I think there are several likely truths on both sides of the table here.
Yes: the louder your tinnitus, the more difficult it will be for you. As
@PeteJ and others have suggested, this is mere common sense. To nail the point home: if your tinnitus was *silent*, it wouldn't be a problem. It's only a problem because it's louder than silent; and the further distance the noise is from silence, the more difficult it will be for the person hearing it. For someone to argue this point seems kind of ridiculous.
However, also yes: there is unlikely to be an exact 1-to-1 relationship between the loudness of one's tinnitus, and the extent to which they are bothered by it. Will they be related? Yes, as indicated above, they will be. But other factors
do come into play, as
@gerhei has been pointing out. To be specific, but not all-inclusive: mental health, comorbid disorders, susceptibility to anxiety/depresson, pain tolerance, frustration tolerance, access to support, physical health, overall lifestyle - these things
will also matter. And this means that even though loudness is of course one of the most important factors to consider, it's also true that two people with exactly the same loudness of tinnitus may not react the same way to it. They also may. But they may not.
So how to reconcile this?
Well, the way I see it, both extreme views are likely to be incorrect. If you try to argue that loudness doesn't matter, you're being ridiculous. And if you try to argue that it's the only thing that matters, then you're also setting yourself up to be wrong. More accurate, I think, would be to suggest that how one deals with their tinnitus will be a complex combination of all of these factors. Loudness is probably the #1 first factor to consider, but then all the other factors must also be considered. For instance, characteristics likely to predispose one to a poor prognosis may be:
* Louder noises
* Higher pitched noises
* Multiple noises/sources (ie. head/ear(s)
* Susceptibility to anxiety
* Susceptibility to depression
* Low pain tolerance
* Low frustration tolerance
* Comorbid mental disorders
* Comorbid substance abuse issues
* Comorbid physical ailments
* Comorbid hyperacusis/misophonia
* Low access to social support
The more of these features one has, the poorer their prognosis is likely to be. And so, if you check off many of these boxes, you should probably consider seeking out psychological support sooner rather than later. The flipside is equally true: if you do not check many of these boxes, you may be able to try working through your tinnitus on your own.
As I work through this list myself, I realize that I'm fairly fortunate. Strikes against me are that my tinnitus is what I would consider "medium" volume, high pitched, multiple sources (head and both ears)". However, I'm otherwise in generally good health, my hyperacusis is mild, I have no history of susceptibility to anxiety/depression, I have no comorbid mental disorders or substance abuse issues, my pain/frustration tolerance tends to be high, and I have good access to social support. So overall, I only check a few boxes (pitch/multiple sources; sort of loudness). Some will check less boxes than me; some will check many more, and it's those people that should consider seeking mental health sooner rather than later.
Not trying to be insensitive/blunt here; not pointing fingers at anyone. Just laying things out as scientifically/accurately as I can.
Happy to hear other thoughts.