36 minutes ago, frednork said:

There are different ways of doing this. Acourate/  DEQX uses this nearfield/farfield  approach but other approaches like Audiolense or focus fidelity or dirac only measure farfield. They use different techniques to determine the critical info required to develop an appropriate filter l. If you have read  any of the blogs and walkthroughs from Mitch Barnett you would see he shows how both approaches can be used successfully with some of these tools to get an excellent result. But these varying approaches may suit some some tasks better than others so it does depend on the use case as to which may be a better choice.

Thanks. Are there any general guidelines as to the situations in which when one approach (nearfield/farfield vs Garfield) is better than the other?

47 minutes ago, zydeco said:

Thanks. Are there any general guidelines as to the situations in which when one approach (nearfield/farfield vs Garfield) is better than the other?

Sure, for instance if you wanted to design some active speakers for others to build/buy. For this situation the effect of the room they were designed in will not be useful once the speakers are used in a different space. To provide the best design for others to use requires a good understanding of how the speakers respond without room effects (as much as possible) .  For this purpose Audiolense , Focus Fidelity and Dirac are not useful. 

 

It's also not just about what the software can do. It's also how difficult it is to use one against the other. Something like Acourate is essentially a DSP toolbox and can pretty much do anything, however to do something like setup a 4 way crossover , linearise xovers and reduce room effects can take a very long time and also requires a lot of experience and understanding of how the software works and if acoustics principles. You can ask @Keith_W how long it takes to get a  good result on which you may need to spend a lot longer refining. Something like Audiolense can do an excellent job in about 15-20 minutes for that use case if you know what you are doing. It still will need refining but that is also much quicker. 

 

But Audiolense, Focus Fidelity, Dirac just doesn't have all the tools and capabilities that Acourate has and also vary in approaches and technically what they do. Just depends on whether you need a particular feature set.

 

 

 

Edited May 10, 20241 yr by frednork

This post from Mitch explains why he used a particular piece of software for a particular task https://audiophilestyle.com/forums/topic/69133-thoughts-on-stereo-subwoofer-integration/?do=findComment&comment=1264496

and expanded here with some input from our very own KeithW https://audiophilestyle.com/forums/topic/69333-article-digital-signal-processing-the-ultimate-guide-to-high-end-immersive-audio/?do=findComment&comment=1268550

 

When I saw this picture, I thought of you Keith...in a good way of course..😎