No you don't.

Where there is a noise concern - anti-noise legislation can insist on the installation on these as a measure to attempt to control it.

Which must be better than risking forms of music making, that may not be a noise concern by insisting on them in advance, as a licensing measure.

Do you accept that licencing conditions that insist that the premises pay for their installation does risk all forms of music - if the premises decide not to pay for their installation.

But why has the use of the wonderful noise limiters not solved your local problem?

I have known unaccompanied unamplified singers who could set them off).

If it is the same one that I am thinking of - they could sing in Kent and set them off in Dorset.