WiiM Ultra Firmware v5.2.714249 - Apr 18, 2025

[WiiM Team]

Regarding Vu-Meter:
- More natural movement according to music
- no delay (before I noticed a delay of sound compared with needle movement)
- Regarding the levels: I have all my library with replaygain info and I use album gain leveling. What I notice is that the 0dB mark matches (at least to my eye observation) to the max level of the reference of replaygain. Altough I'm not discussing this at a scientific level, it works for me as when something passes the 0dB level is because I forgot to add replaygain info to it.

Wich to have (as stated before in other threads from many users):
- an horizontal stereo LED vu-meter (much easier to see at 3-4 meters distance). This one would permit easily to have the track info at the same type (example, leds at 50% top and info at the 50% bottom);
- at least more width on the needles of current ones to better watching (right now I can only use the black background one because with the others I almost can't see the needles...)

Hi pjorgenunes,

Thank you for sharing your suggestions. We will work on improving the width of the needles and will further discuss how to implement the horizontal stereo LED VU meter.

 

[hgo58]

Hi pjorgenunes,

Thank you for sharing your suggestions. We will work on improving the width of the needles and will further discuss how to implement the horizontal stereo LED VU meter.

Please also adjust the scale to fit the digital dBFS volume, with absolute max at 0 dBFS (volume value all 1's). A digital signal don't have any positive gain

 

[Wiimer]

It sounds to me like the top priority for a fix (if not outright revert) should be to get rid of the behavior to force the TV away from ARC when the toggle is on and CEC is wanted, for the "always Ultra, never TV speakers" case.

I haven't seen any requests for this behavior and it's hard to imagine when it's badly wanted (as opposed to a minor convenience for the Ultra+speakers case - one can always switch the TV to speakers manually during times of cacophony). I can see how it's badly disliked by some. I can also imagine it making sense in the code (where TV output state is always synchronized with the Ultra input state), but it ought to be at least optional if not altogether omitted.

I think you are right, but let me just say one thing. This is not a matter of preference, it doesn't matter if like or not. I just want broken toys fixed

Then, fixing whatever is making @hgo58 's TV revert back to ARC out with the switch off - best to always be ARC-unavailable in standby, which would also fix my lesser problem of leaving the TV in ARC out and having it wake up the Ultra and associated $$$ electronics the next time it's turned on for a 10% volume watching session.

Thanks for your continued attention @WiiM Support!

e.g., My Yamaha AVR has two setting toggles, "HDMI Control (CEC)" and "ARC".
(Actually, there is also a standby through, but I won't go into that here.)

When HDMI Control is turned on, ARC is turned on by default. And on top of that, I can turn ARC off. (sure I have never used it..)

If I'm not misunderstand, a separate toggle for CEC and ARC on the WiiM would solve this problem.

And in the future, the ARC toggle should be included in the smart presets so that Remote can switch between TV speakers and WiiM speakers.
(sure I have never use it..)

 

[hgo58]

I think you are right, but let me just say one thing. This is not a matter of preference, it doesn't matter if like or not. I just want broken toys fixed




e.g., My Yamaha AVR has two setting toggles, "HDMI Control (CEC)" and "ARC".
(Actually, there is also a standby through, but I won't go into that here.)

When HDMI Control is turned on, ARC is turned on by default. And on top of that, I can turn ARC off. (sure I have never used it..)

If I'm not misunderstand, a separate toggle for CEC and ARC on the WiiM would solve this problem.

And in the future, the ARC toggle should be included in the smart presets so that Remote can switch between TV speakers and WiiM speakers.

For me the ARC toggle is the input selection, at least when CEC Power Control is off.

You cannot have ARC without CEC. But CEC Power Control is just one of the CEC functions. Volume Control is another.

So with CEC Power Control on, always ARC on. With CEC Power Control off, only ARC when selected as input. This shall be true at any time, both when Ultra is in standby and active, and when TV is turned on or already on.

 

[Wiimer]

So with CEC Power Control on, always ARC on.

At least my AVR does not.
Even with ARC turned off, the AVR turns on in conjunction with the TV (projector) on. I just checked.

 

[hgo58]

At least my AVR does not.
Even with ARC turned off, the AVR turns on in conjunction with the TV (projector) on. I just checked.

That is correct behaviour. But you should not get any sound on AVR then.

I was just saying that I think we have the needed options, just need a bit of rework of functions (and a better name).

 

[Wiimer]

That is correct behaviour. But you should not get any sound on AVR then.

I was just saying that I think we have the needed options, just need a bit of rework of functions (and a better name).

Sorry, I wrote it wrong. Actually it is the other way around.

There are two types of power control I can do between my AVR and the projector.

1) Projector off -> AVR off
2) AVR on -> projector on

If the AVR's CEC is on and ARC is off, turning the projector on will not turn the AVR on, so will allow the projector's speakers to output audio.

 

[onlyoneme]

Hi pjorgenunes,

Thank you for sharing your suggestions. We will work on improving the width of the needles and will further discuss how to implement the horizontal stereo LED VU meter.

Please also implement true peak values or at least over indicators when amplitude exceeds 0 dBFS for the original signal. And the positive gain if there is one as a result of the DSP in the Output Amplitude mode.

 

[hgo58]

Please also implement true peak values or at least over indicators when amplitude exceeds 0 dBFS for the original signal. And the positive gain if there is one as a result of the DSP in the Output Amplitude mode.

You can only get positive dB on the analog output. 0 dBFS is max value for the volume.

dBFS=20*log10(volume/max-volume)

Peak indicator is if a single sample value is max.

Output meter shall be before DAC (digital output) but after all DSP.

Input meter shall be before volume control but after pre-gain.

 

[mach]

If I'm not misunderstand, a separate toggle for CEC and ARC on the WiiM would solve this problem.

The thing is, I think this is too vague and might result in further unwanted combinations. This vagueness of CEC options is common in AVRs/AVPs, by the way.

Let's just focus on the behavior from the new HDMI ARC doc that (I think) bothers you and @harkpabst, while you guys want everything else CEC + ARC:

Switching the WiiM device from HDMI ARC mode to another mode

The WiiM device will not act as the TV's audio output and the TV will revert to using its built-in speakers for audio output.

Previously, disabling this behavior could be accomplished by leaving the CEC toggle off and HDMI autosensing on. The auto-sensing acted as a "CEC power ON control" of sorts, but delayed until you played something. The volume still worked regardless of the WiiM input. It also seems you @Wiimer still want autosensing specifically as a trigger for the WiiM to switch back to HDMI ARC when you resume the TV.

That behavior is not what my request (and I think @hgo58) was asking for, and I for one am indifferent to it. We want this other behavior documented there:

Case	The Option is Enabled	The Option is Disabled
The WiiM device is in standby mode while turning on the TV	The WiiM device will wake up automatically and switch to HDMI ARC mode, acting as the TV's audio output.	The WiiM device will not respond to your TV's power status. You must manually power on the WiiM device and switch it to HDMI ARC mode.

Now, the part where you must switch the WiiM to HDMI ARC mode is again not something I care about, probably even bothering me a bit since it's now two steps to bring the Ultra+electronics in depending what mode it went to sleep in.

In other words, the sync between "WiiM input" and "Act as TV's audio output" is unwanted by some and should at least be optional. Or deleted It is not needed for the feature request to have a standby WiiM not act as TV audio output.

 

[opiszon]

I never want to manually switch WiiM Ultra and never want the TV to switch to internal speakers.

Just that.
It was working before update, now it's not.

 

[Wiimer]

The thing is, I think this is too vague and might result in further unwanted combinations. This vagueness of CEC options is common in AVRs/AVPs, by the way.

Let's just focus on the behavior from the new HDMI ARC doc that (I think) bothers you and @harkpabst, while you guys want everything else CEC + ARC:

Switching the WiiM device from HDMI ARC mode to another mode

The WiiM device will not act as the TV's audio output and the TV will revert to using its built-in speakers for audio output.

Previously, disabling this behavior could be accomplished by leaving the CEC toggle off and HDMI autosensing on. The auto-sensing acted as a "CEC power ON control" of sorts, but delayed until you played something. The volume still worked regardless of the WiiM input. It also seems you @Wiimer still want autosensing specifically as a trigger for the WiiM to switch back to HDMI ARC when you resume the TV.

That behavior is not what my request (and I think @hgo58) was asking for, and I for one am indifferent to it. We want this other behavior documented there:

Case	The Option is Enabled	The Option is Disabled
The WiiM device is in standby mode while turning on the TV	The WiiM device will wake up automatically and switch to HDMI ARC mode, acting as the TV's audio output.	The WiiM device will not respond to your TV's power status. You must manually power on the WiiM device and switch it to HDMI ARC mode.

Now, the part where you must switch the WiiM to HDMI ARC mode is again not something I care about, probably even bothering me a bit since it's now two steps to bring the Ultra+electronics in depending what mode it went to sleep in.

In other words, the sync between "WiiM input" and "Act as TV's audio output" is unwanted by some and should at least be optional. Or deleted It is not needed for the feature request to have a standby WiiM not act as TV audio output.

However, I think HDMI ARC mode is as good as non-existent. Because AoatWwTVio is not working as documented.

 

[Wiimer]

I would also like the team to tell me how to get this to work properly.

 

[hgo58]

I would also like the team to tell me how to get this to work properly.

View attachment 20529

This work exactly like this on my Sony Bravia TV.

Selecting TV input make TV change output to ARC (if not already there).
Selecting another input my TV changes speakers to internal speakers.

My TV behavior is matching the documentation. The issue I have is in the part that is not documented.

What shall happen on the TV when TV is turned on and Ultra stay in standby?

I don't say that the behaviour is ok, just that it matches what is described.

 

[cristoo]

Hello,

My unit unfortunately upgraded by itself (by the we should have choice to apply it or decline by user decision not be forced despite of selection not now option when upgrade prompts) but I have following problem with HDMI

first of all, hdmi auto sensing option (which was very handy and worked well on ultra and amp) is gone (only sensing on optical is stil present) - why ?

Second in following scenario: I power on TV and Chromecast 4k (CEC) and watch Youtube - ultra is being switched to HDMI ARC automatically (CEC) as normal, than I start Spotify Connect - Ultra switches to Wi-Fi, TV is still on, but YouTube is paused.. Then I finish listening of Spotify and push play on Chromast - and previously Amp and Ultra have been switching to HDMI ARC input and it worked flawlessly, now Ultra (I dint check on Amp yet) does not recognize input on HDMI port unless it is switched manually (to HDMI input). This is normal behavior ? coz with HDMI auto sensing it was very convienient that input changed automatically depending on where singal was detected.

Kris

 

[hgo58]

Hello,

My unit unfortunately upgraded by itself (by the we should have choice to apply it or decline by user decision not be forced despite of selection not now option when upgrade prompts) but I have following problem with HDMI

first of all, hdmi auto sensing option (which was very handy and worked well on ultra and amp) is gone (only sensing on optical is stil present) - why ?

Second in following scenario: I power on TV and Chromecast 4k (CEC) and watch Youtube - ultra is being switched to HDMI ARC automatically (CEC) as normal, than I start Spotify Connect - Ultra switches to Wi-Fi, TV is still on, but YouTube is paused.. Then I finish listening of Spotify and push play on Chromast - and previously Amp and Ultra have been switching to HDMI ARC input and it worked flawlessly, now Ultra (I dint check on Amp yet) does not recognize input on HDMI port unless it is switched manually (to HDMI input). This is normal behavior ? coz with HDMI auto sensing it was very convienient that input changed automatically depending on where singal was detected.

Kris

Yes. Very strange that HDMI auto sensing is gone. It was mixed with the optical sensing but that is better than nothing.

 

[Wiimer]

This work exactly like this on my Sony Bravia TV.

Selecting TV input make TV change output to ARC (if not already there).
Selecting another input my TV changes speakers to internal speakers.

It appears to be a test unrelated to the document I posted. Previously there was no need for manual input switching...

My TV behavior is matching the documentation. The issue I have is in the part that is not documented.

I don't think so.

What shall happen on the TV when TV is turned on and Ultra stay in standby?

I have not tested such a situation in my living room because the TV power supply and the WiiM power supply were always interlocked. But I will test it later.

 

[CliffyBC]

Why don't Wiim just revert the firmware back to the previous version there is clearly something not right with this release?
17 pages of discussion on this forum mostly about these changes to HDMI ARC and no one seems to know exactly what's actually happening. I've read every opinion and I've just got more and more confused.
Personally I don't have a problem with how HDMI was working, it did what I wanted it to do but clearly some users don't like how it was working for them, this ought to be easy to solve and then everyone would be happy. Maybe Wiim support could let us know what is going on?