From TextToSpeech
CountryCountry code to use for speech generation. This can affect the pronunciation. For example, British English (GBR) will sound different from US English (USA). Not every country code will affect every language.
Language Sets the language for TextToSpeech. This changes the way that words are pronounced, not the actual language that is spoken. For example, setting the language to French and speaking English text will sound like someone speaking English with a French accent.
So try country code GBR
To simulate a female voice, change the pitch.
Google only provides a female voice; you can add other speech engines to your phone (most cost money) Some links might be here> text to speech android settings - Google Search