[paul99]

Hi John -

I'm new also, just trying REW 4 on the Mac (a G4 power book). I get the same problems as above.

What I hear is that somehow the output test signals are way overdriven into clipping. When I use the generator panel, I have to lower the output level to -60 dB to get an audibly clean sine wave or sweep. But in the real measurement section, the lowest level I can set is -40 dB, which distorts badly.

The badly distorted output is what gives the "measurement bad", or "impulse peak not where it should be", cause there's no way to get a decent sample from this signal.

I have tried using the Line inputs & outputs on the laptop, as well as a decent firewire audio interface (the Metric Halo Mobile IO 2882). Both have exactly the same issue, so this is probably a Java->CoreAudio problem, as you suspect above.

Is there any testing that I can do, to help you track this down? Just name it and I will try....

The program looks awesome, and I'd sure love to have it working on the Mac. I guess in the meantime, I will try to set it up on a PC.

Thanks for all your efforts!!

paul