Re: Does anyone use a Raspberry Pi for streaming Reply #25 – 2020-10-20 02:41:37 So, I'm noticing something interesting and I haven't even started to test.I'm using a Raspberry Pi 3B+ and a JDS Labs OL DAC that has both USB and TOSLink. Using AlsaMixer, I have the volume maxed for the USB DAC, which is supposed to be Line Level Out. The TOSLink HAT doesn't have any volume controls.TOSLink is a lot quieter than USB is. I can hear that it's quieter, but I also have a VU meter connected, and the two bars only get about halfway up the VU meter via TOSLink, but they get almost all the way to the top on loud parts over USB.I have to assume that maxing out the volume on alsamixer is getting me above line level out. I'm curious how I determine the exact volume setting for Line Level Out.