Pro-l is exceeding 0db on master bus even with ceiling set to -.3db. When using the clip settings especially. Regardless, it was my understanding that any clipping would happen internally within the plug and never allow the ceiling to exceed desired settings.

Can anyone shed some light? I've never seen this behavior using fg-x, L2, ozone, t-racks, etc...

Pro tools 10 - all tracks feeding "master" aux track - processing occurs on insert of aux track - auxiliary track sending to stereo audio track for real time mix down.

I should also mention pro l does not show output exceeding 0db. Neither does my "master" aux track in pro tools. It is going beyond 0db on the track I am bouncing (recording) mix down to.

Try enabling/using the oversampling function. 2x or 4x. I never get overs with 4x oversampling....

I buss everything to a Master AUX, then to the 2 mix out. I think there was thread up here explaining why you could put Fabfilter on your AUX master and it would look fine, but for some reason, the MASTER out would hit the red.

Maybe someone can chime in....

Set to linear phase & 4X oversampling :(

This is exactly what is happening. Should be a blurb from fab filter on their site or manual somewhere...but nothing to be found.

Do you happen to render in a different quality than your project? For example, your project is 24/96 and you render to 16/48? Just thinking out loud here..

I always set the output of the daw at -0,1dB and I never have clipping. I also enable inter sample peak protection in Pro-L.

I actually do not render. In PT10 Record the master or auxiliary out to another stereo track within the session. So the properties are exactly the same as the session

Do you have ISP detection enabled? Is Pro-L the last insert on your submaster AUX? Have you done any automation on your submaster or master faders?

Also, Pro-L does feature linear phase oversampling, but does not have a linear phase option — could you clarify what you meant by saying you've set it to linear phase?

I think that buses/auxes won't clip in later PT because it's all floating point processing. An audio tack would deal with whatever resolution you're recording to I'm guessing, so if it's not a 32-bit floating point file then it could potentially "clip". So I'm guessing you could still go 'over' if measuring intersample peaks (at the input of PT... not sure if it does btw).....

I confused it with my other new weapon pro-q no latency, analog, Lin phase options. Sorry, still trying to sort this clipping out. May contact support for an answer...

Pre fade insert vs post fade insert ! Aux prefader where as master track is post fader insert. Try pro L on actual Master track in pro tools. Same result? Also, you can try multing ( control clicking / Windows start I think I'm on Mac ) which is sending output to multiple places. Also doing this can help your Master fader provide an extra layer of control. The Master will show a plus symbol on its I/o drop down if done correct. I usually route to an aux named mixbus, which feeds my print track, with a Master Fader.

I have to say I just tried pro l on my mixbus ( aux insert / pre fade ) which is routed to stereo audio track with no plugs and no clipping or red. I then put the pro l on actual master track ( post fade ) and again no clipping or red lights on print track!

* in pt 12.1 and on you can also do the multing in the I/o setup dialog window.
This multing is important if printing stems of a mix with bus compression, so the stems who played together exhibit the same mix as the compressed 2 mix.

I have experienced same issues you describe before when I had double routed or not had my routing fine tuned in my session hope this helped

I experienced the same problem using pro L in the master track in Logic. If I set the output ceiling to -0.3, the actually output would sometimes exceeds that, so I'd lower the ceiling to -0.4/-0.5 to ensure the output is kept to -0.3.

It's likely your meter settings. If you have anything set to RMS it reflects an average using different equations than Peak settings. I would take a look at that first, especially if you're not hearing obvious digital clipping.

Since your "master" aux track isn't clipping, this seems like a Pro Tools issue, not a Pro-L issue. I'd investigate why the two "master" buses aren't identical.

This is a let down. I've been printing rough mixes in PT like this since the beginning of time...

I can insert any other limiter, smash it to white noise, and it never exceeds the ceiling.

I guess I need to first analyze the mix down to see if it is actually truncated. I guess I also need to investigate it's behavior within Logic..

Make sure the TP (true peak) button is enabled at the bottom right hand corner of the Pro L interface. This seemed to fix the problem for me.