clm chunk

The 'clm ' chunk is metadata Serum appends inside a wavetable WAV to record frame size and morph settings, so its importer can slice the file without guessing.

The payload begins with a marker such as '<!>2048' that states the samples per frame, followed by flag digits describing the interpolation mode — enough for any reader to slice the file into frames exactly as Serum would. Other tools lean on the same convention: Surge XT reads 'clm ' (and u-he's equivalent 'uhWT') on import, and Vital writes its own 'clm ' chunk into the wavetable WAVs it exports.