequencies Pass and block both high and low frequencies…

As the name suggests, frequency is the number of occurrences of a repeating event per unit time.
For audio signals, the number of vibrations an instrument or sound creates in one unit of time is the frequency of the sound. 

Audio-fact: Frequency is commonly measured in cycles per second (CPS) or hertz (Hz). Humans usually hear audio frequencies in the range of 20Hz to 20kHz.

Since a filter is a frequency-dependent amplifier, in its most basic form, the audio filter is most commonly used to pass or attenuate some frequency ranges. Filters are typically used to remove unwanted frequencies in a given sound. These unwanted frequencies are also called “dirt”.

In this video, we break down in a simple way how to use a filter to remove unwanted dirt in an audio signal.

To get an understanding of more such terms, refer to our Music Made Easy series, where we explain complex terms in its simplest form.

Now, put your understanding to better use by learning to produce music with our Music production and /or Audio Engineering program. Lets make this happen,  get in touch with a representative today.

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