Abstract
This is 4 Keynote speeches from ICAD2015. Titles include: "Let the sound interact and not the user—responsive and immersive experiences for the next generation broadcasting" by Frank Melchoir; "The philosophy of perception and stupidity" by Peter Lennox; "Data as design tool. How understanding data as a user interface can make end-user design more accessible, efficient, effective, and embodied, while challenging machine learning conventions" by Rebecca Fiebrink; "Sonic information design" by Stephen Barrass.