Metering Question - Luna Master Fader

slynch

Member
I recently got myself into a deep-dive regarding metering after watching a YouTube video about using a VU meter for gain staging. Once I started looking into it I immediately started having a million questions and there's a lot of things here that aren't quite making sense to me.

But to keep it simple to start, here's something that I don't understand.

I have a Luna session with a single mono track and the MAIN bus. There is nothing on the MAIN bus, no summing, tape, console, or inserts. On the track I put the eMo signal generator from Waves and set it up with a 1kHz sine wave at a gain value of -12 dB.

Once that is generating a tone I see that the meter on the track shows exactly -12. But the master fader shows exactly -15. Why?
 

UniversalAudio

Official UA Representative
I recently got myself into a deep-dive regarding metering after watching a YouTube video about using a VU meter for gain staging. Once I started looking into it I immediately started having a million questions and there's a lot of things here that aren't quite making sense to me.

But to keep it simple to start, here's something that I don't understand.

I have a Luna session with a single mono track and the MAIN bus. There is nothing on the MAIN bus, no summing, tape, console, or inserts. On the track I put the eMo signal generator from Waves and set it up with a 1kHz sine wave at a gain value of -12 dB.

Once that is generating a tone I see that the meter on the track shows exactly -12. But the master fader shows exactly -15. Why?
-3dB Pan Law.
 

slynch

Member
Ah. Ok thanks Drew. I think you've answered this type of question multiple times in this forum but I didn't put it together until now. I did just verify that if I pan it right or left it goes back up to -12dB on the master fader.

Thanks!
 
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