A:AnswerUpper right hand side of IPad has two buttons side by side… Upper button is volume up… Press it! Otherwise open settings and toy around in General or Sound / Display to restore your sound.
A:AnswerPressure sensitivity doesn’t actually have anything to do with an iPad itself, it depends on which Apple Pencil you use. If you use Apple Pencil 2nd gen or Apple Pencil pro or any other newer ones you should have no problems at all.