use different pronouciation
https://msdn.microsoft.com/en-us/library/office/hh361601(v=office.14).aspx
not work:
ss= '<?xml version="1.0" encoding="ISO-8859-1"?><speak version="1.0" xmlns="http://www.w3.org/2001/10/synthesis" xml:lang="en-US"> Gimme the <phoneme alphabet="x-microsoft-ups" ph="S1 W AA T . CH AX . M AX . S2 K AA L . IH T"> good </phoneme>.'
u.text = ss;
u.lang = 'en-US';
u.rate = 1;
speechSynthesis.speak(u);