<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><span style="font-size: 13px;">Okay, one more question. </span><div style="font-size: 13px;">How do I isolate the analog ground from the digital ground? Does that mean they do not connect at all?</div><div style="font-size: 13px;">If so, do I make a “virtual” ground with a (not-too-high impedance) voltage divider and attach the audio jack’s ground to this? </div><div><br></div><div>I never really have understood the practice. I see a voltage divider pseudo-ground used in the Teensy Audio Shield.</div><div><br></div><div>Thanks,</div><div>Benjamin</div></body></html>