For / Eurorack
Wavetables for Eurorack.
The E352, E370, and Piston Honda MK3 load 16-bit banks off a microSD card — and Hyperwave now exports that 16-bit WAV directly. Here is what those modules actually read, the WaveEdit ecosystem around them, and what remains between a browser export and a bank on a card.
What the modules load
The E352 Cloud Terrarium and E370 Quad VCO load WAV banks from microSD — 256 samples per wave, 16-bit, with 64 wavetables per bank in an 8×8 array — and the module holds 26 user banks.
The Piston Honda MK3 takes 8 mono 16-bit WAV files named 1.wav through 8.wav, each holding 64 waves of 256 samples; loaded together, they fill its 8×8×8 = 512-waveform cube in one operation.
The WaveEdit ecosystem
WaveEdit, Synthesis Technology's free and open-source bank editor, is the official editor for the E352 and E370 and writes the WAV banks those modules load. If you are staying inside that ecosystem, it is the purpose-built tool.
For the Piston Honda MK3, OSS Wavetable Creator's compatibility list also names the module, but the verified load path is the 8 converted mono 16-bit WAV files on microSD.
From export to card
Hyperwave exports the 16-bit WAV these modules load directly — the E352/E370 and Piston Honda presets write 256-sample frames at 16-bit — so the bit-depth conversion step is gone. What remains is bank layout: assembling a 64-table bank or naming the eight files the Piston Honda wants, which is where WaveEdit and the card come in.
Plan the table at 256 samples per frame with at most 64 frames: each frame becomes one of the 64 single-cycle waves in a bank, and a longer table has to be split across files.
Designing for 256-sample frames
A 256-sample single cycle tops out at 128 harmonics. Bold movement between frames reads clearly; the very top of the spectrum simply is not represented, so ultra-bright detail you can see in a 2,048-sample software table will not survive the format.
Design for contrast that travels: what moves across the bank is what you hear when the module sweeps it. Anchored lows with one strong moving feature beat a dozen subtle changes every time.
E352 Cloud Terrarium / E370 Quad VCO
Synthesis TechnologyVerified
WAV banks loaded from microSD: 256 samples per wave, 16-bit, 64 wavetables per bank in an 8×8 array; WaveEdit is the official editor and the module holds 26 user banks.
- The module loads 16-bit WAV banks only — export with the E352 / E370 preset (256-sample frames, 16-bit) instead of the float default.
- A bank tops out at 64 wavetables, and the module holds 26 user banks.
Piston Honda MK3
Industrial Music ElectronicsVerified
microSD load of eight mono 16-bit WAV files named 1.wav through 8.wav — the eight files are eight independent Z-axis banks, each holding an 8×8 X/Y table of 64 waves × 256 samples (together the 8×8×8 = 512-waveform cube). All eight files must be present or the load fails.
- The module loads mono 16-bit WAV files — export with the Piston Honda MK3 preset (256-sample frames, 16-bit) instead of the float default.
- The eight files are eight independent Z-axis banks, each an 8×8 X/Y table of 64 waves — a table can't exceed 64 waves per file. Export eight separate 64-wave tables (one Hyperwave export each) and pad unused Z slots with the IME factory waveset; the load fails unless all eight files are present.
Both module guides below are derived from the verified export-target registry: the exact import format, the common failure modes, and the step-by-step path from an export to a bank on a card.