变形 is an 為耳/音频 and 视觉 技能 which calls for the gradual 变形 of a 声波 or 图像 from an 起始 to a 终 state It may be 实现 in 声波 by any 数 of 中项 the suitability of which will most probably be 确定 by the 本质（自然） of the 声 themselves