Maybe you have a deep, booming voice. Or perhaps it’s light and mellifluous. Some people’s voices are honey-smooth while others are as rough as gravel. But why does your voice sound the way it does? CrowdScience listener Hannah in Berlin is training as a teacher and will be using her voice a lot in the classroom in future. She wants to understand more about it: how can she improve the quality of her voice and protect it? And what factors - physical, genetic and environmental - determine the sound of your voice in the first place? Together with presenter Marnie Chesterton, Hannah pays a visit to speech tutor Prof Viola Schmidt at the Ernst Busch University for the Performing Arts in Berlin. Viola and actor Aurelius give us a masterclass in just what your voice can do, as they throw words and sounds to each other across the rehearsal room at a dizzying pace. And Viola gives Hannah a few top tips on using her voice clearly and authentically in the classroom. Hannah’s isn’t the only voice-related question in this episode. Peter from the Kingdom of Eswatini thinks people there speak more loudly than in other countries, and wonders why. To answer Peter’s question we turn to Prof Caleb Everett from the University of Miami. The jury’s out on whether people in some countries really do turn up the volume, but Caleb shares evidence of a link between the climate of a particular region and the sound of its native language. And finally, listener Jonathan has an unusual question for Marnie. When listening to CrowdScience, he can’t tell whether he’s hearing Marnie or fellow presenter Caroline Steel. This got him wondering whether it’s common for two people to sound very similar. Marnie gives Caroline a call, and together they set out to discover if your voice really is unique to you. Caroline tracks down a forensic speech scientist - Dr Jess Wormald from the University of York in the UK – while Marnie speaks to Dr Melanie Weirich from the Friedrich Schiller University of Jena in Germany. And both experts agree that Jonathan may be onto something! Presenter: Marnie Chesterton with Caroline Steel Producer: Jeremy Grange Editor: Cathy Edwards Production co-ordinator: Ishmael Soriano Studio Manager: Donald MacDonald
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So a neutron star is kind of about the size of Chicago.
Unexpected elements from the BBC World Service.
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In a big, airy room in the Mitter district of northern Berlin, two people are having a conversation.
Well, a kind of conversation.
Meet Viola and Aurelius.
They're standing on opposite sides of the room, throwing words and sounds back and forth between them like a ball.
And whatever they're saying, they're clearly having a lot of fun just playing with the sound.
It's what they do because Aurelius is an actor and Viola is a voice tutor.
This is crowd science.
Crowd science from the BBC World Service.
Just to clarify.
It's crowd science.
It's only crowd science.
It's only crowd science.
I'm Marnie Chesterton and I'm in this rehearsal room at a University of the Performing Arts here in Berlin, looking for answers and Berlin.
That's because this episode's question comes from listener Hannah, a local.
Hannah?
Yes, it's me.