KVR Audio

Igro · Post by **Igro** » Wed Aug 02, 2017 6:19 pm

ilmai wrote:
Igro wrote:I'm using Studio one vu meter, it doesn't have trim option, so before the vu i insert mix tool to lower manually. But I'm interesting if i can get the same result by using mjuc's calibration box? In other words, can i make 0VU within mjuc? SDDR does it.
Click the "GR" label on the MJUC VU meter to toggle between metering modes. Left click to select from a popup menu or right-click to scroll modes. You want to calibrate to have around 0VU on the "IN" meter.

Oh, thank you for that, i didn't know about it.

ilmai · Post by **ilmai** » Wed Aug 02, 2017 6:25 pm

Psync wrote:As for as I know, no, you can't. MJUC allows you to measure your input levels by setting its VU setting accordingly. But, unlike with SDRR, MJUC doesn't offer a trim knob...

AFAIK the only difference between the calibration and trim settings in SDRR is that trim is saved by preset and calibration is global.

Psync · Post by **Psync** » Wed Aug 02, 2017 6:31 pm

Yes, but by callibrating a -24dB signal to 0VU, wouldn't you create a problem for yourself afterwards? I.e. you would have to retrim after MJUC to have the rest of your signal chain at -18dBFS = 0VU again.

Greetings, Psync

ilmai · Post by **ilmai** » Wed Aug 02, 2017 6:37 pm

Psync wrote:Yes, but by callibrating a -24dB signal to 0VU, wouldn't you create a problem for yourself afterwards? I.e. you would have to retrim after MJUC to have the rest of your signal chain at -18dBFS = 0VU again.

The calibration field doesn't affect gain if there's no gain reduction happening.

Igro · Post by **Igro** » Wed Aug 02, 2017 8:17 pm

Ok. I'm puzzled. I see that Studio One VU's -18db (when the arrow hits zero on the VU meter display) it's not the same as say SDDR's input meter (which won't hit the zero). I need to dig this subject deeper.

jens · Post by **jens** » Wed Aug 02, 2017 10:07 pm

Psync wrote:As for as I know, no, you can't. MJUC allows you to measure your input levels by setting its VU setting accordingly. But, unlike with SDRR, MJUC doesn't offer a trim knob...

But still it offers the afore-mentioned calibration.

SDRR offers two ways to adapt iself to the Signal Level - trim and calibration - to a certain extent there's some redundancy.
I would suggest to use the calibration to get in the ballpark, then the trim for fime-tuning and perhaps for automation.

Compyfox · Post by **Compyfox** » Thu Aug 03, 2017 12:36 am

Igro wrote:Ok. I'm puzzled. I see that Studio One VU's -18db (when the arrow hits zero on the VU meter display) it's not the same as say SDDR's input meter (which won't hit the zero). I need to dig this subject deeper.

I think I can solve this riddle:
https://www.gearslutz.com/board/music-c ... dings.html

Looks like the Studio One VU at the default sensitivity setting is a PPM (inertia of approx 10ms on rise) and not a VU (300ms rise/fall). Therefore you get an offset with program material, but an accurate readout with a static 1kHz Sine at -18dbFS.

Sadly, there is no open available manual to dive into (I'm not a Studio One user) to tell you what's going on, and how to set up this VU to run in VU mode and not PPM mode. So I can't help further - I'm sorry.

Thing is... SDRR, MJUC, etc... all run with the VU specs of 300ms. You can use the plugins' "input signal strength" VU mode to gain stage your signal if you need to - you only need a gain plugin in front.

If you need help with PPM / VU usage, take a dive into my KVR Marks.

Igro · Post by **Igro** » Fri Aug 04, 2017 7:12 pm

Compyfox wrote:
Igro wrote:Ok. I'm puzzled. I see that Studio One VU's -18db (when the arrow hits zero on the VU meter display) it's not the same as say SDDR's input meter (which won't hit the zero). I need to dig this subject deeper.
I think I can solve this riddle:
https://www.gearslutz.com/board/music-c ... dings.html

Looks like the Studio One VU at the default sensitivity setting is a PPM (inertia of approx 10ms on rise) and not a VU (300ms rise/fall). Therefore you get an offset with program material, but an accurate readout with a static 1kHz Sine at -18dbFS.

Sadly, there is no open available manual to dive into (I'm not a Studio One user) to tell you what's going on, and how to set up this VU to run in VU mode and not PPM mode. So I can't help further - I'm sorry.

Thing is... SDRR, MJUC, etc... all run with the VU specs of 300ms. You can use the plugins' "input signal strength" VU mode to gain stage your signal if you need to - you only need a gain plugin in front.

If you need help with PPM / VU usage, take a dive into my KVR Marks.

Hi Compyfox. It's turned out that Studio One vu meter doesn't behave the same way as other vu plugins. That's why I was confused. It's been discussed on gearslutz and there is even a video in youtube:

Compyfox · Post by **Compyfox** » Fri Aug 04, 2017 7:45 pm

Er... this was exactly what I was saying in that very post you quoted?

The response time for Studio One's VU is faster than standard VU's, effectively turning it into a PPM (Peak Program Meter). I don't have Studio One, therefore downloading the plugin wouldn't help me. And since there is no public available manual for the Studio One VU Meter, I can't tell you how to set it up properly.

Taurus · Post by **Taurus** » Fri Aug 04, 2017 8:37 pm

What does the compression amount knob, is it the threshold?

Igro · Post by **Igro** » Fri Aug 04, 2017 8:45 pm

Compyfox wrote:Er... this was exactly what I was saying in that very post you quoted?

The response time for Studio One's VU is faster than standard VU's, effectively turning it into a PPM (Peak Program Meter). I don't have Studio One, therefore downloading the plugin wouldn't help me. And since there is no public available manual for the Studio One VU Meter, I can't tell you how to set it up properly.

I just bought VUMT. It has trim options and shows a digital meter too. I have compared it to S1 vu meter. Now i can say that VUMT's - 18dB is S1's - 12db. Even though you said that S1's vu is an RMS, i don't think so. I have a feeling that Presonus made a mistake in labeling their vu. I think i will contact their support.

Igro · Post by **Igro** » Fri Aug 04, 2017 8:46 pm

Taurus wrote:What does the compression amount knob, is it the threshold?

Yes, it is.

Compyfox · Post by **Compyfox** » Fri Aug 04, 2017 9:00 pm

Igro wrote:I just bought VUMT. It has trim options and shows a digital meter too. I have compared it to S1 vu meter. Now i can say that VUMT's - 18dB is S1's - 12db.

May I ask how you "measured" that?

Igro wrote:Even though you said that S1's vu is an RMS, i don't think so.

I never(!!!) said that S1's VU is an RMS meter... I said it's a PPM - a Peak Program Meter. A PPM has a rise of 5ms or 10ms. The offset in the video of about 6-9dB from the GS thread hints at that.

Again - no manual, no confirmation, no further help possible. I don't have(!) S1.

Igro wrote:I have a feeling that Presonus made a mistake in labeling their vu. I think i will contact their support.

They have not. These type of needle meters were called "VU" from "Volume Unit". The difference in these old needle meters is the response time.

You should really, really educate yourself on that topic before throwing around crazy descriptions:
https://en.wikipedia.org/wiki/VU_meter
https://en.wikipedia.org/wiki/Peak_programme_meter

Taurus wrote:What does the compression amount knob, is it the threshold?

No. In this compressor's case, it's an the "input gain" knob, pushing the signal into the fixed threshold - effectively compressing (gain reducing) the signal.

Igro · Post by **Igro** » Fri Aug 04, 2017 9:09 pm

Compyfox wrote:
I never(!!!) said that S1's VU is an RMS meter...

Oops, sorry, it's my typo, i meant the opposite.
Now how did i measure that VUMT's - 18db is the S1's vu - 12db? Because in this setup their readings are matched.

Compyfox · Post by **Compyfox** » Fri Aug 04, 2017 9:13 pm

Which setup?
What test signal?
What settings?

HOW... did you measure?

The more you write, the more I have the impression that you do not(!) know what you're doing regarding measurement tools.

Did you even take at least one glance at my KVR Marks?

Klanghelm MJUC and MJUC jr. released