9. Modulated effects

Question 1

Explain chorus

Answer 1

Modulation effect that simulates multiple instruments/voices performing simultaneously by duplicating an audio signal.
The copied signal copy of signal is sightly delayed and detuned using LFO, breathing ‘shimmering’ effect (controls: wet dry, rate, intensity)

Question 2

What is flanger

Answer 2

Modulation effect, which is essentially a high pass filter, which adds movement (sweeping, comb filter) and has metallic sound

Comb filter occurs when the delayed signal is combined with dry, creating comb filter peaks and troughs in frequency response

Question 3

What is phasing

Answer 3

They duplicate the audio signal, one copy is run through an all-pass filter

This changed the phase of the waveform and when signals are combined, certain frequencies are boosted or cut because of the phase cancellation between signals, creating movement. Not to be confused with flanger, it is warmer and less metallic

Question 4

What is wah-wah

Answer 4

it is essentially all band pass filter acting in a wide tone sweep as the pedal is pressed motion

Question 5

explain pitch-shifting

Answer 5

Alters the pitch of sound by changing the wavelength of the note in real time