The sound looks a lot more apparent than it was with a Denoise DNG? Or perhaps the take away fix remains to be a tad noisy on any Denoised file, irrespective of whether it had been a DNG or not? Benchmarks would be the distilled wisdom of people with knowledge https://www.nathanisoconsulting.com/blog/steps-to-achieve-iso-55001-certification-in-uae/