I know that lots of minyanim have the talking problem; has anybody solved it?
I daven with a weekday shacharit minyan that has a noise problem. A couple of people are the main sources of the problem (instigators). The problem, to be clear, is talking about inappropriate things during services loudly enough to disrupt others, including the sh'liach tzibbur. Both the regular congregants and the sha"tz, have tried talking privately and delicately with them and encountered denial and some hostility. There is no rabbi; everyone there is a layperson. I'd rather not leave this community.
Some have suggested that the sha"tz stop services when this happens and just wait, or even address these people directly at that point and ask them to stop. I'm concerned that this might cross the line into inappropriately embarrassing them, particularly if there are visitors to the minyan (as there sometimes are) who do not know the history. What are the halachic parameters of such an approach: is anything in that vein possible (and advised)? Are there other ways to address this problem, other than the sha"tz just raising the volume to overpower the talkers?