In Windows 7, the volume control is tapered, so that you drag the slider and it skips many levels at the bottom. Is there any way to make the controls finer, so I can access the settings in between these? Either some hidden feature of the Windows control panel, registry, or using third-party software?
For example, my hardware supports 1 dB steps from -30 to +30 dB, but the Windows control only gives me access to -30 dB, then -7.3 dB, then -1.6 dB, etc. I want to access -30 dB, -29 dB, -28 dB, etc.
This is for testing hardware, not for casual listening, so I need to be able to reach each value, and preferably control the "playthrough" sidetone level, too.