At the top of the window, note that the sound is set to Mono with 4 voices and Unison enabled, as this is a solo melody line, so polyphony isn't needed, and the Mono Unison mode provides more power to the single voice while allowing the envelopes to re-trigger for every note.
Next, note that I'm using only Oscillator 1, and it's set to a straight square wave, which to my ears recreates the original sound most closely. I've also set the Analog control to the left of Oscillator 1 to 12 o'clock, to add a little bit of variety to the digital waveform. Next, I've set Filter 1 to Lo (Low Pass), with the Filter Blend set all the way to Filter 1, as we won't be using Filter 2. Filter 1's Res (Resonance) is set high, to about 3 o'clock and the Cut (Cut-off Frequency) fairly low, to about 9 o'clock, as we'll be using an envelope to open and close the filter and so we need to have its initial frequency set low to give the control envelope room to work.
Next, Volume is set all the way up, and Distortion is set to about 10 o'clock, with the Distortion switched to Soft, just to add a little grit to the sound. Tone is set to Bright to brighten up the patch a bit. Below that, I've enabled the Phaser, and set its Intensity to about 1 o'clock and its Speed to 9 o'clock, which adds a little further variety and motion to the sound. The original patch sounds like it has some sort of processing that varies the overtone structure of the square wave a bit as it plays, and I think the Phaser produces that effect nicely.
In the Router section, the first slot has a Source of Env2 and a Target of Cutoff 1, so that Envelope 2 will open and close our low-pass filter. The Control Amount (the green arrowhead) is set to about halfway-up in the positive direction, but you can and should adjust this to see how this affects the overall sound. This enveloped filter control is one of the most important features of this particular sound.
Next to that, in the second slot in the Router, the Source LFO1 is set to the Target Pitch 1, so we can add a little vibrato to the melody sound. Right below that, note that LFO 1 is set to a Delay value of 10000ms—or 1 second—so the LFO doesn't begin to modulate the pitch of Oscillator 1 until a second after the sound starts. This way we only hear a vibrato on the longer held notes, not the shorter ones. LFO 1's Rate is set to 5.5 Hz, which is a good vibrato speed. Also note the waveform for LFO 1 is set to Triangle, for a symmetrical vibrato.
Continuing on, Envelope 2, the one that's controlling our filter, has an A (Attack) value of 31ms (you can't see it in the window, but you will when you drag the slider), and a D (Initial Decay) value of 99ms. These two values are critical to reproducing our sound, so you want to get those right; this is what creates the "dwoink" part of the sound. But you should definitely play with those values to see how adjusting them even slightly changes the sound significantly.
Finally, Envelope 3, which controls our sound's amplitude, has an Attack setting of 0.11ms, just above zero, no Initial Decay, an S (Sustain) level of 0.161, and an R (Release) value of 24ms. These settings give us a sharp attack and decay when the notes are played staccato, as they are most of the time, but allow for a little sustain on the longer notes so you can hear the vibrato tail on those notes.
Richard Lainhart is an award-winning composer, filmmaker, and author. His compositions have been performed in the US, Europe Asia, and Australia, and recordings of his music have appeared on the Periodic Music, Vacant Lot, XI Records, Airglow Music, Tobira Records, Infrequency, VICMOD, and ExOvo labels. His animations and short films have been shown in festivals in the US, Europe, and Asia, and online at ResFest, The New Venue, The Bitscreen, and Streaming Cinema 2.0. He has authored over a dozen technical manuals for music and video hardware and software, served as Contributing Editor for Interactivity and 3D Design Magazines, and contributed to books on digital media production published by IDG, Peachpit Press, McGraw Hill, and Miller Freeman Books. Previously an Adobe Certified Expert in After Effects and Premiere, a demo artist for Adobe Systems, and co-founder of the official New York City After Effects User Group, he was, from 2000-2009, Technical Director for Total Training Productions, an innovative digital media training company based in New York and California.