Hi....currently have 2 Chromecast audio, and 1 Chromecast video at home. When I stream content from music apps, I can see that both type allow music services and show as available devices for music casting. So, the question I have is, what is the difference between these 2 for music? Does Chromecast audio sound better for music or is more suitable for some reason? Why? Please note that in all the cases, I am using digital connection to my HiFi/TV/AVR system (via toshlink and HDMI in the case of video). Thanks.