Room correction

[LucAce]

WiiM Amp Pro in my room.
Measurement results with REW and UMIK-1.

Green: no EQ
Blue: WiiM Auto EQ, measurement with an iPhone
Yellow: measurement with REW, filter calculated by REW and entered manually into the WiiM app

The results of the first attempt with the WiiM app's automatic room correction didn't work for me. It actually does the opposite of what it's supposed to do.

 

[Dennis from Venice]

WiiM Amp Pro in my room.
Measurement results with REW

The results of the first attempt with the WiiM app's automatic room correction didn't work for me. It actually does the opposite of what it's supposed to do.

I did the same but I only did one frequency 44hz….I have it on my to-do list to do the REW with all the frequencies and left and right and maybe with the Mike in different spots. A lot of work.

 

[Smartplug]

View attachment 13384

WiiM Amp Pro in my room.
Measurement results with REW and UMIK-1.

Green: no EQ
Blue: WiiM Auto EQ, measurement with an iPhone
Yellow: measurement with REW, filter calculated by REW and entered manually into the WiiM app

The results of the first attempt with the WiiM app's automatic room correction didn't work for me. It actually does the opposite of what it's supposed to do.

Do you think the iPhone mic is the culprit?

 

[MCG555]

View attachment 13384

WiiM Amp Pro in my room.
Measurement results with REW and UMIK-1.

Green: no EQ
Blue: WiiM Auto EQ, measurement with an iPhone
Yellow: measurement with REW, filter calculated by REW and entered manually into the WiiM app

The results of the first attempt with the WiiM app's automatic room correction didn't work for me. It actually does the opposite of what it's supposed to do.

Strange, as for me, with iphone, it works extremly well in the bass section (with WiiM Pro). Even better now since the last update! (With 2 subs)

 

[harkpabst]

It actually does the opposite of what it's supposed to do.

???

 

[AndyB]

Hi, I have used the wiim amp room correction with the following results. What I would like to know is why the
levels of frequencies above 4K are so elevated? I set the range of correction to 30-4000Hz.

 

[slartibartfast]

Hi, I have used the wiim amp room correction with the following results. What I would like to know is why the
levels of frequencies above 4K are so elevated? I set the range of correction to 30-4000Hz.

Could just be your mic. Which phone and mic did you use?

 

[AndyB]

Could just be your mic. Which phone and mic did you use?

I used my iPhone 11 pro.

 

[MCG555]

I used my iPhone 11 pro.

I would not correct above 4k. I don‘t know why this happens, but for me it is the same (iphone 12)

 

[Smartplug]

I would not correct above 4k. I don‘t know why this happens, but for me it is the same (iphone 12)

Setting full range 20 to 20khz may not be good idea since you’re limited to 10 band. I tried many range but 20 to 500 yield most cohesive soundstage.

 

[harkpabst]

Setting full range 20 to 20khz may not be good idea since you’re limited to 10 band. I tried many range but 20 to 500 yield most cohesive soundstage.

Concerning full range correction I really think that the precision of supported microphones (as long as we don't have support for calibration files) and the general problems with this approach (e.g. move the mic just a couple of centimetres and the results will vary broadly) are even more of a limit then the 10 bands.

But yes, if you not only want to correct for room effects but also e.g. imperfections of the speakers, 10 bands can become an additional restriction.

 

[Smartplug]

Concerning full range correction I really think that the precision of supported microphones (as long as we don't have support for calibration files) and the general problems with this approach (e.g. move the mic just a couple of centimetres and the results will vary broadly) are even more of a limit then the 10 bands.

But yes, if you not only want to correct for room effects but also e.g. imperfections of the speakers, 10 bands can become an additional restriction.

10 band is fine if correcting narrow range as it can fix many peaks and dips much accurately but stretching that to full range atlist 20 band would be recommended. I don’t think more correction is necessary would yield much better sounding. Bass and mid bass is where the correction needed to be as these frequencies can muddy and muffled the soundstage.

 

[harkpabst]

10 band is fine if correcting narrow range as it can fix many peaks and dips much accurately but stretching that to full range atlist 20 band would be recommended. I don’t think more correction is necessary would yield much better sounding. Bass and mid bass is where the correction needed to be as these frequencies can muddy and muffled the soundstage.

Even with 20 bands of EQ full range correction is not a smart idea in most cases, though. Too much can go wrong.

 

[Smartplug]

Hi, I have used the wiim amp room correction with the following results. What I would like to know is why the
levels of frequencies above 4K are so elevated? I set the range of correction to 30-4000Hz.

I only use iPhone in fact it’s latest iPhone 16. The measurements impact depending how high you held your phone. In my case, if follow the picture I get roll off at 4K but if I held the phone above my head I get flat response. Try running your mobile higher and lower and see what result you get.

 

[zh_chx]

Hi, I have used the wiim amp room correction with the following results. What I would like to know is why the
levels of frequencies above 4K are so elevated? I set the range of correction to 30-4000Hz.

I got the same curve with my Android phone after recent update of firmware for WIIM Ultra.

 

[Smartplug]

Even with 20 bands of EQ full range correction is not a smart idea in most cases, though. Too much can go wrong.

That might be right but having the option won’t hurt. There’s a lot of variables that may work for others but not on others. I like having choice that I can turn on or off. I tried many different range but the bass region that can really ruin music if not tuned properly. To my case and your miles may vary 20 to 500 to be atlist in my ear most cohesive soundstage. John Lennon imagine sounds great!

 

[ArthurStereo]

The number of bands in the equalizer can be selected, for example, with a slider or a number can be entered. Someone wants 10, and someone else 20. I also like to have a choice. Let everyone decide as they want.

 

[Smartplug]

The number of bands in the equalizer can be selected, for example, with a slider or a number can be entered. Someone wants 10, and someone else 20. I also like to have a choice. Let everyone decide as they want.

I think all these may become a reality once wiim run out of project and looking for input from its user base. I don’t mind having hundreds of features atlist I could try them if improve or harm the sound. I like all features to have toggle that can be switch on and off.

 

[harkpabst]

The number of bands in the equalizer can be selected, for example, with a slider or a number can be entered. Someone wants 10, and someone else 20. I also like to have a choice. Let everyone decide as they want.

It's much more important to separate room correction from general EQ, ideally including PEQ.

If you want to use PEQ for tailoring the sound to your taste of some bad recording or night time listening, you can already decide to use any number of PEQ settings, from 1 to 10.

OTOH, RC will always benefit from using the maximum number of PEQ settings, there's really no point in artificially reducing that number. The only reason would be to "save" some of the PEQ settings for additional "voicing". But as soon as you could simply add manual PEQ (or GEQ for that matter) on top of RC there would no longer be a need to restrict the number or bands for RC. You could simply apply both at the same time.

 

[ArthurStereo]

I like the solution in HouseCurve. First, a measurement is made. The graph is visible. Then, in the Equalize tab, you can change all the correction parameters and watch the correction and simulation graphs of the final effect on an ongoing basis. Only then can you save them.
I transfer the PEQ to RC and measure again on HouseCurve.
Such solutions in RC Wiim would be great.