You can easily change the voice of Google Assistant, and achieving this is an easy task within the Google Home app.
Launch the Google Home app and tap the Settings icon. Scroll down to and select Google Assistant Services, then choose more Settings. Select the Assistant tab.
The second option here is Assistant voice, but let us also draw your attention to the option above this: Languages. If you are bilingual and want to be able to speak to Google Assistant in a language other than English you can simply add it here.
Tap Assistant voice and you’ll see a selection of voices available, all distinguished by a different colour.
Currently in the UK only two voices are available: a female voice and a male alternative.
Simply select one to change the voice, then exit the Google Home app.
(As an aside, when we first set up our UK
Google Nest Hub we heard a US English accent. There was no way to change this in the settings, but a
factory reset solved the issue.)
Funny things to ask Google Assistant