Sub help

[dominikz]

looked like this using iPad, since Android asks me to point my phone and app goes upside down sometimes.

View attachment 26845

then after moving the mic 50cm forward (front of sofa) using Android again, Umik1 mic always:

View attachment 26846View attachment 26847

If you can move your listening position like this, that seems to solve most of the issue.
The rest I'd try to solve by adding additional +3dB gain to Sub Out, and by configuring RoomFit correction range 21Hz-200Hz.

Note that RoomFit will only ask you to turn your phone upside down when MMM option is enabled. If you disable it this will not happen, and you will get back the Individual Channel RoomFit variant as well.

 

[khuntim]

That seems to be the main cause, indeed. We can see that severity of the dip decreased by about half (-10dB to -5dB) when measuring just 50cm further in front of the main listening position.

Genius! It sounds great when I put my head forward. when I drop back into the sofa it's on the boomy side of things.

 

[khuntim]

If you can move your listening position like this, that seems to solve most of the issue

Sofa really needs to stay where it is unfortunately.

The rest I'd try to solve by adding additional +3dB gain to Sub Out, and by configuring RoomFit correction range 21Hz-200Hz.

Sub is a bit much in the listening position.

Note that RoomFit will only ask you to turn your phone upside down when MMM option is enabled. If you disable it this will not happen, and you will get back the Individual Channel RoomFit variant as well.

I am using an external mic, should not ask to point my phone? pretty sure MMM was disabled, iPad works okay...

Thanks again

 

[slartibartfast]

Genius! It should great when I put my head forward. when I drop back into the sofa it's on the boomy side of things.

I once had a seat near the back wall at Earl's Court and the sound was dreadful. Similar situation. When I had a sofa against a back wall I moved the sofa forward a little and stored record storage cases behind it

 

[harkpabst]

And if the position of the speakers, the sub and the listening space are pretty much fixed there's only so much room correction can do about it.

Bass will always be over-exaggerated close to a wall. You could EQ for this, but moving your head just a couple of inches will break it immediately.

I am using an external mic, should not ask to point my phone?

IT totally depends on the external microphone. If you use e.g. a Dayton Audio iMM-6C directly injected to the USB plug then the the app should definitely ask you to turn the phone. It's a bit of an annoyance with a UMIK-1 or UMIK-2 but it's still usable.

pretty sure MMM was disabled, iPad works okay...

Better double-check this. If MMM.is disabled but you still cannot select between stereo and individual left/right correction it's time to give feedback to WiiM through the WiiM Home app.

 

[slartibartfast]

Sub is a bit much in the listening position.

Redo RoomFit after adding 3dB to the Subwoofer output. Don't add 3dB after RoomFit.

 

[dominikz]

Sub is a bit much in the listening position.

RoomFit can probably solve excess bass, the reason why I suggested to increase sub level a bit was to raise the level in the dips prior to correction.
But if you're happy already then no need to touch it!

Redo RoomFit after adding 3dB to the Subwoofer output. Don't add 3dB after RoomFit.

Exactly!

 

[khuntim]

RoomFit can probably solve excess bass, the reason why I suggested to increase sub level a bit was to raise the level in the dips prior to correction.
But if you're happy already then no need to touch it!

Got it! will try this tomorrow.

 

[khuntim]

slartibartfast said:

Redo RoomFit after adding 3dB to the Subwoofer output. Don't add 3dB after RoomFit.

Making sense!

 

[EddNog]

Got it! will try this tomorrow.

Yes; this is called adding headroom. You're raising the overall gain level so that dips are better filled; then you will use room correction after that to tame the frequencies with excess room gain. This is one of the most useful features of having a separate subwoofer because if all you have is full-range speakers, this is not nearly as much of an option as you just end up with full spectrum sound being louder (you would need to do the opposite, applying a very wideband high-pass shelf filter to lower the mids and highs, which artificially provides extra headroom to work with in the low frequencies, and now you've lost a very, very large amount of gain to room correction), but the real problem is normally in the bass region (frequencies below your room's Schroeder frequency) because that's where room interactions can cause major, wide-band nulls and/or excess gains (boominess).

All this because they are the only ways to truly avoid digital clipping (which is what you risk if you applied boost filters to dips instead of raising headroom and then cutting excess).

-Ed

 

[khuntim]

If you can move your listening position like this, that seems to solve most of the issue.
The rest I'd try to solve by adding additional +3dB gain to Sub Out, and by configuring RoomFit correction range 21Hz-200Hz.

continue using 50cm forward mic with the +3db sub out?

WHA is now 3.3.5

received a 3m optical cable to go from my laptop/DDC to Ultra with REW, will be interesting to see about best crossover point.

 

[harkpabst]

WHA is now 3.3.5

Just a short reminder: The RoomFit calculations are performed in the cloud, not locally on our phones. Consequently, the WHA version might trigger a different algorithm to be used for filter calculation but there can be changes to the behaviour of RoomFit any time, even if the WHA version doesn't change.

 

[dominikz]

continue using 50cm forward mic with the +3db sub out?

WHA is now 3.3.5

received a 3m optical cable to go from my laptop/DDC to Ultra with REW, will be interesting to see about best crossover point.

You can use the 50cm forward position if that is where your head will be when listening.
This position offers a much better baseline response, and it should be even better once you increase the sub level. Re-running RoomFit after this should result in a smoother overall response at that location. Not sure that you even need to bother much with crossover anymore - unless you notice any sync issues.

In general the idea is to use RoomFit to optimize the sound at your listening position.
If you will sit further back in the end note that you will get the bass suck-out between 60-100Hz again, regardless if the position 50cm in front measures nice and flat.

 

[khuntim]

In general the idea is to use RoomFit to optimize the sound at your listening position.
If you will sit further back in the end note that you will get the bass suck-out between 60-100Hz again, regardless if the position 50cm in front measures nice and flat.

So far measuring 50cm forward is the only way I could get the sub work. -3db sub for listening in the bloated listening position works okay.

I'll try 21-200hz, and +3db sub, a couple positions.