Wiim Mini Room correction

[Håkan]

I got my Wiim Mini earlier this week and everything works as it should with Tidal Connect.
One interesting thing about the Wiim mini is the basic room correction.
I tried this with both an iPhone and an older Android phone, and it made quite a difference in the sound.
Today I will compare the sound between Tidal Connect with and without correction, and the same music via CD and Vinyl.
Have any of you tested and heard the difference between the Wiim Mini with and without correction and then with the same music via CD or Vinyl?

 

[Overseas]

DIgital vs analogue sources means the 2 scenarios are not fully comparable. I think vinyl means an additional analog to digital conversion for applying EQ.

 

[DanielT]

I got my Wiim Mini earlier this week and everything works as it should with Tidal Connect.
One interesting thing about the Wiim mini is the basic room correction.
I tried this with both an iPhone and an older Android phone, and it made quite a difference in the sound.
Today I will compare the sound between Tidal Connect with and without correction, and the same music via CD and Vinyl.
Have any of you tested and heard the difference between the Wiim Mini with and without correction and then with the same music via CD or Vinyl?

Do you mean compare songs with and without RoomFit? You can do that by turning RoomFit on and off when you listen. It seems a bit cumbersome with an external source, such as a CD for that. In addition, RoomFit is active for all inputs:

How To Use Audio Input Port of the WiiM Mini - Help Center
28 Aug. 2025 — The WiiM Mini supports all its audio inputs—Wi-Fi/Ethernet, Bluetooth, and Aux In—as sources for your multi-room system. By connecting an audio ...

Optimizing Your Audio Experience: A Comprehensive Guide to RoomFit™ Room Correction

TABLE OF CONTENTS What's Room Correction The Benefits of Room Correction Room Correction vs. EQ Preparations for Room Correction Step-by-Step Guide to Room Correction Tips What's Room Correction Room correction is a process that inv...

faq.wiimhome.com

I bought a Wiim Mini last week. Best Hifi thing I've bought in years, I have to say.
I like the RoomFit function. There is an audible*, better I think, difference with RoomFit. Do a few sweeps and see if you get the same, almost the same, FR results.
*Such a clear difference that I am convinced that I would get 100% correct answers in a blind test by pointing out whether it was music with or without RoomFit.

Here's some more information:

Introducing RoomFit™ Settings

TABLE OF CONTENTS Target Curve Frequency Range Max Gain Min Gain Max Q Non-Boost Mode Built-in Mic Compensation External Mic Calibration Subwoofer Calibration Moving Mic Measurement (Beta) Smoothing Multiple Measurements (Beta) Wi...

faq.wiimhome.com

I don't know if there are any limitations with the WiiM Mini setting in RoomFit vs other WiiM products. I haven't checked it out yet.

Edit:
With RoomFit it sounds better. Mainly in the bass area, where the room creates such a wanky FR that RoomFit improves. For everything above where the room (above Schroeder frequency) does not affect FR then it probably depends mostly on the speakers how much RoomFit does and corrects. If you have speakers with good FR, RoomFit does not need to do so much.

Edit 2:
If you are not already using a microphone other than the one your mobile phone, if you want to sharpen and improve your measurements, check here:

Using an External Microphone for Room Correction

TABLE OF CONTENTS Recommended External Microphones Step-by-Step Guide 1. Connect the External Microphone 2. Launch the WiiM Home App 3. Import the Calibration File (if available) 4. Run the Room Correction Process Common Questions Th...

faq.wiimhome.com

But then you might as well go all the way and get:

REW room acoustics and audio device measurement and analysis software

REW is free software for room acoustic measurement, loudspeaker measurement and audio device measurement and analysis

www.roomeqwizard.com

 

[Håkan]

@Overseas and @DanielT ,
I apologize for being unclear about what I meant in my opening post.
My question was actually whether when you listen to music via Wiim, Mini or another model, there will of course be a greater or lesser difference in the sound with or without room correction, but how big will the difference be if you then compare the same music when listening via CD or Vinyl?
My son and I listened to the same song, "Calling Elvis" by Dire Straits, via Wiim Mini without room correction, then with room correction and finally via CD.
We both thought that the CD sounded just a little bit better than the Wiim Mini, whether room correction was activated or not.
It's not always easy to write exactly what I mean in English since English is not my native language.

 

[DanielT]

@Overseas and @DanielT ,
I apologize for being unclear about what I meant in my opening post.
My question was actually whether when you listen to music via Wiim, Mini or another model, there will of course be a greater or lesser difference in the sound with or without room correction, but how big will the difference be if you then compare the same music when listening via CD or Vinyl?
My son and I listened to the same song, "Calling Elvis" by Dire Straits, via Wiim Mini without room correction, then with room correction and finally via CD.
We both thought that the CD sounded just a little bit better than the Wiim Mini, whether room correction was activated or not.
It's not always easy to write exactly what I mean in English since English is not my native language.

Aha. It can be a bit tricky to test. You have to have the song from the same master. Otherwise you are listening to different recordings.
Same sound level, otherwise the highest wins.
Plus you do it blindly, which you can do/test since you are two people trying to hear differences.

Have you done this test before:

https://www.npr.org/sections/therecord/2015/06/02/411473508/how-well-can-you-hear-audio-quality

 

[Håkan]

Aha. It can be a bit tricky to test. You have to have the song from the same master. Otherwise you are listening to different recordings.
Same sound level, otherwise the highest wins.
Plus you do it blindly, which you can do/test since you are two people trying to hear differences.

Have you done this test before:
View attachment 477628
https://www.npr.org/sections/therecord/2015/06/02/411473508/how-well-can-you-hear-audio-quality

Once again, sorry for being unclear again LOL

When I try to get the right words in English, I forget part of what I was going to write.
We listened to "Calling Elvis" via Tidal Connect/Wiim Mini with and without Wiim's simple room correction (corrected with the iPhone's microphone), then we listened to the same song again but via CD (USA made CD, because it sounds better than the European made).
Overall, I think CD (and Vinyl) sounds better than what Tidal Connect does via Wiim Mini (with or without Wiim's simple room correction), this does not only apply to "Calling Elvis".

One thing about Wiim's simple room correction is that the sound in my living room becomes a little fuller, but at the same time I get a hump in the upper bass that makes the midrange a little less detailed.
Better or worse? Different in any case

 

[DanielT]

Once again, sorry for being unclear again LOL

When I try to get the right words in English, I forget part of what I was going to write.

We listened to "Calling Elvis" via Tidal Connect/Wiim Mini with and without Wiim's simple room correction (corrected with the iPhone's microphone), then we listened to the same song again but via CD (USA made CD, because it sounds better than the European made).
Overall, I think CD (and Vinyl) sounds better than what Tidal Connect does via Wiim Mini (with or without Wiim's simple room correction), this does not only apply to "Calling Elvis".

Do you experience that it sounds better via CD and or vinyl, then you experience it that way.

If we stick to CD quality vs lossless streaming then compared to the same recording, same volume, in a blind test (so you don't know which source is being played).I wonder if anyone could spot a difference. I think not even a very trained listener with a top notch hi-fi system would be able to detect any difference. As far as I know, no one has, given the premises above, succeeded in spotting differences between CD vs. lossless streaming.

Vinyl considering limitations in quality vs CD / lossless streaming. There, perhaps, you can hear differences. If the vinyl crackle reveals it, then a blind test is also invalid. Then you spot directly which source it is.

Are you using WiiM Mini's own built-in DAC or digital out from mini to external DAC?
WiiM Mini's built-in DAC is not state of the art. Is there a audible difference digitally out to a really good DAC or Wiim Mini's own built-in? I don't know. There are measurable differences, though. Check here:

'WiiM Mini Review (Streamer)'

Apr 16, 2022

This is a review and detailed measurements of the WiiM Mini Wifi/Bluetooth streamer. It is on kind loan from a member and is on sale on Amazon for US $89.

As you can see the former factor is a "hockey puck." An included phone charger needs to be used to power the unit over USB-C. It did not work so when I used my computer USB port.

Initial setup is by connecting using Bluetooth and the available App. I connected using BT but the Android app would not see it. I had to shut off BT and turn it back on for it to recognize it. While this is disappointing, I have had similar...

• amirm
• Replies: 1,427
• Forum: Home Music Servers, Computers and Streamers

• 

One thing about Wiim's simple room correction is that the sound in my living room becomes a little fuller, but at the same time I get a hump in the upper bass that makes the midrange a little less detailed.
Better or worse? Different in any case

That's the good thing about it all. You can choose. Many people like a smooth FR, a slightly sloping but smooth FR. This:

But it's not certain that you like it like that.

You will notice after a few months what you prefer, RoomFit on or off. Plus you can turn off single/seprate EQ band in RoomFit. You have to try yourself.

I feel that with RoomFit the subwoofer and speakers blend together better. More bass, well no but I set the bass level separately on my subwoofer. The 60 Hz valley and the 80 Hz peak, which are like that because of my room, are for me fixed with RoomFit. That's a big advantage.

Disadvantage, or limitations with WiiM Mini RoomFit, as far as I can see. Note I may have missed something but as far as I can see. These settings are available according to WiiM for RoomFit:

Introducing RoomFit™ Settings

TABLE OF CONTENTS Target Curve Frequency Range Max Gain Min Gain Max Q Non-Boost Mode Built-in Mic Compensation External Mic Calibration Subwoofer Calibration Moving Mic Measurement (Beta) Smoothing Multiple Measurements (Beta) Wi...

faq.wiimhome.com

But with WiiM Mini I only see this:



WiiM Mini is the cheapest entry-level model in WiiM's range. The more extensive RoomFit settings are perhaps only available in their other models (Pro, Pro plus, Ultra)?

A tip. If EQ is connected, it is always good to have a decent amplifier power. Plus speakers, mainly subwoofers, that can handle a fair amount of power.

 

[Panelhead]

The iPhone as a mic may be the limiting factor in your room calibration. I used a mic included with RoomPerfect to calibrate. But really need a dedicated mic for to take advantage of this simple set of filters.

 

[DanielT]

The iPhone as a mic may be the limiting factor in your room calibration. I used a mic included with RoomPerfect to calibrate. But really need a dedicated mic for to take advantage of this simple set of filters.

That may be the case. BUT with WiiM Mini limits settings in RoomFit , see#7 , is it worth getting an external measurement microphone?

On the other hand, a 24 Euro microphone, if it is possible to download the microphone's calibration files to the WiiM Mini (I had investigated that first), might be worth it. :

DAYTON IMM-6 Calibrated microphone for iPhone iPad and Android - Audiophonics

dayton imm-6 calibrated measuring microphone for iphone ipad and android

www.audiophonics.fr

Dayton IMM-6 microphone setup and measurement

This is a reminder of the setup and measurement procedure of the Dayton Audio iMM-6 microphone used for WiiM Room Correction(RC). If RC supports IMM-6, this might be useful to someone. Please allow me to post in the request thread with the expectation of IMM-6 support. The IMM-6 series is...

forum.wiimhome.com

Edit:
But it's entry-level measurements and basic PEQ as you say. If TS is stuck with this to fix a good FR via EQ then why not go all in with:

REW room acoustics and audio device measurement and analysis software

REW is free software for room acoustic measurement, loudspeaker measurement and audio device measurement and analysis

www.roomeqwizard.com

plus manual settings via:

Equalizer APO

Download Equalizer APO for free. A system-wide equalizer for Windows 7 / 8 / 8.1 / 10 / 11. Equalizer APO is a parametric / graphic equalizer for Windows. It is implemented as an Audio Processing Object (APO) for the system effect infrastructure introduced with Windows Vista.

sourceforge.net

It has its clear advantages, is better, but is, or can be seen as much more complicated than plug and play RoomFit. Depends on interest and what you are looking for, is in need of.

In addition, settings via Equalizer APO on a Windows machine, those settings, through Tidal via Wifi over to the WiiM Mini. I can't even imagine that it works. Maybe it does but I don't know anything about that.

 

[Raj21p]

Yes, the Wiim Mini’s room correction subtly improves clarity, imaging, and bass control. With CDs or vinyl, it smooths peaks and tightens lows, making music sound more natural.

 

[DanielT]

The iPhone as a mic may be the limiting factor in your room calibration. I used a mic included with RoomPerfect to calibrate. But really need a dedicated mic for to take advantage of this simple set of filters.

That seems to be the case.

Can’t I Just Use the Built-In Mics?
What if I use the built-in microphones to do a measurement? How accurate is that? After all, Sonos, as an example, required using an iPhone app and the actual microphones on the iPhone to measure the room and fine tune the response of its speakers, no matter where they are placed. Sonos found out that the MEMS mics on the iPhones are so consistent that they could simply create a compensation file for each iPhone model, and rely on the user’s measurements for their calibration app.

To get an idea of the difference between using a calibrated iMM-6C and the built-in mics of the iPhone 15, I ran pink noise through a pair of speakers in my listening room and measured the total (speaker plus room) response in Audiotools’ FFT package using both mic options. The phone was mounted on the end of a fully extended selfie stick and returned to the same measurement spot within about a centimeter. The responses are shown in Figure A, overlaid with the calibrated mic trace in green and the built-in phone mic in blue. The Apple mics are about 2dB “hotter,” which I confirmed with the SPL meter module in Audiotools set to C-weighting. The frequency response differences between them are most pronounced in the upper midrange and treble. How much of that difference is in the mic elements versus diffraction difference is unclear, but the overall frequency response measurement will nonetheless differ in this manner. Also, the built-in mics will give slightly erroneous SPL measurements.

For what is basically pizza money, high-quality acoustic measurement is now easy and reliable. If you have a phone or tablet with a USB-C connector, the iMM-6C is highly recommended. aX

Fresh From the Bench: Dayton Audio iMM-6C USB-C Calibrated Test Microphone

As mobile devices embrace USB-C, the options for audio measurements expand significantly, making it more reliable, universal and convenient. The Dayton Audio iMM-6C offers a calibrated condenser measurement microphone for Apple and Android tablets and smartphones at an unbelievable low price...

audioxpress.com

Edit:
Since both the Dayton Audio iMM-6 and the Dayton Audio iMM-6C are mentioned now in the thread, here's a little about their differences:



Edit:
I saw it now. Forget what I said about RoomFit settings in Wiim Mini in #7. On the contrary. You can set it in mini. It was easy, I missed it. Just press the gear wheel, at the top right, when you start RoomFit:

I pulled down the level of the Max Gain function. I don't want to stress the amp and or sub/speakers and drive them into clipping, increasing distortion (at higher volumes). Especially not now when I'm using a low powered vintage receiver. On the other hand, I don't need to play at such a high volume right now.

Those who are doing EQ have to try out what suits them, settings-wise. Generally, decent amp power (power headroom) plus speaker/sub with high SPL/ power handling is a clear plus to have during EQ operations. Especially if you're going to play at high volume. EQ + high volume + music with a lot of dynamics then it's a must.

 

[dominikz]

Just a note that WiiM Home App includes pre-calibration for iPhone/iPad mics since app version v3.2.8 (link to release notes):

7. [iOS] Microphone Calibration File: Added iPhone and iPad calibration files to improve Room Correction accuracy.

It is unfortunately unclear which exact device models this calibration applies to.

Also, since we don't know the consistency and tolerance of Apple built-in microphones, it may be wise to use a 3rd party calibrated external measurement mic to validate results.