where can i get a free software about “speaking in american accent”?
i im hoping to apply call center but i think my accent and diction are not that good..and i need to practice a lot if i wish to be accepted in a call center..please help me..thank you

I doubt there are any as there is little to no profit incentive for anyone to teach people how to talk with a certain accent. The primary objective is how to speak the language. I would suggest watching American TV shows and emulating that.