1. EQUALISATION
S3 Music Technology

2. Starter
An engineer has recorded a vocal track. There is audible ‘popping & blasting’ on the recording.
Identify 2 possible ways to correct this recording problem.

3. Today’s Lesson
To understand the concept of EQ and how to apply it to a range of audio tracks
Success Criteria
I can explain what EQ is and why we use it to improve audio tracks.
I can add EQ to different instrument/vocal tracks.
I have used EQ in my foley project to improve the quality of sound.

4. EQ (Equalisation) A sound processor
Used to control the frequency spectrum in a piece of music (to give an equal balance of sound

5. Our Ears Example of Low Frequency Example of High Frequency
Real-life - You’re next door to a party & hear the boom of the speakers
Technology – the low boom of a bass drum
Example of High Frequency
Real-life - You sit next to someone on a bus who is listening to music through headphones
Technology – sibilance on an audio recording

6. Different Frequencies of Sound
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7. Bass Guitar – 60 – 1000hz
Human Voice – 250 – 4000hz
Cymbals – 7000 – 15000hz

8. Changing Frequncies
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9. When would you…. Muffled Vocal White noise Hollow guitar
Boost Low Frequency
Reduce Low Frequency
Boost Mid Frequency
Reduce High Frequency
White noise
Hollow guitar
Popping & Blasting

10. EQ on mixcraft
ACOUSTICA EQ
EZQ Equaliser

11. Your Turn 3H2 folder – Materials - EQUALISATION TASK
LEAD VOCAL - Use EZQ Equaliser to give a warm, bright tone.
BASS - Use Acoustica EQ and add preset ‘Basic Low Boost’
DRUM KIT – use acoustica EQ to manually reduce the bass & boost cymbals
GUITAR – Use EZQ equalizer to find a good sound