explain the usage of the 5 most important synthesis modules: oscillator, f…
TRANSCRIPT
![Page 1: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/1.jpg)
![Page 2: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/2.jpg)
![Page 3: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/3.jpg)
Hi! I am Mario. This is my fifth assignment
for “Introduction and Music Production”
at Coursera.org
![Page 4: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/4.jpg)
Hi! I am Mario. This is my fifth assignment
for “Introduction and Music Production”
at Coursera.org
I will be teaching about “Compare and
contrast an algorithmic and convolution
reverb. Demonstrate the difference and
the important features in both types of
reverb.”
![Page 5: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/5.jpg)
![Page 6: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/6.jpg)
To produce an original sound, a
synthesizer uses several units or modules
of generation and sound processing to
create a basic signal, and then change
the settings to get the desired tone.
![Page 7: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/7.jpg)
We are going to study the usage of the 5
most important synthesis modules:
![Page 8: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/8.jpg)
Oscillator
Filter
Amplifier
Envelope
LFO
We are going to study the usage of the 5
most important synthesis modules:
![Page 9: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/9.jpg)
![Page 10: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/10.jpg)
The VCO (Voltage Controlled Oscillator)
is an electrical voltage controlled
oscillator.
![Page 11: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/11.jpg)
The VCO (Voltage Controlled Oscillator)
is an electrical voltage controlled
oscillator.
Its purpose is to generate a waveform
rich in harmonics to allow effective
treatment by filtering section.
![Page 12: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/12.jpg)
Each waveform has a “sound
personality”, determined by its
harmonic content
![Page 13: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/13.jpg)
Each waveform has a “sound
personality”, determined by its
harmonic content
Sine Sawtooth Square Triangle
![Page 14: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/14.jpg)
a sine wave produces a simple clean sound
without harmonic
![Page 15: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/15.jpg)
a sine wave produces a simple clean sound
without harmonic
the sawtooth signal for its part contains all harmonics of decreasing amplitude and its
corespondant is quite soft and copper.
![Page 16: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/16.jpg)
a sine wave produces a simple clean sound
without harmonic
the sawtooth signal for its part contains all harmonics of decreasing amplitude and its
corespondant is quite soft and copper.
the squared signal contains only odd harmonics
of decreasing amplitude. The raw sound a little
hollow.
![Page 17: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/17.jpg)
a sine wave produces a simple clean sound
without harmonic
the sawtooth signal for its part contains all harmonics of decreasing amplitude and its
corespondant is quite soft and copper.
the squared signal contains only odd harmonics
of decreasing amplitude. The raw sound a little
hollow.
the triangular signal looks like a sine wave rich in
harmonics and sound closer to an oboe
![Page 18: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/18.jpg)
![Page 19: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/19.jpg)
The VCF (Voltage Controlled Filter) is
the filter section of a synthesizer
![Page 20: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/20.jpg)
The VCF (Voltage Controlled Filter) is
the filter section of a synthesizer
A Filter is used to remove frequencies
from the waveform so as to alter the
timbre.
![Page 21: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/21.jpg)
The main filter is the Low-Pass Filter
(LPF).
![Page 22: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/22.jpg)
The main filter is the Low-Pass Filter
(LPF).
Low-Pass Filters allows the lower
frequencies to pass through
unaffected and filters out (or blocks
out) the higher frequencies.
![Page 23: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/23.jpg)
Another common filter is the High-Pass
Filter, it does the opposite of a LPF and
allows the higher frequencies to pass
through unaffected and filters out
(blocks-out) the lower frequencies.
![Page 24: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/24.jpg)
![Page 25: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/25.jpg)
The VCA (Voltage Controlled
Amplifier) 's role is to amplify the signal
(preamp) before output to the
external amplification.
![Page 26: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/26.jpg)
By varying a voltage input, we can
change the amplitude of a signal,
making it quieter and louder by
supplying a smaller or larger voltage
as a control signal.
![Page 27: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/27.jpg)
An Amplifier uses an Envelope to
control the overall loudness (or
amplitude) of the sound over time.
![Page 28: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/28.jpg)
![Page 29: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/29.jpg)
There are many variations of
envelopes available. However, the
most common envelope has 4
parameters:
![Page 30: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/30.jpg)
There are many variations of
envelopes available. However, the
most common envelope has 4
parameters: • Attack time
• Decay time
• Sustain level
• Release time
![Page 31: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/31.jpg)
There are many variations of
envelopes available. However, the
most common envelope has 4
parameters:
This is usually called ADSR Envelope.
• Attack time
• Decay time
• Sustain level
• Release time
![Page 32: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/32.jpg)
A (Attack): Just after pressing a key, the envelope opens from
zero to full. This is controlled by the attack time. An attack time
of zero means that the envelope goes from zero to full instantly.
Increasing the Attack time means that it will happen more
slowly.
![Page 33: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/33.jpg)
D (Decay): While the key is still pressed, the envelope drops from
full to the sustain level. This is controlled by decay time. A decay
time of zero means that the envelope goes from full to sustain
instantly. Increasing the decay time means that this will happen
more slowly.
![Page 34: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/34.jpg)
S (Sustain): While the key is still being pressed, the continuing
envelope just remains at the Sustain level. This is set by sustain
level.
![Page 35: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/35.jpg)
R (Release): When the key is released, the envelope then drops
from the sustain level to zero. This is controlled by Release time. A
release time of zero means that this will happen instantly.
Increasing the Release time means that this will happen more
slowly.
![Page 36: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/36.jpg)
![Page 37: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/37.jpg)
Tomodulate is to exert control or
affect or influence or shape.
![Page 38: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/38.jpg)
Tomodulate is to exert control or
affect or influence or shape.
Modulation is used to breathe more
life into a sound and make it more
expressive.
![Page 39: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/39.jpg)
Tomodulate is to exert control or
affect or influence or shape.
Modulation is used to breathe more
life into a sound and make it more
expressive.
A Low Frequency Oscillator (LFO) is a
very common modulator
![Page 40: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/40.jpg)
Basically, an LFO is an oscillator
working in a range of subsonic
frequencies.
![Page 41: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/41.jpg)
Basically, an LFO is an oscillator
working in a range of subsonic
frequencies.
It acts directly on the generator.
![Page 42: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/42.jpg)
Basically, an LFO is an oscillator
working in a range of subsonic
frequencies.
It acts directly on the generator.
Several settings can be varied and
the effect intensity: speed modulation,
frequency, waveform used ...
![Page 43: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/43.jpg)
![Page 44: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/44.jpg)
To simulate a vibrato effect, the
LFO is modulating at a certain
speed the frequency of the signal
from the VCO (Voltage
Controlled Oscillator).
![Page 45: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/45.jpg)
To simulate a vibrato effect, the
LFO is modulating at a certain
speed the frequency of the signal
from the VCO (Voltage
Controlled Oscillator).
Similarly, a tremolo is obtained by
modulating the LFO VCA
(Voltage Controlled Amplifier)
volume.
![Page 46: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/46.jpg)
![Page 47: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/47.jpg)
This is my last work for “Introduction to
Music Production”, we’ve learnt a lot of
things this last weeks, a lot of information,
so I tried to present the concepts as
clearly as possible.
![Page 48: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/48.jpg)
![Page 49: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/49.jpg)
Thank you for taking the time to read my
lesson
![Page 50: Explain the usage of the 5 most important synthesis modules: Oscillator, F…](https://reader033.vdocument.in/reader033/viewer/2022042607/55a3d3b01a28ab0b6a8b47cc/html5/thumbnails/50.jpg)
Thank you for taking the time to read my
lesson
I hope I was clear and the work I’ve
done could be useful for people without
this knowledge