ACID‑Like Bass Synth

In this patch, we’ll build a classic acid bass synth using the SVF filter (especially its resonance), along with the 8bit and ENV modules.

Hear how it sounds:

This patch assumes you’ve built the rest of the patches, as we derive some ideas from them.

Initial Patch#

Let’s patch it:

Send some MIDI notes. Use a common acid pattern, or place notes on the odd steps of a 16‑step sequence (1, 3, 5, 7, 9, 11, 13, 15) — or on all steps. Add accents by changing the notes on selected steps.

Try adjusting the ENV and SVF knobs to hear how they affect the sound. Hover over knobs to see their functions.

Extra Tweaks#

This is the basic patch. Try these tweaks to make it more interesting:

• Use the HF (high‑pass) and BP (band‑pass) outputs instead of the LF (low‑pass) output of the SVF module.
• Add the DRIVE after the SVF to introduce distortion.
• Use the MCO module instead of 8bit for the basic sound source.
• Add the V2CA after the SVF for VCA control (use the same envelope for the V2CA).
• Use a different envelope for the ENV module (try a second ENV or a GATE).