therealdobro wrote:
"Because the Izotope signal is in anti phase with the direct one, thus causing partial cancellation of the audio signal."
Hm? Anti phase? What's that? And if it's in 'anti phase', why is there not complete cancellation? And why does the Izotope compressor do this anyway?
He means that it's signal inverted - actually it hasn't got anything to do with phase at all. No I don't know why, and I haven't tried it - although it seems somewhat unlikely, I must say.
"Because the Izotope signal is compressed the level is not equal to the direct one all the time, hence not complete cancellation."
Hm?
That's easier to answer. Compression inevitably means that the signals at different amplitudes are going to be at different levels when it comes out of the compressor. If they weren't it wouldn't be compressed... so cancellation would only be complete when the inverted signal was at exactly the same level as the original non-inverted signal. Where there was a level change so that the signals weren't at the same level, then cancellation couldn't be complete.
Mind you, I'm not convinced (without hearing it) that this has anything to do with what's going on at all...