Ow'w'w'w'w, Ow'w'w'w, Kayyyy, so the pre and post fader setting isn't effecting 
the fader of the AUX track.  It's determining whether the send is happening 
before or after the fader of the audio! track, not! the AUX track.  I think 
that's where I was getting confused.  I thought it was effecting after it was 
sent, then, is it going to be pre fader of the AUX track, or post.

Your example with turning up or down the actual audio track's fader on that 
original track, really made it hit home.  Putting it that way in perspective 
really made it make sense.

Thank you Slau for the incredibly detailed explanation.  That really did help 
tremendously.
---
Christopher Gilland
JAWS Certified, 2016.
Training Instructor.

[email protected]
Phone: (704) 256-8010.
  ----- Original Message ----- 
  From: Slau Halatyn 
  To: [email protected] 
  Sent: Wednesday, May 18, 2016 12:08 PM
  Subject: Re: Understanding Pre, vs. post fader sends


  Chris,


  You seem to sort of understand the situation but I think you're possibly 
misunderstanding a couple of things as well. In order to put things very 
simply, I'll address the pre/post fader issue first and then the reverb second.


  When you're using a send to forward a copy of the signal from a track to a 
new destination, the pre/post fader parameter determines whether the output 
fader of the track will affect the level of the signal passing through the 
send. If the send is set to post fader, if you bring the fader down, that will 
also affect the level of the audio being sent through the bus. If you set the 
send to be pre-fader, that means that the level of the audio being sent from 
the track through a bus to some other destination will not be affected by the 
track's fader. It's being sent from a point before the fader. So, if you were 
to take down the fader for the track, the signal is still being passed through 
the send. The level of that signal is determined by the send level. So, with a 
send set to pre-fader, it's possible to send a signal to a reverb, take the 
original track's volume all the way down and have only the reverb come through. 
That's an explanation of the difference between the two.


  Now, your issue with the reverb is related but not entirely due to the 
pre/post setting. What I suspect is happening is that your reverb plug-in is 
not set to 100% wet. Be aware that certain reverb plug-ins have both a balance 
parameter plus a switch that turns the mix to 100% wet regardless of the 
balance parameter. So, if your send is set to post fader and your plug-in is 
set to, say, 50% wet, you're going to be getting 50% of the dry signal coming 
through the reverb plug-in. Thus, boosting the reverb track also boosts the dry 
signal because 50% of it is the dry part of the signal. When you set the send 
to pre-fader and take the track's output all the way down, regardless of the 
wet/dry proportion of the plug-in, boosting the reverb track's output will only 
result in an increase of the wet signal because , with the audio track's signal 
being pre-fader, no dry signal is coming through your outputs and you're only 
boosting the reverb plug-in itself. That said, the proportion will still be the 
same and you're hearing the difference in volume of just the fader on the 
auxiliary track being boosted.


  Here's what you need to do: make sure your reverb plug-in is always 
outputting reverb only, set whatever parameters at your disposal to be 100% 
wet. This way, when you want to boost the reverb level, you're only boosting 
the reverb level and not also bringing up the dry part of the signal which 
would throw your mix out of whack. Conversely, if you bring down the reverb 
level it will also not change the relationships of the dry audio tracks.


  The issue of pre/post is a separate consideration and mostly to do with other 
considerations. Here's one example where a person might use a pre fader send. 
Let's say you wanted to have the sound of a person walking into a hall from a 
distance while speaking or singing and you wanted the perspective of the 
listener to be at the front of the hall. As the vocalist enters the hall and 
travels closer to the listener, the level of their voice would increase. In 
other words, the dry signal level would increase. If you were to put a 
post-fader send on that track and sent it to a reverb, when the signal level is 
low, it would barely send any level to the reverb and the reverb would not 
really be heard. The level of the reverb would be dependent on the level of the 
vocalist's track. Now, if that send were to be pre-fader, the level of the 
reverb would be independent from the level of the track. With that setup, it's 
possible to have the sound of the room be heard as if the voice were coming 
from a distance. By adjusting the level of the reverb a bit, it's possible to 
make it sound like the person's vocal is filling the room but from a distance 
because there's very little direct sound. By slowly bringing up the vocal 
track, more and more dry signal will be heard and, proportionately, it would 
sound as if the vocalist is getting closer but the listener's position in the 
room hasn't changed, only the relationship of the vocalist to the room sound. 
This example is more of a post-production technique for film, television, etc. 
In music mixing, it's more of an artistic call. sometimes people use pre-fader 
reverb purely for effect.


  Hope that helps. Let me know if anything still isn't clear.


  Slau


  On May 18, 2016, at 11:24 AM, Christopher-Mark Gilland 
<[email protected]> wrote:


    Guys,

    Try as I may, I am just! not getting this concept.  I have Googled like 
crazy, but all articles are going way way over my head.

    Basically, here is the scenareo for ya.  Let's say I have two tracks in my 
session.  The first track is called vocal, and it's nothing more than just a 
dry raw mono audio track with me singing in my mike.

    Now, I have a stereo auxiliary track called Vox Verb.  On insert A of the 
vocal mono audio track, I add a send.  On this send, I leave all the default 
values in the send window as ProTools has it natively.  I don't turn the send 
up or down, I don't mess with the pans, nothing.  I just directly close the 
send window when it pops up.

    Now, on the Vox Verb auxiliary track, on insert A, I add a reverb plugin of 
my choice, and tweak it accordingly to my liking.

    What I now am finding is, because by default I'm set to post fader on that 
send which is up on our actual mono audio vocal track, if I move the output 
volume slider on the vox verb auxiliary track up and down, yes, I'm causing the 
reverb wet signal to increase or decrease, more simply put in lamon terms, I'm 
causing the reverb to become more or less in amount, let's say I need more 
reverb wetness.  If I turn the fader up on that auxiliary vox verb track, I get 
more echo/reverb, but it's also making my vocals louder.  My guess is is that 
it's turning up the dry mix along with turning up the reverb.

    With a prefader, I'm finding on the other hand, given again the above 
scenareo, if I turn the output volume slider up on the auxiliary vox verb 
track, the volume of my vocals doesn't get any louder at all.  Just to over 
exagerate things, if I turned the auxiliary track's fader to positive 12DB, not 
that I'd normally do that, but I'm trying to make a point here.  I would find 
that the actual volume level of my vocal hasn't become ear splitting blasting.  
All it did in prefader is to make me sound like I'm in the bottom of the grand 
cannyon.  It seems that in prefader, it's only effecting the reverb wetness 
from the plug I put on insert A of the auxiliary vox verb track.

    So, this leads me to a few questions.  Maybe if you all can address these 
questions in full, this'll start to make more sense.  I think firstly though 
before asking these questions, it's important that you all understand my logic 
of thinking for what a send actually is.  That may be part of my issue right 
there.  I was thinking that basically all a send really is is a pathway for 
lack of better word to send, quote unquote, signal.  Basically, in the above 
situation, regardless if it's pre or post, all I'm essentially doing is sending 
a copy of the audio from my mono audio vocal track elseware.  In this case, I'm 
duplicating it by sending it out to an auxiliary track.  So now, I have two 
instances of the same audio.  One from the vocal mono audio track, and a second 
instance from the auxiliary vox verb track which are now being played at the 
same time.

    IN the old days of analog stuff, you'd often hear about bouncing multiple 
tracks to one track.  I hear that basically was done with sends.  You'd send 
the audio from say, 3 tracks out to just one track which would receive the 
signal from all 3 tracks.  Therefore, you now put effects on that one track 
receiving all three of the others, and now, you've globally effected all 3 of 
the tracks in one shebang.  According to the Sweetwater tech I normally work 
with, he told me that if you wanna get really really technical, technically 
speaking, a master fader is nothing more than a track which has signal through 
a send being sent down to it, so you do anything on your master, it effects the 
whole session.  Again, he said it's not exactly a send, but at the end of the 
day, it's the same concept.

    OK, so here are my questions, now that you get my logic of what I'm 
understanding a send to be.

    1.  I get that pre fader means the signal is being effected before it hits 
the output fader of the vox verb auxiliary track, but in more lamon terms, what 
does that mean?

    2.  I get that with post! fader, the signal is being effected after it hits 
the output fader on the vox verb auxiliary track.  Again, though, in more lamon 
terms, what exactly does that mean is  happening in the audio chain?

    3.  Can someone textually diagram out for me the signal process of both a 
pre, and a post fader send, explaining how exactly the audio is getting from 
the audio track to the auxiliary track?

    4.  Finally, why is it that with post fader, if I move the output volume 
slider on the auxiliary track, the vocal not only gets more reverb, or less 
reverb, but it's also turning up the volume of the vocal audio track at the 
same time, whereas, if I'm set to prefader, then turn up or down the fader of 
the auxiliary track that the audio is being sent to, the only thing I notice is 
that the reverb becomes either more or less intense, as far as the wet mix 
goes.  It gets either more echo, or less echo, but as far as volume goes, 
nothing gets louder, nor softer.

    Sorry to put this on you all to answer in so much depth, but I really just 
am not getting this concept.  I'm trying, honest to God, but it's just not 
making sense.  The more pre school lamon you can put this, LOL, the better.  
Don't use big words, as I'm stupid.  LOL!  Just kidding.  Seriously though, can 
someone help me out here please?

    Chris.


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