I recently bought a new pair of headphones and am currently using them on a Windows computer. I have connected the headphones directly to the built-in sound card of the computer and therefore I am using Windows volume controls to adjust the volume.
Since the headphones are quite "sensitive" I have to use a rather low volume and this got me thinking...
How does software controlled volume affect the quality of the output? Well, I guess there must be some reduction in quality of course, but is it 1:1 related to the selected volume?
Lets assume that my sound card is set to 16 bit 44.1 kHz quality. If I set the volume to 50%, will that reduce the bit-depth to 15 bit and will 25% reduce it to 14 bit etc.?