说明：  声音和图像分别是听觉和视觉两种模态接收的输入信息，在数字信号处理领域有着各自不同的处理方法。将图像的处理方法运用到声音上，这种跨模态处理方法为视听交互和融合的相关研究提供分析思路，激发新的数字信号处理方法。
(Sound and image are the input information received by auditory and visual modes respectively. They have different processing methods in the field of digital signal processing. The image processing method is applied to sound. This cross modal processing method provides an analysis idea for the research of audio-visual interaction and fusion, and stimulates a new digital signal processing method.)