Focus Fidelity Filter Designer

[Confused]

@Confused ...

I wonder if the question that @paul.oorbeek  asked wasn't more about using the new beta Focus Fidelity measurement software (Impala) as a means to help determine how best to apply equalization changes within Sweet Room.  It would not be direct, but I suspect it would be quite insightful.  But, to be honest, I've yet to give Impala a try so I may be mistaken.

Yes this also party of my question! Both thanks for the reply!

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I mentioned in my earlier post that REW is very powerful and can do a lot more than the much easier to use for room measurements Focus Fidelity Impala.

I think this is the case with trying to optimise PEQ settings in sweet room. The link below was originally posted in the Sweet Room thread:

https://pbxbook.com/other/devialeteq.html

This indicates how you can use REW measurements to create PEQ settings that could then be used in Sweet Room. So you can do it with REW, but it is not exactly straight forward and intuitive.

What I do not know is if the EQ filter creator in REW would work with Impala loaded measurements. I do know that Impala measurements can be loaded into REW and viewed and compared with REW measurements in terms of SPL versus frequency, but the Impala measurement lose functionality versus "native" REW measurements.

Would Impala measurements work with the REW EQ filter creator? I do not know, but I might try some experiments to find out when I have some spare time.

EDIT: I have just tried loading an Impala created measurement into REW to see if it works with the REW filter creator. The good news is that it appears that it does. The bad news is that going back to REW, PEQ and individual frequency gains and Q's etc. seems to be extremely clunky and very hard work in comparison to FFFD. Also, Impala will generate multiple measurements for the left and right speakers. You can only use one measurement in the REW EQ filter creator, so only one left or only one right measurement in REW. A work around for this might be to perform the measurements in Impala with the Devialet set to mono. (which you can do by selecting the balance control on the remote) I am not sure if this messes up the measurements to a degree, but I guess it is ok for for making basic PEQ measurements.

So in conclusion, yes it will work, but creating far more sophisticated convolutions in FFFD just seems so much easier in comparison.

I remain convinced that for vinyl replay some kind of hardware solution that will actually run room correction convolutions is what is required, creating PEQ in Sweet Room just seems like too much hard work for what will ultimately be inferior results.

Consider that with Focus Fidelity, I can create a convolution, listen to some music and think, this has too much bass, or is too bright or whatever. I can then create a new convolution with a slight adjustment to the target curve, load this up into HQPlayer and be listening again in less than 10 minutes. Imagine just how long a similar process would take with Sweet Room, it would be very hard work.

So, is there a simple hardware solution that will run 65536 tap length FIR filters? As far as I know there is not. Maybe one day. You could build one yourself of course, maybe PC based and running HQPlayer, but we are back in the realms of very hard work again.