In the Media
Professor Howard also has a number of articles published in popular media.
David gives an insight into how the human voice works, and why it is so difficult to replicate. He is joined by impressionist Rory Bremner and comedian Jeremy Hardy.
Professor David M Howard helps uncover the world of the castrati, 18th century male singers, whose voices remained unbroken thanks to childhood castration.
Stop Press: This was broadcast again in September 2008 - check the BBC Castrato site for more times or check the Century That Made Us site for more details.