We don't normally list websites with audio but sound is the main concept behind this experimental one pager. 'Emotions of Sound' is a quiz asking the user what emotions they feel when listening to various background audio samples. The browsing experience is excellent and the beautiful background color hues change to match the current sound. The real kicker for me is that this is an experimental campaign to promote the Amplifon brand (hearing aids/testing) at the end of the quiz. I love seeing this sort of intelligent marketing via a one page website. They have also included an option to embed the quiz on your site hence spreading the campaign even more. Hats off.
Utilising webkit-filters, this site responds to a user's interacting emotional responses to a range of sounds by changing colour hues to suit, set upon an atmospheric and mesmeric backdrop.