MUSC 108. Introduction to Music Technology - Fall 2013

Lab14-10 Stars and stripes EQ

[Overview] [Syllabus]

This lab will look at EQ effects.

Setup

Download StarsStripes.wav.zip.

Copy it to your Desktop.

Double click to create the StarsStrips.wav file on your Desktop.

desktop icons

Open Logic

Choose New from the File menu.

Click Empty Project

new empty project

Create 1 new Stereo Audio track.

create one stereo audio track

Add an Audio file

Open the Media Bin.

Add audio file

Use the Audio File mini menu and select Add Audio File.

In the Open File dialog, navigate to the Destkop and choose StarsStripes.wav.

after open

Drag copy the StarsStripes.wav to the Arrange window.

move to arrange window

Close the Media bin.

These controls manipulate scrolling and zooming of the wave file. Experiment.

scroll and zoom controls

You can see four distinct sections of the audio wave.

chop points

We want to segment the waveform and try different EQs on each segment.

Add three new audio tracks

Choose New from the Track mini menu.

new track

Add 3 audio tracks.

add three new audio tracks

You should see four audio tracks.

four audio tracks

Split 1

Position the Playhead around 13-4 in the Measures-Beats toolbar.

13-4 split

Choose Split by Playhead

Make sure Audio 1 is selected (light gray).

Audio1 selected

You split the track using any of these three methods.

Hint: Typing \ is the quickest.

Split Regions by playhead

Split 2

Zoom the track horizontally so you can see the ticks between 29 and 29.3

Position the Playhead at the 29-2 point.

Split 29-2

You can see the playhead position in the controls at the bottom of the window.

Split 29-2

Type \ to split.

Split 3

Double click the Playhead position and enter the following numbers.

Set 43-3-33-1

Press return and the playhead moves to that position.

Type \ to split.

Four segments

Scroll horizontally until you can see all four segments.

four segments

Move Segment 2 to track 2

Click and hold the header of segment 2. You'll see a yellow popup menu showing the start and end points of the segment.

click hold yellow locator

Drag down into track 2. Make sure the start point does not change.

drag move

Move segments 3 and 4

Do the same for segments 3 and 4. After you're done you should see this.

after move

Set Locators for Audio 1

Click the header for segment 1 and then click the Set Locators button.

Set locators

Turn on the Loop button.

Loop on

EQ on Audio 1

Make sure Audio 1 is selected (light gray). Insert Channel EQ on the Audio 1 track.

Insert Channel EQ insert Channel EQ

Choose the Bass Improve 01 preset.

Channel 1 EQ

Play

Click the Effect Bypass button to do an A/B comparison.

Close the Channel EQ window for Audio 1.

EQ on Audio 2

Audio 2 features the piccolo. The piccolo plays high freqencies. We want to make the other parts stand out a little more.

Make sure Audio 2 is selected (light gray). Insert another Channel EQ on the Audio 2 track.

Play and loop Audio 2

Click the header for segment 2 and then click the Set Locators button.

Turn on the Loop button.

EQ2 settings

Segment 2 EQ

Click the 500 Hz segment.

Click and drag the dB text. The vertical height of the green plot indicates an increase or decrease in dB.

Click and drag the bottom text. This affects the "Q" of the equalizer. Q refers to the bandwith of the EQ band. High Q is narrow bandwidth, low Q is high bandwidth.

Grab the green circle at the center of the band. Drag it right or left and listen to the frequencies change.

EQ move center band

Double click on each of the numbers and reset to.

500 Hz
+6.5 dB
0.25

Close the Channel EQ window for Audio 2.

EQ on Audio 3

In Audio 3 we'll use EQ to emphasize the high frequencies of the cymbals.

Make sure Audio 3 is selected (light gray). Insert another Channel EQ on the Audio 3 track.

Play and loop Audio 3

Click the header for segment 3 and then click the Set Locators button.

Turn on the Loop button.

EQ 3 settings

Turn off all Filter types in the row above the plot except for the second to last.

Turn on the Analyzer.

When the Cymbals play you'll see activity in the 4000 = 10000 Hz range. We want to emphasize that.

Segment 3 EQ

Click the 10000 Hz settings and change them to those shown.

3500 Hz
+10 dB
2.00

Experiment.

Close the Channel EQ window for Audio 3 when finished.

EQ on Audio 4

In Audio 4 we'll use EQ to emphasize the make the tuba part stand out.

Make sure Audio 4 is selected (light gray). Insert another Channel EQ on the Audio 4 track.

Play and loop Audio 4

Click the header for segment 4 and then click the Set Locators button.

Turn on the Loop button.

EQ 4 settings

Make these settings.

Segment 4 EQ

Experiment.

Close the Channel EQ window for Audio 4 when finished.

Play the whole track

Turn off the loop.

Double click the Stop button to return the playhead to the beginning of the song.

stop button

Click play.

Add Reverb

Click the Mixer tab and insert the Space Designer Reverb plugin on the Out 1-2 channel strip.

Mixer open

Choose the "01 Large Spaces - 06 Outdoor Spaces - 02.9s On The Open Field" preset.

Space Designer Reverb

Play

Press the Bypass button to do an A/B comparison.

Try other presets.

[Overview] [Syllabus]

Revised John Ellinger, January - September 2013