The bottleneck with sound is human ears + end device (headphones, speakers). 10 years ago even many budget sound cards had outperformed the capabilities of an

The bottleneck with sound is human ears + end device (headphones, speakers). 10 years ago even many budget sound cards had outperformed the capabilities of an average human ear and an average headphone. There’s not much room left for growth. As opposed to much more complex and dimensional video data.