通常 提及 to any 过程 which irreversibly 改变 the wavesets in a 声波 waveset inversion omission 反转 shaking shuffling substitution averaging and 谐/泛音 失真 Specifically used to refer to power-distortion raising each 采样 of the 声波 to a power e g squaring cubing taking the （平）方 root 源 - Trevor Wishart 1994 可听 设计 York Orpheus the Pantomime