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This paper is study of audio visual expression. Ears to accept the scope of information than the eves verv wide. voice is familiar with the transaction in our life. Throuah expounding the basic concept of sound and the role of daily life, science and art to explore about the relation between sound and visual, and enumerated the application of sound visualization rendering, aims to find new breakthrough and ways to better express the graduation design of the seal, remember-drops of sound fall means "the content and purpose.Choose water and paper as sound visualization research of abstract animation of the subject; For voice acquisition aspects based on to John cage "attaches great importance to the sound of music" creative ideas and opening after the results of the study, acquisition "small but beautiful", the voice of the weak and the strong element, again with different angles in this paper, the design of the source of the sound element and existence meaning; In this paper, the audience in a positive manner to pay attention to accept a broader nformation ear, to focus on every day with hearing, from known and familiar defamiliarization, to create again.