The ES1 Oscillator Section

After dealing with modulators and carriers, math and physics, and all the other weird things that comprise FM synthesis, it’s nice to get back to a regular subtractive synth with “regular” oscillators. ES1 has a single wave oscillator plus sub-oscillator architecture. The wave oscillator is full of waveforms that you’re very comfortable with at this point. The sub-oscillator has a couple of new tricks you’ll love. Figure 7.4 shows the ES1 Oscillator section.

Figure 7.4 The ES1 Oscillator section.

The ES1 Oscillator section parameters are:

2’, 4’, 8’, 16’, 32 buttons. These buttons control the octave setting of the wave oscillator.

Wave knob. The Wave knob controls the waveform output of the wave oscillator. The wave oscillator will produce a triangle wave when the knob is set all the way to the left. The next setting is a sawtooth wave. The rest of the travel of the knob controls the width of the square and rectangle pulse waves that the ES1 oscillator can produce. You can click and drag the Wave knob to change the waveform setting or click to the desired setting along the Wave knob’s circumference.