Especially for low volumes the regular controls are too coarse. For that reason I wrote a small applescript that changes the volume multiplicatively
set N to output volume of (get volume settings)
set N to ((N + 1) * 1.3)
set volume output volume N
That works well, but it doesn't display the resulting volume slider. Can we either get a way to display the current volume overlay, or directly a logarithmic volume control option? That would be great, thanks!