Yes I agree the announcements are too long and the doors too loud. West Midlands entering new street for example, the automated PA says: “The next station is Birmingham new street. Change here for services across the West Midlands and other long distance services. If you are leaving the train here, you will find it easiest to access other platforms from the B end of the platform. Please do not leave your belongings unattended, they may be removed without notice. If you see something that doesn’t look right, please speak to staff or call the british transport police on 61016. We’ll sort it: see it, say it, sorted.” This is usually followed by the guard saying something like “Ladies and gentleman this is Birmingham new street, where we will continue towards xyz, calling at....”.
Annoys me too when guards repeat what the PA says - eg PA says “This is Sandwell and Dudley” and guard says “Ladies and gentleman, this is Sandwell and Dudley” ... yes we just heard that...