I had unplugged the 3.5 connections on both my BCD536HP and my HP Pavilion Tower that had been running the feed since 2011. When I went to plug things in, I was unable to get audio back. I used 3.5 mm to 3.5 mm audio cables and it was put into every 3.5 mm jack available. I did it again bypassing the noise filter that had been on for some time. Still, there is no audio. I checked my sound card drivers and selected each card. I'm not sure what else to try. I'll be trying a different 3.5 mm to 3.5 mm cable to rule out the cabling. Beyond that, I'm not sure what happened.