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This week on Witness History, the smart speaker Alexa is used by hundreds of millions of people around the world.
But did you know its voice was created by two students in Poland.
After watching old sci fi movies, Wukas and Mekow decided they could create a device which sounded less robotic and more like a human.
After spending years developing their own technology, they started winning awards and big companies like Amazon took notice.
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Welcome to the documentary from the BBC World Service.
The 5th Floor.
The 5th Floor.
The 5th Floor.
This is the 5th Floor at the heart of global storytelling.
With BBC journalists from all around the world.
I'm your host, Faranak Amidi.
Bollywood is one of the largest film industries worldwide.
It produces over a thousand titles a year.
It has a cult like following around the world and millions of viewers from China to Africa and the US but in recent years, revenues have plummeted and people in the film industry are trying different strategies to bring people back to the theaters.
So in this episode of the Fifth Floor, I've got three journalists and Bollywood enthusiasts here with me to talk about the latest Bollywood trends.
They are Meryl Sebastian, who's a journalist in Delhi, and Yasser Usman.
He's a film journalist and author of four biographies on legends of Bollywood.
And he's in the studio with me alongside Shoaib Sharifi, who's an editor at BP Afghan Service.