PLAN8T AIR S21 “The invisible sound”

Based in Hamburg, Germany, Dong Zhou & Yujue Liang 's recent work and research focus on sound, video and installation in the fields of ecology, environment and technology. To explore our changing ways of perceiving and feeling sounds and images in the anthropocene due to the development of science and technology, the change of environment and climate. Their works have been exhibited at the Center for Art and Media Karlsruhe, the Museum of Perception Graz, the Kunstquartier Bethanien Berlin, and the Essence Contemporary Art Museum Chongqing.

周东和梁宇珏现居住于德国汉堡，他们近期的创作和研究大多以声音，影像和装置为主要媒介，作品涉及生态，环境与科技等领域。探讨身处人类世中的我们因为科技的发展，环境与气候的改变而不断变化的对于声音与图像的认知与感受方式。他们的作品曾于卡尔斯鲁厄ZKM艺术中心，格拉茨感知博物馆，柏林Kunstquartier Bethanien，重庆原美术馆等机构展出。

56-75 Decibel  | 56-75分贝
Installation / Interactive New Media

Acoustic vehicle alert system (Avas) is an acoustic device commonly installed on new energy vehicles. It simulates the noise generated by gasoline and diesel engines during operation, to give an appropriate sound alert to walking people.

The regulation that all new energy vehicles must be equipped with an acoustic vehicle warning system has been adopted by various countries. It also requires the acoustic vehicle alarm system to emit 56-75 decibel of continuous noise when driving. In order to innovate and enhance brand competitiveness and user driving experience, automakers around the world have also begun to cooperate with artists and sound engineers to produce digital and analog sound waves on the acoustic vehicle alarm system, defining and creating a completely whole new world of sound that is not part of our previous auditory experience. People cannot intuitively recognize a coming car merely by a brand-new acoustic signal that they have never been exposed to before. Instead, cognitive unification of both visual and acoustic signals is achieved through unconscious training and experience from every viewing. However, this cognitive method seems to be unsuitable for blind people.

The three-channeled videos are composed of NFT video portraits of 15 blind children, showing that they heard the digital and analog sound waves of the acoustic alarm system for the first time, and we re-edited these digital and analog sound waves as the video soundtrack based on the feedback of each blind child. The three sets of videos and stereo sound are unfolded in the form of the surround, re-simulating the scene where the blind child listens to the digital-analog sound wave for the first time.

At the same time, the video portrait NFTs of these 15 blind children will be displayed on the Opensea website, and the benefits obtained from each NFT sold will be used to help these blind children.

声学⻋辆警报系统（acoustic vehicle alert system，Avas）是⼀种现在普遍安装在新能源汽⻋上的声⾳装置，模拟了汽油与柴油汽⻋发动机在运⾏的时候发出的噪⾳，⽤于给⻋外⾏⼈发出适当性的提示声响。

所有新能源汽⻋都必须配备声学⻋辆警报系统这⼀条例已经相继被各国纳⼊法规，并且要求汽⻋在⾏驶时声学⻋辆警报系统必须发出56-75分⻉⼤⼩的连续噪⾳。全球的汽⻋制作商们为了创新，提升品牌竞争⼒和⽤户驾驶乐趣，也开始与艺术家，声⾳⼯程师合作，在声学⻋辆警报系统上制作数字模拟声浪，定义与创造⼀个完全不属于我们之前的听觉体验的全新的声⾳世界。⼈们并不能直观的仅通过⼀种以前从未接触过的全新的声⾳信号辨识出⼀辆⾏驶⽽来的汽⻋，⽽需要通过每⼀次的观看，让视觉信号与声⾳信号在⽆意识的训练与经验中达到认知统⼀。但是这种认知⽅式似乎⽆法适⽤于盲⼈。

三屏的影像由15个盲童的NFT视频肖像组成，展示了他们第⼀次听到声学警报系统的数字模拟声浪，并根据每个盲童的反馈重新编辑了这些数字模拟声浪作为视频配乐。三组视频与⽴体声以环绕的形式展开，重新模拟了盲童第⼀次听数字模拟声浪的场景。

同时这15个盲童的视频肖像NFT展出于Opensea⽹站，每⼀个售出的NFT所获得的资⾦都会⽤于帮助这些盲童。