KEF LS60 Room Correction Showdown: REW MMM vs. Wiim Ultra—A Data-Driven Analysis

[Felix7]

For a quick "Dirac comparison" these are mine.

 

[Old_School_Brad]

For a quick "Dirac comparison" these are mine.

View attachment 420745

Hmm.
This does not look too good.

 

[Esprit]

I revisited the Wiim RC measurements using a iPad Mini (borrowed from a friend) in combination with an Umik-1 microphone

What software did you use on the iPad? Thank you

 

[holbob]

Hmm.
This does not look too good.

View attachment 420794

Another day, another Dirac measurement on ASR, another 10db sub bass boost "beyond the curtains".

 

[Felix7]

Hmm.
This does not look too good.

View attachment 420794

There's also a subwoofer

 

[Dako]

What software did you use on the iPad? Thank you

You can read more about the measurement technique in the beginning of this thread: https://audiosciencereview.com/foru...m-vs-wiim-ultra—a-data-driven-analysis.59795/ I just used the iPad to connect the Umik-1 and did measurement in the Wiim app. The actually measurement you see here in this thread is from REW with the MMM (Moving Microphone Method)

 

[Old_School_Brad]

There's also a subwoofer

That’s good, but the fact remains that you’re still asking the system to apply a boost. Your DAC or preamp will be asked to boost the signal to reach the curve.
I'd raise the gain of the subwoofer before running the Dirac measurements to avoid this.

 

[Felix7]

Another day, another Dirac measurement on ASR, another 10db sub bass boost "beyond the curtains".

This is Dirac default suggestion. Non manual edit of the house curve was done.

 

[Old_School_Brad]

This is Dirac default suggestion. Non manual edit of the house curve was done.

You should drag the curtain to 35 Hz.

 

[C0mbat]

Did you use 1/6 smoothing when you calculated the correction filters in REW? If so, this would produce incorrect filters. One should use Var smoothing (no smoothing below 100 Hz) when computing such filters, because REW needs to know the correct width (Q-value) to compute the correct filters.

As a novice at this, I never considered this. Thanks for pointing it out. I need to find time to run things again in REW and then also try out the WiiM room correction with the UMIK-1.