Korg Opsix: Beyond FM with Wave Shaping

video upload by Ian Dixon

"In this Korg Opsix tutorial, I dive deep into the Wave Shaper effect—a feature inspired by the classic Korg 01/W. Discover how to move beyond standard FM synthesis to create complex, harmonically rich textures, including PPG-style vocal pads and D-50-inspired bell tones.

I explore how to use parallel routing and internal filters to tame these aggressive waveforms, turning digital noise into playable, lush patches. Whether you're looking for gritty bass or shimmering pads, the wave-folding capabilities of the Opsix open up a whole new world of sound design."

Timestamps
00:00 – Introduction: Creating PPG-style vocal sounds
00:57 – Setting up a Stacked Algorithm for parallel routing
01:20 – What is Wave Shaping? (Origins from the Korg 01/W)
02:05 – Analyzing different Wave Shaper types and harmonics
03:45 – Designing D-50 style bell pads with high harmonics
05:30 – Using Operator Filters to shape complex waves
07:30 – Starting with Sawtooth waves for digital overtones
09:55 – Creating a vocal wavetable sound with Band Pass filters
10:45 – Detuning operators for a thicker, layered sound
12:00 – Adding high-pitched bell overtones with additional operators
14:35 – Final thoughts and experimentation tips

Previously:

Can the Korg Opsix Recreate the Roland D-50?

video upload by Ian Dixon

"Can the Korg Opsix recreate the sound of the legendary Roland D-50 without using samples? In this video I build a D-50-inspired patch from scratch, using nothing but FM synthesis, wave shaping, layering and effects to see just how close the Opsix can get to Roland's classic LA synthesis sound.

Along the way I break down the patch step by step, recreating the D-50's signature combination of organ, bell tones and bright "spectrum" textures. Rather than copying a preset, this is a practical sound design walkthrough that explains why these layers work and how you can apply the same techniques to your own patches."

⏱️ Timestamps

0:00 – Intro — Can the Opsix recreate a Roland D-50?
0:18 – What makes the D-50 sound? LA synthesis explained
0:33 – Breaking down the layers: organ, bells and spectrum fizz
0:50 – Choosing the algorithm: why Algorithm 24 gives flexibility
1:33 – Building the organ layer with additive waves
2:26 – Detuning for classic D-50-style width
3:12 – Shaping the organ envelope
4:35 – Creating the bell layer with FM ring modulation
5:18 – Bell envelope programming
6:07 – Listening to the original Roland D-50 bell
6:59 – Building the spectrum-style layer
7:42 – Wave shaping and filtering
8:51 – High-pass filtering to recreate the D-50 texture
9:33 – Balancing the layers
10:12 – Master filtering
11:10 – Experimenting with a noise-based layer
12:37 – Refining the bell envelopes
13:07 – Adding chorus, delay and reverb 14:00 – Soloing each layer
15:01 – Final thoughts — Did we get close?