Google now voice has changed to US accent

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http://forums.androidcentral.com – I updated several apps recently, the last of which was Google Search (not sure if that's relevant) and now when I ask Google Now a question using the voice thingy, the voice which tells me I'm going to need my umbrella tomorrow has changed from my nice UK accented man to a slightly nasal sounding American woman. I've looked through various settings and everything seems to be set to UK English. Is there a way to get my dulcet-toned man back? (HowTos)