Just in case some of you don't know this, the Rives Audio Test CD 2 is the only Test CD Calibrated for the Radio Shack Analog SPL Meter.
In addition to the flat 20 Hz to 20 kHz tracks there is an additional set of tracks that are also 1/3 octaves from 20 Hz to 20 kHz. The only difference in this series of tracks is that it is not flat. It is precisely calibrated to compensate for the non-linearity (particularly in the lower octaves) of the Radio Shack SPL meter (sound meter). We have found this meter to be very reproducible, but not very accurate.
The Cd also has added partial tracks of various Mapleshade recordings. One piece of music has been mastered in a variety of ways to test phase and other common problems.
Hope this provides someone help.
Sound Guy
