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How to import wavetables into Serum 2

Xfer RecordsSoftware synthVerified

Serum 2 from Xfer Records imports wavetables like this: drag-and-drop packed-WAV import at 2,048-sample frames (up to 256), as in Serum 1.

This guide gives the exact layout Serum 2 expects, the step-by-step load, the Hyperwave export settings that match, and plain fixes for the import failures the documentation warns about.

Everything here is verified against Xfer Records's own documentation or source code — sources at the end of the page, checked 2026-08-16.

What Serum 2 expects

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.

Step by step

  1. Export from Hyperwave as a packed mono WAV at 2,048 samples per frame, up to 256 frames.
  2. 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).
  3. 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.

If something goes wrong

My dragged WAV comes back resampled or altered in Serum 2.
Type 2048 in the Wavetable Editor Formula field before dragging — the manual: 'Serum will then not have to alter the sample data at all.'
Only part of my table arrives.
Files over 256 frames exceed the 2 MB table limit. Export at 256 frames or fewer.

Export settings for Serum 2

Serum 2 has no dedicated export preset in Hyperwave — the default preset ("Default — 2048 × 256") writes 2,048 samples per frame, 256 frames, mono 32-bit float, and matches the layout documented above.

Default — 2048 × 256
2,048 samples per frame × 256 frames · 32-bit float · 48 kHz

Sources