for frequency needs (for humans) 44khz is all we will ever need. people saying otherwise are mathematically wrong.
now 48khz allows for better work on the low pass filter, without being uselessly big in data. so it does sound like the very reasonable best choice. not that I can really complain about 44.1.
24bit has no defaults except size. worst case scenario,it doesn't do anything. so when possible it can actually be a cool thing. but playing 16bit as 24bit in foobar already brings most of the benefits of 24bit.
between playing a 16bit in 24bit or having 24bit files:
- digital volume control get the same margin
-quantization noise from the dac will also be the same
the only real difference is that the original file will have higher noise if in 16bit from the ADC right? but we're talking about stuff done in pro studios, so it's reasonable to say that noise is really well under -96db and means nothing to us.
everything I've seen pushes me to be a fan of 16/48 but I have no problem with 24/48(except size).
wouldn't 48khz be better than 44.1 when the dac does the upsample/oversample into 96khz or 192khz as it would be a simple division by 2 or 4 operation?