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In Reply to: RE: Using REW with Maggies posted by josh358 on October 11, 2015 at 07:36:24
to use an REW group delay plot to adjust the DSP filters in DEQX or mini-DSP?
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Sure, check out Rephase for a free example:
http://www.minidsp.com/applications/advanced-tools/rephase-fir-tool
Note that you'll have to use an FIR-capable Mini DSP.
DEQX can also do phase linearization, though I assume they use their own analysis software, not sure what the story is with importing filters.
With a convolver, you can also use a correction filter on a PC or Mac.
Thanks for the links. Very helpful. After a few hours of reading I now understand that FIR filters can correct phase but not group delay. I need a little more education. In any event I have confirmed that miniDSP with add-ons has much more functionality than what I am using.
Keep in mind that to get to the FIR filter level, you need to go up-line at Mini.
I tried reading the WIKI on FIR filters and my brain turned to MUSH after the first sentence.
Too much is never enough
http://www.prosoundweb.com/article/fir-ward_thinking_examining_finite_impulse_response_filtering_in_sound_rein/av/P1/
It would appear to be accurate.
This is a complex subject. I'm sure the math is helpful but most of it eludes me. Just because someone is an expert doesn't mean they're capable of explaining something.
I've TAUGHT technical stuff. Some people are seemingly incapable of absorbing detailed, scientific information. That's one reason I have trouble reading a lot of 'Advertising Babble' about technical stuff.
I'd LOVE an explanation of FIR filters. But even THAN? I don't know that I'd want or NEED to try to get the gear to impliment.
Too much is never enough
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