Equalizers And Filters_Instuctions.pdf - Equalizers And...

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Equalizers And Filters Assignment
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Equalizers And Filters Assignment Equalizers (also known as EQ’s) are dynamic effects (in both software or hardware forms) that adjust the loudness of specific frequencies, We humans have a range of hearing from about 20Hz to 20,000Hz. Audio EQs work within that range of frequencies. EQ’s are used to remove or cut unwanted frequencies in an audio signal. Or they can also be used to enhance or boost frequencies that we want in an audio signal. This is done via frequency filters. One thing to know is that all EQ’s will have the same general controls / parameters the only thing that changes is the graphic representation of how they look. There are a few types of EQ’s and each work in frequency ranges, or “bands.” Each type has their specific way to deal with the band of frequencies. In this assignment, just follow along with the instructions. They are step by step with lots of pictures to help you out along the way. For this assignment, start by downloading the Logic session for this assignment. You will need to turn in your Logic session file after completing this assignment. Make sure it has been re-named. Name the logic file your name and RPR EQs (Last_First_PRP EQs). Example: Doe_John_RPR EQs.logicx Open the renamed session file, and follow the step by step instructions we have for you. If you not getting why we are asking you to do some of this, just keep following the instructions, it will start to make sense as you go through the assignment. Its looks like a lot to do but with all the diagrams its really not that much. Note : get in the habit of saving your work as you go. Track 1: (White Noise) 1) Graphic EQs. A graphic EQ typically consists of a bank of slider controls used to boost or cut fixed frequency bands. Graphic EQs are audio filters used to isolate bands, usually in a bell shape around a central band. There can be as many as 31 band to as little as 2 bands in a graphic EQ. A 2 band EQ will normally be labeled Bass & Treble. You may have seen a graphic EQ on a consumer home stereo system.
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(Example of home style 7 band graphic EQ) Graphic EQs are normally used more in live sound to tune a room to make it sound better as we broadcast the audio into the room. Any live sound engineer will normally have a Graphic EQ on hand. In the diagram below you can see a graphic 31 Band EQ in Logic. There is one parameter (volume slider) per band, with each center frequency given at the top of each fader. A 31 band EQ is called 1/3 octave EQ and the center frequency of each band is spaced 1/3 of an octave away from the center frequency of the adjacent bands, so that three bands (three sliders on the front panel) cover a combined bandwidth of one octave.
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When you turn up a band, it will affect the center frequency and the frequencies close by to each side of the center.
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Start by selecting track one and also soloing it (it may already be done). Track one is white noise; it sounds like the static sound of old TV’s with no station. We are using
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