Here are the detailed steps for setting up the SB Live! 24-Bit USB External
soundcard for use with REW under Windows XP. Note that the Creative software
does not function properly under Windows Vista, the card can still be used
but only by loading the Vista-compatible drivers from Creative's website and using
the Windows mixer, do not install the Creative software under Vista.
Although REW uses 16 bit audio samples at either 44.1 or 48kHz, it is
possible to set the SB Live! card to use 16 or 24-bit samples at 44.1, 48
or 96kHz. Changing the sample rate settings slightly alters the internal filtering
in the soundcard, example measurements in the different settings are shown
in the graphs below. Using 16 or 24 bit settings makes no difference as
REW uses 16 bit samples. 48kHz/16-bit is recommended, make sure the REW
rate is the same as that set for the soundcard, when the rates are different
the soundcard will resample slightly degrading the measurement quality.
Note that 96kHz/24-bit may not be possible depending on your USB connection,
if so this message will appear:
Measured with a single 256k sweep at -12dB FS Sweep Level.