I'm making my first foray into FIR for phase correction, and struggling with rephase. I'm unclear about both what 'version' of a measurement to adjust, and also what adjustments to make.
One video suggested importing a 1-cycle FDW measurement into rephase. I was dubious, but it turned out to be helpful, at least as a learning exercise, in that it demonstrated that crossover and box linearization alone could make a difference. I did have to invert polarity on the imported measurement.
But most tutorials recommend working on an excess phase version of the measurement, which makes intuitive sense. But when I import an EP copy, there are very sharp discontinuities that can't be easily addressed with parametric phase EQ.
I'm also confused about what (if anything) I should do with subwoofers, which seem even further out of reach for parametric phase EQ.
I'd really appreciate some guidance and suggestions on just the general approach I should take here.
1. Is inverting the polarity in rephase an issue? Should I then be inverting the channel in DSP?
2. Should I be linearizing the hump above 2kHz? Some tutorials level out the full range some don't.
3. What sort of measurement should I use (FDW, excess phase, smoothed, etc.)?
4. Should I address sharp discontinuities? If so, how?
5. What is the correct approach w/r/t/ subwoofers?
Thanks in advance.
One video suggested importing a 1-cycle FDW measurement into rephase. I was dubious, but it turned out to be helpful, at least as a learning exercise, in that it demonstrated that crossover and box linearization alone could make a difference. I did have to invert polarity on the imported measurement.
But most tutorials recommend working on an excess phase version of the measurement, which makes intuitive sense. But when I import an EP copy, there are very sharp discontinuities that can't be easily addressed with parametric phase EQ.
I'm also confused about what (if anything) I should do with subwoofers, which seem even further out of reach for parametric phase EQ.
I'd really appreciate some guidance and suggestions on just the general approach I should take here.
1. Is inverting the polarity in rephase an issue? Should I then be inverting the channel in DSP?
2. Should I be linearizing the hump above 2kHz? Some tutorials level out the full range some don't.
3. What sort of measurement should I use (FDW, excess phase, smoothed, etc.)?
4. Should I address sharp discontinuities? If so, how?
5. What is the correct approach w/r/t/ subwoofers?
Thanks in advance.
