HD Audio is listening to music (and in the case of JUKE radio) in very high sound quality. How high then? Normally radio streams offered via the internet are around 64-128 kpbs (kilobit per second), with HD Audio this is 320 kbps. So almost 2.5 times as high. You normally only listen to music at such a high bit rate on paid platforms such as Spotify, Apple Music and Tidal. JUKE is the first website (and app) to offer this for free in the Netherlands.