The 23rd International Conference on Digital Signal Processing (DSP 2018), the original conference in the area of DSP will be held in Shanghai, China. DSP 2018 had its genesis in London in 1968 and continued over the years to Florence, Nicosia, Lemessos, Santorini, Cardiff, Corfu, Hong Kong, Singapore, Beijing and London. In 2018 delegates will be brought right up to date in Shanghai, the most populous city proper in the world, with a population of more than 24 million as of 2014. The conference will contain special sessions, regular lecture and poster sessions, together with plenary sessions delivered by eminent scientists.