REW doesn't have enough resolution to measure the distortion of my motherboard soundcard at 80% volume, even using the 4M sweep. I cannot use multiple sweeps as they interfere when summed presumably due to clock drift. I can clearly see harmonics in the RTA which reports them correctly. I can accept much longer sweeps if that is necessary.
Furthermore, REW displays 16 bits in the lower left, are sweep measurements done at 16bit resolution?
Furthermore, REW displays 16 bits in the lower left, are sweep measurements done at 16bit resolution?