Morphing vs. crossfading

Crossfading is an amplitude blend between two wavetable frames, while morphing is the broader goal it serves: moving between frames so the result reads as one continuously evolving timbre.

A straight crossfade sums two waveforms at complementary levels, which can thin the sound at the midpoint when phase differences cause partial cancellation, and it always keeps both frames' spectra audible. Phase-aligned and spectral techniques instead reshape partials between frames, giving sweeps that stay full and coherent where a plain crossfade would dip or smear.