Almost all animals exploit vocal signals for a range of ecologically-motivated purposes: from detecting predators/prey and marking territory, to expressing emotions, establishing social relations and sharing information. Whether it is a bird raising an alarm, a whale calling to potential partners, a dog responding to human commands, a parent reading a story with a child, or a businessperson accessing stock prices using Siri on an iPhone, vocalisation provides a valuable communications channel through which behaviour may be coordinated and controlled, and information may be distributed and acquired. Indeed, the ubiquity of vocal interaction has led to research across an extremely diverse array of fields, from assessing animal welfare, to understanding the precursors of human language, to developing voice-based human-machine interaction.

VIHAR is dedicated to the interdisciplinary study of vocal interactivity in-and-between humans, animal and robots.