Of course we don’t know exactly how the MoreSound Booster is set up by Oticon because they don’t give us the details. But in general, since they said that it’d attenuate the background (rear and side) sounds aggressively, one can guess that they probably set the Directionality Settings to “Full Directional”, meaning that it would beam form completely to the front.
On the other hand, the built-in Speech in Noise program still has “Neural Automatic” as the value for its Directionality Settings parameter. That probably explains why you find background conversations less overwhelming with the MoreSound Booster compared to with the Speech in Noise program, because the Speech in Noise may not always be Full Directional like the MoreSound Booster is.
Of course because full time beam forming is not consistent with Oticon’s open paradigm strategy, that’s probably why Oticon only lets user access and enable the MoreSound Booster via the ON app only, and not allow it to be a “built-in” program like the Speech in Noise built-in program is. This way, if you forget to disable the MoreSound Booster after you’re done with it, eventually at some point, when your ON app is reset (closed then opened again), or your More is reset (maybe after being recharged overnight), the MoreSound Booster would automatically get automatically get disabled by default again.
So you can’t really change anything about the MoreSound Booster. It’s either ON or OFF, and usually OFF by default unless you specifically turn it on. So. really the only way to make adjustment is with your Speech in Noise program, and make it as aggressive as the MoreSound Booster is, and with it being a built-in program, you can select and adjust even more parameters. The first thing to mimic the MoreSound Booster better is to just change the Directionality Setting in the MoreSound Intelligence menu of Genie 2 to “Full Directional” value instead of the default “Neural Automatic”.
Another thing you can do to suppress more background noise and increase speech comprehension in the Speech in Noise program would be to set the Neural Noise Suppression in both Easy and Difficult environment to their max values, as the default values there are not at max yet.
If both of these adjustments in Speech in Noise is still not enough compared to the MoreSound Booster’s performance in a loud social situation, your audi can also go to the Fine Tuning section and play around with the gain adjustments to soften up the louder sounds and maybe lower the MPO (max power output) values (which are the ceiling for amplification) down a little.
There is also the Sound Enhancer setting in Difficult Environment (see screenshot below) to make sounds more comfortable for you if it’s too overwhelming, but maybe at the expense of losing some details.