Phonak audeo + tv connector : strong RF

New to HA (a few days).

When I listen to streamed music from my computer, via tv link, there’s a very noticeable artefact (somewhat like frying bacon) especially during soft passages. Typical of poor connections and/or cheap hardware. Sound is also poor if I stream BT to Phonak.

I get the feeling that the HAs are trying to amplify too much – my computer volume is at its minimum yet sound pressure is louder than what i’d usually listen to. I’ve had to install 3rd party app on my computer to lower the volume.

My Shure 535 + wireless adapter do not exhibit this, both excessive gain and poor signal-to-noise ratio.

Any suggestion? Is this a programming issue, hardware limitation, “feature”?

Thanks