Now that wearing face masks/coverings are mandatory in shops and public transport many folk are finding that it muffles what they are saying . This means you have to speak a lot louder and more clearly in order to be understood.
It is also a problem for those who are hard of hearing or who rely on lip reading to find out what is being communicated.
Some have come up with solutions of wearing a face visor or a face mask with a clear insert. This means that the lip movements of the speaker can still be seen.
There is also a wide range of Apps for your phone which convert speech to text. They are simple to download to your phone and available for both Android and iPhones.
It doesn’t always get it quite right but it’s a lot better than not being understood at all.