Transcript
Page 1: Week 5 homework modulation

Hi again, my name is Guillermo Delgado

from Mexico City and i am excited

because is week 5 of this great course

and all things are going really well with

my learning to improve my production

works. Again please excuse me about

my bad english but i am trying to do the

best in my assignments to get

everybody understand what i am trying

to teach. Until next week,

THANKS TO READ!

Page 2: Week 5 homework modulation
Page 3: Week 5 homework modulation

First lets think that a

Delay is a sound effect

that consists in

multiplication and delay

of an audio signal. The

processed signal is mixed

with the original.

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Knowing what a Delay is

then we can talk about a

variation of this

processors, the

modulators, in other words

The signals are repeated

with a slight delay and

subject to a small frequency

variation.

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Modulation effects are used

to add movement and depth

to the sound. Normally they

act by slowing the incoming

signal a few milliseconds and

using an LFO to modulate

the delayed signal. LFO can

also be used to modulate the

delay time at some effects.

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Page 7: Week 5 homework modulation

A low frequency oscillator (LFO)

is very similar to the sound

generating oscillators found on

synthesizers, but the frequencies

generated by an LFO are so low

that they can be heard. Therefore

only used for modulation

purposes. LFO parameters are

speed (or frequency) and depth,

also called intensity control.

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You can also control the ratio of

the signal affected (wet) and the

original signal (dry). Some

modulation effects include

feedback parameters that add

some of the output of the effect

back to its input.

Various modulation effects are

related to the pitch.

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Page 10: Week 5 homework modulation

This parameter adjusts the delay we want to be

repeated by duration, ie, how often will repeat the

signal.

There is an equation to calculate the delay time

(delay):

Multiplying the result by 1000, we get the value in

milliseconds. (1 sec = 1000 ms).

Alternatively you can use modern tools for

computing repetitions in your phone, tablet or

computer.

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Practical example:

How many milliseconds (ms) should I have

to adjust the repeats of a mono delay for

an echo to sound just after a measure

beat, if the meter is 4/4 and the song goes

to 118 bpm?

Apply the formula:

=

In other words a beat equals 0.508 secs?

Or what is the same 0.508 x 1000 = 508 ms

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Page 13: Week 5 homework modulation

What I understand

about feedback is the

number of times an

original sound signal

is repeated, we can set

any value between one

and infinity.

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In other words the signal output of

the delay is readmitted to the same

input to be processed and can be

repeated again and again and again.

The amount of feedback is controlled

by the user and what this means is

that the signal processor will enter,

and then will be delayed by the

amplifier while the entry will be

reentered in the amount of delay that

is required to be processed again.

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Page 16: Week 5 homework modulation

In my opinion Dry/Wet Mix

Parameter is the amount of

delayed sound that is mixed

with the original. You can set

parameter to Dry if no effect is

required or eventually rise the

knob to increase the amount of

effect until get total wet.

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DRUMS WITHOUT FLANGER DRUMS WITH FLANGER

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It is a typical effect used on

electric guitars. Is achieved by

performing a combination of

delay and LFO. That delay values

may vary between 1 and 15 ms

and low frequency between 0.03

and 1 Hz. To get the effect, part of

the low frequency signal is input

to the delay circuit adding to the

direct signal.

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Operation is based on a slight

delay constantly alternating the

modulation produced by the

LFO, getting a phase change of

the processed signal with the

original. Requires both output

levels or mixing original and

processed, are similar and greater

expression is achieved the higher

the frequency spectrum treaty.

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BASS WITHOUT CHORUS BASS WITH CHORUS

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The Chorus effect delays the original

signal. The delay time is modulated

with an LFO. Delayed and modulated

signal is mixed with the original

signal, dry.

You can use the Chorus effect to

enrich the incoming signal and create

the impression that they are playing

various instruments and there are

several voices singing in unison.

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The slight variations in the time

delay generated by the LFO

simulate the subtle pitch and

timing differences you hear when

several musicians and vocalists

perform together. The use of

chorus also adds fullness or

richness to the signal, and can

add movement to low or

sustained sounds.

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Again thanks for read my

presentation and hope to

be useful and clear with

my terms.

Until next week have a

good recording.