About the single skin that made sveakul ask to keep in the 'linear' option:
Maybe there was a problem with that 'calibrated' skin, I have no idea.
It isn't worth my time checking because it was just a version for testing purposes.
The regular version is and was easily available and works great.
I have to admit I'm a bit confused about the calibrated issue as well.
What probably makes this 'calibrated' stuff a bit complicated to understand is this:
foobar2000 uses RMS for the needle action.
But these calibrated skin versions are designed for peaks.
That means that if you play a 0 dB sine-wave on foobar2000, the needle will point at -3 dB, which is the correct value for such a sine-wave.
But if you play that same test tone in MusicBee, the needle will point at 0 dB.
Because the MusicBee plugin uses peaks instead of RMS.
The new foobar2000 plugin has the option to use peaks.
So that one will then also point at 0 dB.
But now comes the tricky part:
MusicBee's plugin uses some averaging method for the needle movement.
Which means that
when playing music, MusicBee will show a needle action that is neither identical to foobar using RMS, nor to foobar2000 using peaks.
The difference is especially clear to see at lower volumes.
It will even depend on the content of the music. The sound of a trumpet, a synthesizer, the human voice, etc. may show the same peak values, but the RMS values can differ to a very large degree.
So it will not be possible to create a skin that will behave exactly the same in MusicBee and in foobar2000.
When creating foobar2000 skins you have the possibility to create your own curves for the needle response.
So you could create two different versions of the same skin.
Well, three actually:
One for MusicBee, one for foobar2000 in RMS mode, and one for foobar2000 in peak mode.
So, this is why people shouldn't have some misconception that 'calibrated VU meters are better'.
For playing music it is an irrelevant concept, and they will most likely perform worse than a version that is designed for music.
For people that want to check this out themselves, I have created a new version of AcuVU, now in the foobar2000 bin format. (which is also much better for these kind of skins then previous AIMP versions)
It is calibrated for peaks, so it should be helpful for
testing this stuff.
It can be found
hereA lot of time has been spent getting the meter accurate as it can be and complaining about the linear option which trades accuracy for a more dynamic meter (sometimes) while stating calibrated meters shouldn't be used seems contradictory to me.
I hope the above clears up what I believe is the case, but I'm confused about what you are saying in that sentence.
By 'the linear option', do you mean the functionality when it is on (default), or when it is off (unchecked)?
I'm still curious for someone to name a couple of regular VU meter skins that work better with that (mislabeled) setting 'off'.
Until somebody finally does that I will remain convinced it is a useless setting.