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Bachchan at your beck and call: How tech produces his baritone for Alexa

Every word spoken by "Alexa Bachchan" is computer-generated, not a recording

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Machine learning programs, like those used by Alexa and Siri, don’t record every word. Indeed, the voice can speak languages Bachchan may not know

Devangshu Datta New Delhi

3 min read Last Updated : Sep 24 2020 | 8:40 AM IST

“What’s the weather, Alexa?” And the answer comes in a voice few in India wouldn’t recognise. Alexa has got an Amitabh Bachchan baritone. So you have the “Angry Young Man” (now in his 70s) taking orders or telling whether it’s going to be hot and muggy today.

The technology behind the voice is stunning. Every word spoken by “Alexa Bachchan” is computer-generated, not a recording. It takes linguistics, audio technology and, above all, artificial intelligence to put together Alexa’s voice-activated service to “understand” natural language and respond with apparent intelligence.

The difference between computers and humans becomes most apparent when

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