All Articles Synths & Sound Design
Peter Schwartz on Mon, November 7th 0 comments
Learn the essentials of subtractive / analog synthesis in this excellent four-part series with Peter Schwartz. Part two delves into the sound creation components of the analog synthesizer.
Read Part 1 of this series here.

Oscillators: Pitch and Timbre

Figure 1: Tuning and Waveform controls of an oscillator from Logic’s ES-2 synth plugin 

Noise 

Figure 2: The irregular, random waveform of white noise 

Filters: for Timbre Modification

Figure 3: Highlighted in red, the filter section of the Arturia SEM plugin, modeled after an Oberheim synth from the 1970’s. Note the small mixer section at the bottom of the filter area for adjusting the incoming levels of two independent oscillators and a noise source (labeled “NOI”). 
Figure 4: Cutoff frequency and resonance controls of the lowpass filter in Logic’s ES-M 

Amplifier and Envelope Generator: Amplitude and Duration 

Figure 5: The audio signal path in a traditional analog synthesizer.
Figure 6: The amp sections of the Pro-53 (left) and Arturia Minimoog’s (right) 

The Amplifier 

The Envelope Generator 

Figure 7: A typical envelope shape. Just by looking at it we can tell the story of how it will control the amp’s volume: starting from silence, the volume gradually rises and reaches a peak. From there, the volume gradually decreases to about ½-volume, holds there for a while, and then gradually fades out to silence. This is our sound’s “loudness contour”.
Figure 8: Block diagram of the main components in a basic analog synth. 

The Envelope’s Influence on Duration

Wrapper Up

Related Videos
Comments (0)

You must be logged in to comment.

The Synthesis Of Synthesis
The Foundation Of Synthesis 101
Dream It. Do It.
Do you want to learn The Synthesis Of Synthesis?
Yes, I want to learn!
No Thanks, I just want to read the article.
Feedback
Course Advisor
Don't Know Where To Start?
Ask A Course Advisor
Ask Us!
Copy the link below and paste it into an email, forum, or Facebook to share this with your friends.
Make money when you share our links
Become a macProVideo.com Affiliate!
The current affiliate rate is: 50%
Classes Start Next Week!
Live 8-week Online Certification Classes for: