To cut up a 声波 文件 通常 to remove 讨厌 bits leaving only the 声 that the 作曲家 wants to 用

When composers used 磁 磁带 they would 拼贴 the parts of the 磁带 with a razor blade Today even though we 用 算機/计算机 we still 用 the 符号 of the Scissors to indicate the cutting of the 声波

切片 the 声波 is a key part of the 过程 of 编辑