out_ds logarithmic max volume is -3.010300 dB at 100%

[eigma]

I'm using Winamp 5.531 with out_ds v2.47 (d) on a SoundMAX HD Audio device under Windows XP SP2.

Under the out_ds settings, if I set Volume control to "Linear" and I turn the volume up to 100%, the Status tab shows "Volume: 0.000000 dB". This is correct.

However, if I set it to Logarithmic, and I turn it up to 100%, the Status tab shows "Volume: -3.010300 dB". The sound is also audibly quieter (so it's not just a UI bug).

This is a bug, right? Can anyone else confirm?

[dreamlayers]

Confirmed with Winamp 5.541 with out_ds 2.47 (d) running on Vista SP1. Max volume is -3.010300 dB for logarithmic or hybrid and 0 for linear. I can hear the difference.