WIY:
Where I often daven, there are several individuals who daven louder than most others. In one case, it is clearly ????, as he tries desperately to insure that others hear him. This same fellow is always yelling at others who have just entered the building, are still discussing something with someone else, and haven’t yet entered the actual beis hamedrash, where tefiloh has not started yet. Another individual paces around, oblivious to the world, davening loudly, but clearly enveloped in his tefilo. This fellow actually triggers ????????. Another is enamored with his own voice, singing his way loudly, looking around to see who is watching.
I’ve been to ball games in my youth, and loud crowds are not the issue. The parallel is selichos, parts of davening that everyone says loudly. I’m not into total silence, as one might find in many churches. But to be disturbing to others is not acceptable.
The true Odom Chashuv does not disturb others, not by davening, nor any other time. Raising the voice is not the problem. One might move hands and arms during davening also. While not on the decibel scale, this, too, can be either spontaneous and reflective of kavanah, or it could be for display purposes only. For the latter, there is a legendary Kotzker vort.
My responsibility by davening is to establish my own connection to ???”?. If it real and sincere, others might be affected by it. But it is not my job to carry on such that it would make a good movie, just to create an impression of sincerity which is untrue.