Image for The Royal Mail choir learn to project their voices

The Royal Mail choir learn to project their voices

Duration: 01:11

Gareth Malone asks the female members of the choir to sing much louder - and gets to use walkie talkies to check that they are projecting their voices.

Available since: Fri 19 Oct 2012

This clip is from

The Choir Sing While You Work, The Final

6/6 The final three battle it in front of the judges - as well as an audience of thousands.

First broadcast: 25 Oct 2012

Image for The Final Not currently available on BBC iPlayer

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