Technical information

Processing mode

The Processing Mode button in the bottom bar selects the type of EQ processing. In almost all cases, either Zero Latency or Natural

Phase modes will deliver perfect results, and when linear-phase processing is needed, you can of course use Linear Phase mode

with a customizable resolution.

Zero Latency

In Zero Latency mode, Pro-Q 2 matches the magnitude response of analog EQ'ing as closely as possible, obviously without

introducing any latency. It is Pro-Q 2's most effecient processing mode, and absolutely sufficient for most applications.

Natural Phase

Pro-Q 2's unique Natural Phase mode performs even better. It not only perfectly matches magnitude response of analog EQ'ing, but

also closely matches the analog phase response. So it delivers the most accurate frequency response and best sound quality, even

at the lowest frequencies and highest Q settings, without introducing noticable pre-ring or long latency!

To illustrate the difference between the two modes, we've plotted both magnitude and phase response of a Bell filter at 15 kHz, and

we've also compared this with standard digital EQ'ing, like most DAWs implement in their factory EQ plug-ins.

The red curve shows the magnitude response of standard digital EQ'ing, which really is far-

from-perfect. The blue curve is the response in Pro-Q 2's Zero Latency mode, which is nearly

perfect, except for a small deviation above 18 kHz. The green line shows Pro-Q 2's Natural

Phase mode: it matches the theoretical analog magnitude response precisely!