Room correction

[Yoku-San]

Dear @WiiM Team,

can you share anything about the room correction feature you are supposedly working on?

Thanks for information in advance!

 

[canard]

having an enriched and powerful peq mode, as well as a much richer sub mode would be a good thing.. rew, a micro 8000, a decent sound card, or a umik usb, would already allow a lot of things
;-)

 

[Smartplug]

Is the room correction beta out now?

 

[Brantome]

Is the room correction beta out now?

I’ve not seen the beta sign up they’ve done in the past so I’d guess not

 

[Smartplug]

I’ve not seen the beta sign up they’ve done in the past so I’d guess not

Do you remember if wiim mention that you can use usb hub to connect flash drive and dac?

 

[Brantome]

Do you remember if wiim mention that you can use usb hub to connect flash drive and dac?

I’d think it’d be either or.

 

[Steve Woodhouse]

There has been some talk of somehow enabling a sub out option on the streamers (I’m not sure how, presumably digital out to a DAC for mains, analogue out for the sub). Any sign of this - I was thinking particularly it might be tied in with room correction.

 

[Brantome]

There has been some talk of somehow enabling a sub out option on the streamers (I’m not sure how, presumably digital out to a DAC for mains, analogue out for the sub). Any sign of this - I was thinking particularly it might be tied in with room correction.

I asked a question along these lines to WiiM a long while ago, perhaps with more of a focus on simultaneous multiple outputs and they said they’d get their engineers to look into it. Darko alluded to it in his review of the Amp, but iirc in the context of two grouped WiiM devices with one delivering the main audio and the other the sub audio. I don’t recall seeing any firm commitment from WiiM to actually implement it.

 

[Wiimer]

There has been some talk of somehow enabling a sub out option on the streamers (I’m not sure how, presumably digital out to a DAC for mains, analogue out for the sub). Any sign of this - I was thinking particularly it might be tied in with room correction.

Based on what the support team recently said here, it's highly unlikely that sub-outs will be implemented on the WiiM Pro or pro plus.

Subwoofer out

Just got a ProPlus that is working fine. Would like to have better interface to powered subwoofer. Am currently feeding the sub with rca direct from the ProPlus and passing through via rca out to active speakers. Found this thread from Feb/23 in the FAQ-- Feb 3, 2023 No, the WiiM Pro...

forum.wiimhome.com

 

[Brantome]

Based on what the support team recently said here, it's highly unlikely that sub-outs will be implemented on the WiiM Pro or pro plus.

Subwoofer out

Just got a ProPlus that is working fine. Would like to have better interface to powered subwoofer. Am currently feeding the sub with rca direct from the ProPlus and passing through via rca out to active speakers. Found this thread from Feb/23 in the FAQ-- Feb 3, 2023 No, the WiiM Pro...

forum.wiimhome.com

Yeah, you could take option 1 as being what Darko was alluding to. As mentioned elsewhere by @Mr Ee iirc, you might be able to implement some sort of filter for the sub by agressively applying some PEQ on the WiiM device it's attached to.

 

[Wiimer]

Yeah, you could take option 1 as being what Darko was alluding to. As mentioned elsewhere by @Mr Ee iirc, you might be able to implement some sort of filter for the sub by agressively applying some PEQ on the WiiM device it's attached to.

Yes, I've tried 1 method here before.

Post in thread 'Can MRM play 24/192kHz?' https://forum.wiimhome.com/threads/can-mrm-play-24-192khz.1164/post-15799


Unfortunately, the WiiM's output signal level was too loud for my SW. And I thought it would not be easy to maintain MRM all the time. This method is not practical for me, so I will wait for the Ultra to come.

 

[Steve Woodhouse]

Cheers everyone.

We’re certainly waiting for the Ultra, then.

Such a shame there aren’t RCA outs on the Amp so you could use it as a pre amp.

 

[Steve Woodhouse]

Indeed, it’d be nice to be able to buy it as a pre amp, without the amplification stage.

Once room correction is sorted, possibly a few extra bands of PEQ, that’d be it for me * - forget the Ultra.

* As long as the DAC measured closer to the Pro Plus than the Mini.

 

[Steve Woodhouse]

Yeah, you could take option 1 as being what Darko was alluding to. As mentioned elsewhere by @Mr Ee iirc, you might be able to implement some sort of filter for the sub by agressively applying some PEQ on the WiiM device it's attached to.

What you could do is use the PEQ on both devices, one acting as a high pass filter, the other as a low pass filter, when this facility becomes available, of course.

 

[Brantome]

What you could do is use the PEQ on both devices, one acting as a high pass filter, the other as a low pass filter, when this facility becomes available, of course.

I can’t see what’s stopping that being done already given that PEQ is available on all models - apply PEQ to two WiiM devices and group them. You will have restrictions like Linkplay grouping maxing out at 24/48 iirc but you should be able to try it and see if it works. Unless I’m missing something…

 

[canard]

already first of all, enriching the peq mode would be good..
it's been expected for a while now

 

[Steve Woodhouse]

I can’t see what’s stopping that being done already given that PEQ is available on all models - apply PEQ to two WiiM devices and group them. You will have restrictions like Linkplay grouping maxing out at 24/48 iirc but you should be able to try it and see if it works. Unless I’m missing something…

Have high/low pass filters been activated on PEQ yet?

See bottom bullet point.

 

[Brantome]

PEQ 1 can be LS or PK, 2 & 3 PK, and 4 HS or PK, while the GEQ has ten frequency settings.

Couldn’t you in effect use those as filters by modifying the gain either side of your desired frequency? Maybe not entirely effective or purist, but perhaps worth a try?

 

[Steve Woodhouse]

PEQ 1 can be LS or PK, 2 & 3 PK, and 4 HS or PK, while the GEQ has ten frequency settings.

Couldn’t you in effect use those as filters by modifying the gain either side of your desired frequency? Maybe not entirely effective or purist, but perhaps worth a try?

You could try. But when high and low pass filters proper are enabled, that’d be better.

Better still a crossover, so that these can be set together accurately (above 80hz on one and above 80hz on the other isn’t correct, due to the roll off in each), but I appreciate that’s not going to happen.

 

[harkpabst]

Better still a crossover, so that these can be set together accurately (above 80hz on one and above 80hz on the other isn’t correct, due to the roll off in each), but I appreciate that’s not going to happen.

This is what's available already. A setting of say 80 Hz doesn't mean "everything above that" for the high-pass and "everything below that" for the low-pass. It specifies the crossover point. Depending on filter type and/or slope this means either -3 dB or -6 dB (for all relevant filters).

Thus the summed output of mains and subwoofer will be flat (if their frequency range is flat otherwise in that area and room resonances don't affect this frequency).

I believe the current setting to be absolutely adequate in most all cases. What is missing though is a means of adding delay to either mains or sub. This could be done using distance values or direct numerical input of delay in ms or by means of a virtual phase knob.

The current toggle switch should rather be called polarity, not phase. Unfortunately most sub makers are using this same terminology.

 

[Steve Woodhouse]

This is what's available already. A setting of say 80 Hz doesn't mean "everything above that" for the high-pass and "everything below that" for the low-pass. It specifies the crossover point. Depending on filter type and/or slope this means either -3 dB or -6 dB (for all relevant filters).

Thus the summed output of mains and subwoofer will be flat (if their frequency range is flat otherwise in that area and room resonances don't affect this frequency).

I believe the current setting to beabsolutely adequate in most all cases. What is missing though is a means of adding delay to either mains or sub. This could be done using distance values or direct dinput of delay or by means of a virtual phase knob.

The current toggle switch should rather be called polarity, not phase. Unfortunately most sub makers are using this same terminology.

Apologies, things have become mixed, and maybe in the wrong forum area/thread.

I was talking about with the other streamers.

You’re absolutely right- the WiiM Amp is (should be) ready to do this already.

I have a small concern that ‘room correction’ is going to mean just frequency response + (in the Amp’s case) bass management, but won’t include delay for each speaker. This is especially true as, I suspect, the same room correction feature will roll out over all devices, meaning the possibilities of the Amp are held back by the limitations of all the other devices.