[DUG] linear audio volume to db conversion

[Ross Levis]

I was never any good at logarithms.

I need to convert a linear audio volume to decibels.  The values start at 0 being silence and 127 being maximum.  This needs to be translated to db starting at 0db being maximum volume, and going negative to like -20db being a low volume.  This will be a VU meter.  I'm sure I need to use the Log10 math function, but I'm lost.

Many thanks,
Ross.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://ns3.123.co.nz/pipermail/delphi/attachments/20050619/469c018d/attachment.html