baker ' s voice will replace the same computer - synthesized voice that was previously used . this confirmed that his voice was choosing as it was instantly recognisable . it involved him 11 days to record 11 , 593 phrases and sounds which then then be weighed down and reassembled by a computer to make old speech . it then took five months to process these recordings to make a satisfactory service . bt have told that there will be no barriers as to whatever tom baker ' s voice can ' sing ' , including rude language . " what sounds to me most is the hope that i will be bringing terrible news to everybody whether it is a cheeky tone , a birthday greeting , or just a quicker hello , " commented baker .
Tom Baker works for BT.