Quotes from above review:
One of the more controversial reasons JPLAY was developed was to improve sound quality. People are quick to say that the television remote doesn’t change the picture quality, so a UPnP control point also can’t change the sound quality. However, this is a very primitive point of view and shows a lack of understanding of how applications and networks function. Most apps are “constantly” communicating with either a mothership, the network, online services, or a host of other entities.
JPLAY has always said to improve sound quality a main goal was to eliminate or majorly reduce network activity from the control point. I wanted to see how successful the JPLAY team was at this, so I setup a test and recorded video for everyone to see. Within the JPLAY settings is an option called Update Time. This is how often the control point application queries the audio endpoint for a progress update. The allowable settings are between 1 and 12,000.