JD-EE,
provide information that could diagnose cockpit noises as ice on the windshield, flying through rain, flying into a sudden up or down draft, [etc.
As you know CVR are useful not just for voice.
We as Engineers MUST optimize our Designs and in this issue you can provide better info for the investigators just improving at a VERY LOW COST the recorder.
This is related to Engineering and not to radio operation. And could be discussed in engineering details in another thread being planned.
Bottom line:
There is room for (low cost) improvement in existing CVR´s.