Recent content by fooser-q

Thanks for your reply Marcus! I have tried low-pass filtering input and output, reconfiguring the circuit and various polarity changes in an attempt to stabilize the audio output, but with no success. Near as I can figure, I need some sort of Echo cancellation filtering. We are likely going...

Hello everyone, I'm new to this forum, and though this question may be addressed already in another thread somewhere, I'm hoping to get some focused discussion about solutions going here. Problem: HVAC noise is propagating down the HVAC duct, entering a meeting room / boardroom. The...