Tiptop Audio Fold Processor Module
Tiptop Audio Fold Processor is a voltage-controlled wave multiplier and sub-octave generator. The circuit is based on a classic diode design that adds odd harmonics by folding the incoming signal, followed by subdivided square waves.
The wave folder creates new waveforms from the standard sine, triangle, sawtooth and square waves, and has a dedicated output jack and CV input with an attenuator, making it very easy to create beautifully animated folding sounds. Adjustable voltage-controlled Inject alters the bias point, creating an even wider palette of sounds.
The subdivide generator squares the fold output, generating four more sounds spaced one octave apart, each with its own gain knob and mixed to the subdivide output jack. Mixing the four can create anything from discordant square wave swarms to sweet harmonic oscillator stacks, from a stable square version of the folded wave to freaky PLL-like glitched slides.
Overall results can sound evil at times and sweet at others — a true multi-faced devil!
- Size: 12hp
- Module depth: 42mm
- Power usage: 60mA @ +12V, 55mA @ -12V
SKU | TIP-FOLDPROCESS |
---|---|
MPN | Fold Processor |
Manufacturer | Tiptop Audio |
Condition | New |
Included from Manufacturer | |
Module Type | Modulation |
Module Width | 12hp |
Depth | 42mm |
1U Module | No |
Module Power Usage | 60mA @ +12V 55mA @ -12V |
+5V Required | No |
Tiptop Audio Limited Warranty
Tiptop Audio offers the most extensive product warranty on the analog synthesizer market.
The warranty fully covers any defects or malfunction of their modules for one full year.
- Ground shipping is FREE for all orders $99 and up.
- Our central, midwest location ensures fast delivery times.
- See below for transit day estimates. Please note, these are estimates and are not guaranteed.

Generally, package estimated transit days are as follows:
- Upper Midwest: 1-3 days
- Central US, South East US, and East Coast: 2-4 days
- West Central US: 3-5 days
- West Coast: 4-6 days
- Alaska & Hawaii: 7+ days