I would not know how a router alone could change sound quality unless streaming software would be designed to drop to lower resolution to maintain a stream with a weaker connection rather than stop and rebuffer.
I suppose it's possible but have not experienced that. I know the plex software I use for streaming is designed to do that over a lower bandwidth Internet wan connection but not a lan.
In weak/low bandwidth scenarios streaming software has two choices though essentially: either rebuffer and drop the sound or deliver a lower resolution stream that can be maintained without dropout. So results might vary depending on specific software used.
I suppose it's possible but have not experienced that. I know the plex software I use for streaming is designed to do that over a lower bandwidth Internet wan connection but not a lan.
In weak/low bandwidth scenarios streaming software has two choices though essentially: either rebuffer and drop the sound or deliver a lower resolution stream that can be maintained without dropout. So results might vary depending on specific software used.