Broken VU output amplitude after update

[OurBodilyFluids]

Is the VU-Output Amplitude completely broken for anyone else after the latest update?

I understand that it doesn’t serve a functional purpose beyond being visually appealing, but in previous versions, it loosely corresponded with volume levels. Now, the dial barely moves, even at high volumes!

Video of meter at 60% volume.


View attachment IMG_0569.mov

 

[hgo58]

Is the VU-Output Amplitude completely broken for anyone else after the latest update?

I understand that it doesn’t serve a functional purpose beyond being visually appealing, but in previous versions, it loosely corresponded with volume levels. Now, the dial barely moves, even at high volumes!

Video of meter at 60% volume.

View attachment 26693View attachment 26692View attachment 26691
View attachment 26694

Yes. The so called "fix" of the VU meter has degraded the functionality even more than it already was.

I really hope that @WiiM Team will find another group of people to take over and make a real functioning meter.

 

[OurBodilyFluids]

Yes. The so called "fix" of the VU meter has degraded the functionality even more than it already was.

I really hope that @WiiM Team will find another group of people to take over and make a real functioning meter.

Correct me if I’m wrong, but wouldn’t it be relatively straightforward for developers to patch the firmware with a proper VU algorithm that computes a true RMS value?

It’s not as though the Ultra’s hardware is limiting it to a cosmetic feature rather than a functional VU meter… @WiiM Team

 

[WiiM Support]

Hi Team,

We’re actively working on a fix for this issue. In the meantime, please select the Original Signal option for reliable performance. For Output Amplitude, we’ll adjust the minimum threshold from –25 dB to –60 dB in the next update, as the current value is too low. The VU algorithm is already calculating the true RMS value. Thanks for your patience—we’re committed to resolving this quickly and ensuring the best experience.

 

[hgo58]

Hi Team,

We’re actively working on a fix for this issue. In the meantime, please select the Original Signal option for reliable performance. For Output Amplitude, we’ll adjust the minimum threshold from –25 dB to –60 dB in the next update, as the current value is too low. The VU algorithm is already calculating the true RMS value. Thanks for your patience—we’re committed to resolving this quickly and ensuring the best experience.

True RMS is for analog measurement, so unless the VU meter is measuring the analog output of the DAC, that is the wrong value.

The RMS dB is a relatively value, while the digital dBFS is absolute and just a logarithmic representation of the sample volume value.

 

[Machiavelli]

firmly believe that an estimated 97% of the (silent) wiim users are happy with the existing gimmick of flouncing needles. gives them at least a bit of a yamaha, mcintosh or accuphase feeling. for serious use cases it is (censored by myself).

 

[hgo58]

firmly believe that an estimated 97% of the (silent) wiim users are happy with the existing gimmick of flouncing needles. gives them at least a bit of a yamaha, mcintosh or accuphase feeling.

Guess you are right. Although I don't think it's even looking nice. And hard to see from a distance.

for serious use cases it is (censored by myself).

So why not make it serious? It's not hard to do. And then the last 3% would be happy too.

 

[Machiavelli]

long live the 3% and of course you are absolutely right.

 

[hgo58]

If people want to keep the analog scale it's also not a problem. Both scales can be included and there are good conversion tables.



This is not exact mapping as the dB is relative but can be used nicely as long as the max is 0 dBFS (all bits are 1).