PlanetZ forums - scopeusers.com

How can I measure the spdif bit depth output, of my Soundcraft M8 mixer?
Some specs say 44.1 - 16bit and some other 44.1 - 24bit. Manual says only the Sample rate(44.1)

I would like to match it with scopes asios. So I must see if it is 24 or 16bit.

Is there a software or scope module available?

try recording a clean sine wave over spdif and analyze the waveform and the frequency to see if it adds harmonics artifacts and to see if the waveform is stepped.

http://en.wikipedia.org/wiki/Effective_number_of_bits

even if the mixer is 16bit, using 24bit drivers won't hurt anything.