The purpose of this special interest group (SIG-SMM) is to advance the field of speech based multimodal information processing through innovative and rigorous research. We aim to conduct cutting-edge studies that produce novel insights and contribute to the development of new methods and techniques. The SIG-SMM is committed to promoting interdisciplinary collaboration within academic community and cooperation with industry in the UK. We strive to engage in research that has practical applications and can make a meaningful impact on society. Ultimately, our goal is to expand knowledge and understanding in this field and provide supports to early-career researchers.