Thanks, @Volusiano. Now it makes sense to me. It seems that the Speech in Noise program boosts the important frequencies for speech while tuning down everything else.
From what @Neville explained about VAC+ and DSL, and the discussion you are part of in the REM vs In-Situ thread, proprietary rationales optimize sound processing in ways the manufacturer deems appropriate. It has been said on this forum that the goal of the optimization is to streamline first fit. However, I wonder if the analogy I once used (iOS/iPhone vs Android/countless different hardware) applies to HA and proprietary formulae as well. I mean, there is a lot more going on other than what we see and are able to control in Genie 2. Oticon calls this “automatics”. Hence my question: since the Speech in Noise is a built-in program, would it work best with Oticon’s VAC+ template? If I have VAC+ on P1, would I have the same “automatics” going on in a DSL program with the exact same parameters of a “cloned” Speech in Noise program? If I have DSL on P1, would the Speech in Noise program be constrained anyhow because that is not Oticon’s formula? Those are questions I could answer empirically, I suppose. Perhaps this is even a fool’s errand (maybe not, since I do hear 1dB sound increase)… Just asking them out of curiosity at this point…