Wavetables for Serum 2
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What a Serum 2 wavetable import expects, and how a Hyperwave export maps onto it.
The format Serum 2 imports
Packed mono WAV import as in Serum 1: drag onto the oscillator waveform display (or use the WT Editor Import menu). Serum uses 2,048 samples per frame and holds up to 256 frames (2 MB of 32-bit data). Modes include Dynamic Pitch (Zero-Snap/Follow), Frequency Estimation (new in Serum 2), Constant Framesize (Pitch Average), and FFT 256/512/1024/2048.
What Hyperwave exports
Every Hyperwave export is one packed wavetable WAV. Check these facts against the Serum 2 format above — where the two disagree, the fix is almost always the frame size or a conversion step, not the sound design.
- Sample format
- 32-bit float by default (values between -1 and +1); 16-bit WAV is a direct export option for targets that load integer banks.
- Channels
- 1 (mono). Every frame is one single-cycle waveform.
- Header sample rate
- 48,000 Hz by default. This is a label in the file header — for wavetable import it doesn't stretch or resample your frames. One exception: VCV Rack's Wavetable VCO reads the sample-rate field as the frame length when it's a power of two, and sample players that fall back to one-shot mode use it for pitch.
- Frame layout
- Frames are packed end-to-end in one data chunk, in wavetable order; the export filename records the shape as name-{samples}x{frames}.wav.
- Resolution
- The live table runs from 8 to 8,192 samples per frame and 8 to 1,024 frames (defaults 2,048 × 256).
- Metadata
- No extra metadata chunks are written — targets that read frame size from metadata have to infer it from the file itself.
Load a Hyperwave table into Serum 2
- Export from Hyperwave as a packed mono WAV at 2,048 samples per frame, up to 256 frames.
- Type 2048 in the Wavetable Editor Formula field, then drag the WAV onto the main waveform display so the data imports unaltered — or drop it on an import-mode zone (Constant Framesize, FFT, Frequency Estimation).
- To keep it in the Wavetable menu, save it from Serum into the User folder of the Tables folder — the menu only scans one folder level deep.
Common issues
- A dragged WAV is analyzed and can be resampled unless you type 2048 in the Formula field first — the manual: 'Serum will then not have to alter the sample data at all.'
- Files over 256 frames exceed the 2 MB table limit — export at 256 frames or fewer.
Design the table once in Hyperwave's node graph, export the packed WAV, and load it into Serum 2 with the steps above.
Make a wavetable in Hyperwave