This document provides an overview of the graphical interfaces of 4 different synthesizers - ES1, ES2, ESP, and ESE. It describes the key sections and parameters of each synthesizer interface, including the oscillator, filter, amplifier, LFO, envelope, and other sections. It also reflects on learning about synthesizer interfaces from scratch and welcomes feedback to improve.

1. SYNTHESIZER
S
-SAMHITA SHILEDAR

2. A bit about myself 
Hi,
I’m Samhita Shiledar from India!
I recently completed my Chemical engineering and working in
same field now. I play piano and sing Indian Classical Music.
This lesson is for week 6 of Introduction To Music Production at
Coursera.org
My ppt is about overview of graphical interfaces of 4 different
synthesizers.
Hope you guys enjoy ;)

3.  A set of connected electronic building blocks that
isolate, manipulate and recombine the basic elements
of sound in order to create new artificial sounds.
 In this assignment i am going to compare graphical
interface of 4 different synthesizers. I will be using
Logic Pro 9 as my DAW.

4. COMPONENTS OF
SYNTHESIZER

5. A brief about all sections and
important knobs

6. Oscillator section
 The module that actually produces sound is called the
oscillator. This produces a constant tone.
 One knob is for choosing the wave form i.e. sine wave,
saw tooth, square, triangle etc
 A knob showing numbers 8, 16, 32 is for changing
octaves of the note chosen.

7. Filter Section
The filter is the module that shapes the tonal qualities (the bass & treble, if
you like) of the sound. It works by removing, or at least greatly reducing,
certain frequencies from the sound. Important knobs are:
 Different filter options are
1. Low-Pass (LPF)
2. High-Pass (HPF)
3. Band-Pass (BPF)
4. Band-Reject
5. Multimode
 Cut off frequency determines the frequency at which the filter starts to
take effect.
 Resonance is also known as Peak or Q. It is actually the amount of the
output of the filter that is fed back into the input. creasing the resonance
makes the filter effect more 'dramatic' - particularly with filter sweeps (they
sound more like PPEEEEOOOOOWWW than WWEEEOOOOWWW).

8. Amplifier Section
 It controls volume of the sound.

9. LFO Section
 LFO produces low frequency wave which is
superimposed with sound to create effects like vibrato.
 There are knobs for choosing
1. Waveform
2. Frequency

10. Envelope
 Envelope generator (EG) enables a more complex
loudness contours:
 It has knobs to control
1. Attack time
2. Decay time
3. Sustain level
4. Release time

11.  For further discussion, lets set some standard colour codes
and notations as:
 Oscillator section
 Filter Section
 Amplifier section
 LFO section
 Envelope section

12. ES1 synthesizer

14.  Oscillator parameters:. A number of related parameters that
directly influence the overall sound, such as Tune, are found in
the Global Parameters section of the interface.
 Filter parameters: These include the circular Filter area, and
Drive and Key scaling parameters. We use the filter to contour
the waveforms sent from the oscillators.
 Modulation parameters: The dark green/gray area houses the
modulation sources, modulation router, modulation envelope,
and amplitude envelope, which you can use to modulate the
sound in a number of ways.
 Global parameters: Global sound control parameters are
located on the bottom green/gray strip. This is where you can
assign and adjust global tuning, activate the in-built chorus, and
more. The chorus can be used to color or thicken the sound.

15. ES2 synthesizer

17.  Oscillator section: Three oscillators are given in this synthesizer. The
Triangle is used to set the mix relationships between the three
oscillators.
 Modulation router or Vector Envelope: The middle strip between two
highlighted section is the modulation router and the Vector Envelope.
You can use the buttons at the right end of this section to switch
between the two.
 The router links modulation sources, such as the envelopes and
other parameters shown in the lower portion of the interface, to
modulation targets, such as the oscillators and filters.
 The Vector Envelope is an extremely flexible and powerful
envelope generator, which provides extensive control over your
sound.
 Modulation controls and parameters: The area immediately below the
router is where you can assign and adjust the modulation generator
parameters (such as LFO and envelope parameters)

18.  Planar Pad: The square area at the right is a two-dimensional
controller known as the Planar Pad—which facilitates the
simultaneous manipulation of two, freely assignable,
parameters. The Planar Pad can be controlled using the
mouse, another controller, or the Vector Envelope.
 Random parameters: Situated below filter section. Used to
randomize sound parameters.
 Macro and MIDI controller parameters: They are situated at
the very bottom od the interface. The preassigned macro
sound parameters are perfect for quick tweaks to the ES2’s
sound (and that of ES2-based GarageBand instruments). You
can reassign MIDI control numbers for these parameters if
desired.

19. ES P synthesizer

21.  Oscillator parameters: The Octave parameters are also
found in this section.
 Effect parameters: The area at the extreme right
contains the Chorus and Overdrive parameters. These
can be used to color or thicken the sound.
 Extended parameters: Not shown in the image, the
extended parameters are accessed by clicking the
triangle at the lower left of the interface. These
parameters include bend and tuning functions.

22. ES E synthesizer

24.  Output parameters: The area at the extreme right
houses the Volume knob, responsible for the main
output level, and the Effect parameters. The effects can
be used to color or thicken the sound.
 Extended parameters: Not shown in the image, the
extended parameters are accessed by clicking the
triangle at the lower left of the interface. These
parameters include bend and tuning functions.

25. TEXT REFLECTION
This weeks assignment was very interesting as it was
about altogether different topic that last weeks. I had
never used synthesizers so it took a while to start literally
from scratch and explore different angles in every
synthesizer. Thanks a lot for taking time to read my
assignment. I hope you liked it. All the suggestions and
feedbacks are welcomed as always! 

26. THANK YOU! 

27. REFERENCES
 http://homepages.warwick.ac.uk/~esaag/analog.html
 Wikipedia
 http://web.mit.edu/klund/www/weblatex/node2.html
 http://documentation.apple.com/en/logicstudio/instrume
nts/chapter1section2.html