Some here may know another screen name of mine is 24bit - 24bit in this case refers to the MacII´s adress coding which was 24bit, before Apple cleaned up and switched to 32bit on the good old MC680X0.
Over the last years some thrilling things happened regarding 24bit coding in music!
You may know that a CD has a 16bit volume range and is sampled at 44.1kHz.
16bit 44.1kHz was not bad when we got our hands on the first CDs, but it was a compromise in sound quality still.
MP3 was much worse, as it squeezed down the music clips even more into levels where a skilled listener would only hear some "sound pie" in many cases.
Good to know the days of mediocre sound files are (almost) over.
A new Audio Hi-res standard is coming up from beneath the horizon: 24bit_96kHz.
Thats the good news.
The bad news is industry will resample everything in their archives and sell it to us again as hi-res.
If you are interested in some free hi-res music samples see here:
Best compare Over and Over Take One 16bit_44.1kHz.aiff and Over and Over Take One 24bit_96kHz.aiff from designwsound for a start. Even with a low end Mac and average headphones, you will notice the difference immediately.
designwsound wants a registration, but you will have an account for such.
If you are aware of some nice free hi-res audio samples (especially Jazz) please don´t hesitate to post a link here.
Attachment is a sample from the 2L server above, an organ version of "Bridge Over Troubled Water" to give you the idea. The samlpe outputs with almost 3000 kbit/s in the louder parts - bummer, aint it?
(If you don´t have a FLAC player around, VLC is fine.)
Bridge Over Troubled Water.flac.zip
The kernel the AIO guide links to in post #4 is the Mavericks AMD kernel. ?Make sure you're using a Yosemite kernel.
Also, the maxmem flag is usually used to limit the RAM to 4GB, which would result in: