I have a recently purchased Roku Ultra. I attempted to use a HDMI extractor (Kinivo 360BNT) but the sound comes out extremely distorted with no dialogue, only background music. I am using a Biamp processor that will require an analog 2 channel input. Can you recommend an HDMI extractor that will work to output clear 2 channel analog audio? Are there audio settings in the Roku that are necessary to make it work?