BBC presenter Clare Balding has undergone a series of tests at the neuroscience lab at University College London (UCL) to find out why her voice sounds like it does.

Listen here as UCL's research team use an MRI scan to find out how her brain and voice interact as part of Radio 4's Vox Project.

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Images: Jimmy Crippen

People are being asked to contribute their own voice recordings to UCL's research via Audioboo.

Slideshow production by Anna-Louise Taylor. Publication date 1 December 2009.

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