When immersive video and ultra HD are discussed, audio is sometimes almost an afterthought. This perhaps reflects priorities on the consumer electronics side, especially TV sets, where the quality of audio output actually got worse as the screens became thinner, because there was less room to accommodate a decent speaker system. This led to the evolution of sound bars, although increasingly users have needed external speaker arrangements or headphones to enjoy an audio experience in keeping with the higher quality video. Even then, audio quality has been constrained by lack of innovation on that front, until the industry belatedly added it into the equation for ultra HD alongside High Dynamic Range, Higher Frame Rate, Wide Color Gamut and high resolution…