• Question: Why do the voices of people vary in vloume and why don't we all the same sound?

    Asked by jewlz to Mike, Pip, Tianfu, Tim, Tom on 29 Jun 2012.
    • Photo: Tim Stephens

      Tim Stephens answered on 29 Jun 2012:

      Your voice comes from your vocal chords. Everyone is different and their vocal chords are all different and they all control them differently, so you get different voices. The volume is from how hard you force air over your vocal chords when you speak, so quiet people don’t push air out as hard as loud people.

    • Photo: Tom Lister

      Tom Lister answered on 30 Jun 2012:

      What Tim said, plus the sounds you produce vary a lot with the shape of your mouth, nose, tongue and throat – which is of course different in different people plus you can change the shape of your mouth, tongue and throat whenever you want.

      My voice travels quite well, in part because I have big lungs (the sounds reverberates through them) – so there are lots of factors which change the way voice sounds.

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