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Gear / Technical Help => Ask The Tapers => Topic started by: dennisrtyler on April 01, 2009, 10:05:33 PM

Title: Roll Off
Post by: dennisrtyler on April 01, 2009, 10:05:33 PM
should you roll off before or after adding gain?
Title: Re: Roll Off
Post by: Patrick on April 01, 2009, 10:32:40 PM
I would roll off after gain is added.  Changing your gain structure could change your initial EQ decisions. 

Title: Re: Roll Off
Post by: dennisrtyler on April 01, 2009, 10:36:25 PM
I would roll off after gain is added.  Changing your gain structure could change your initial EQ decisions. 


that's what i was thinking. thanks Big Whopper.
Title: Re: Roll Off
Post by: Dede2002 on April 01, 2009, 11:35:29 PM
should you roll off before or after adding gain?

Filter first. Volume or Normalize should always be your last editing step.
Take care
Title: Re: Roll Off
Post by: OOK on April 02, 2009, 02:18:37 PM
I never roll off.  If you have the ability to do it in post I personally feel this is better.  You can never really put back what you didn't record in the the first place. ie If you didn't record the bass in the first place how can you put that same bass back in, you can't.   It is easier to take it out if you have to much....

Peace OOk 8)
Title: Re: Roll Off
Post by: T.J. on April 02, 2009, 02:22:55 PM
i've always used roll off first then added gain second, but i'm no expert when comes to post production workflow
Title: Re: Roll Off
Post by: Gutbucket on April 02, 2009, 02:38:26 PM
I often need to tame the boom but I find a simple high-pass/roll-off/low-cut/call-it-what-you-will is usually too blunt a tool for me (except for lopping off low HVAC rumble in quiet recordings that don't have much bass supporting the music in the bottom couple octaves anyway).   Instead I'll dial in a targeted curve with a parametric or just tweak the graphic sliders in the DAW.  The only roll-off choice I make while recording is that determined by the choice of mic pattern. YMMV.
Title: Re: Roll Off
Post by: Dede2002 on April 02, 2009, 03:04:37 PM
should you roll off before or after adding gain?

Just trying to understand. When you say "roll off" you mean using HPF while editing, right?
If this is the case, one more time, filter first and add Volume or Normalize as your last editing step.
Title: Re: Roll Off
Post by: Patrick on April 02, 2009, 04:07:33 PM
There really are two different schools of thought on this.  I don't think that either way is completely right or completely wrong (e.g, applying EQ after compression), but I have used filters after any fixed gain adjustments in the past with good results.  If someone was going to normalize their track (which I never do), I would filter before.  You don't want to normalize frequencies that are going to be removed.  Cut them out first, so that your normalizing plug in can detect the proper program level and do its job more effectively. 

Title: Re: Roll Off
Post by: Dede2002 on April 02, 2009, 05:51:19 PM
If someone was going to normalize their track (which I never do), I would filter before.  You don't want to normalize frequencies that are going to be removed.  Cut them out first, so that your normalizing plug in can detect the proper program level and do its job more effectively. 


That's my point  ;)
Title: Re: Roll Off
Post by: boyacrobat on April 02, 2009, 06:08:45 PM
roll off is for pussys
learn to respect bass

g
Title: Re: Roll Off
Post by: Dede2002 on April 02, 2009, 07:44:49 PM
roll off is for pussys
learn to respect bass

g

Learn to respect different opinions  ::)
Title: Re: Roll Off
Post by: Patrick on April 03, 2009, 09:52:39 AM
roll off is for pussys
learn to respect bass

g

Learn to respect your playback system, and your ears.

There is a difference between bass frequencies in the program material, and low frequency rumble caused by HVAC systems, stand/floor rumble, etc.  Getting rid of these frequencies will let your playback system run much more efficiently.
Title: Re: Roll Off
Post by: boyacrobat on April 04, 2009, 12:32:17 AM
you decide in post how to tame the ghosts in the machine if any

g
Title: Re: Roll Off
Post by: Dede2002 on April 04, 2009, 02:02:39 AM
you decide in post how to tame the ghosts in the machine if any

g

 ::)
Title: Re: Roll Off
Post by: RobertNC on April 04, 2009, 07:49:37 PM
My only hard and fast rule is don't let dogmatic thinking get in the way of pulling good tapes.

Once I got past this "rule" of you can always take away but you can't add back, I found that for a lot of the types of music I record in the kind of rooms I record in, running my on board 40Hz rolloff really sounds nice.  I'm no sound engineer and don't really understand the differences, but to my ears the results often sound "cleaner" than doing the same amount of roll off in post.

I don't know, maybe I'm just being a pussy.   ;)
Title: Re: Roll Off
Post by: boyacrobat on April 04, 2009, 10:00:44 PM
47 hz might have been the spot
you lost 7 superclean hz of phatt

re create it in post is playing in the dirt.
once you get it clean you always want it clean
roll off is best done like this

g
Title: Re: Roll Off
Post by: RobertNC on April 04, 2009, 11:45:05 PM
Yo g,

I'm not up on  this new math, but I think you meant that super phatt 7 hZ  above 33 maybe?

Anyway I don't drive a tuner car with ground effects and a row of subwoofers in the trunk, and to me the lower range is more pressure than sound.  I don't try to rumble the hood so I like the rolloff myself.   8)
Title: Re: Roll Off
Post by: boyacrobat on April 05, 2009, 12:00:03 AM
see you got it
correction was design

g
Title: Re: Roll Off
Post by: RobertNC on April 05, 2009, 01:30:09 AM
It's all about running gear and figuring out what you like. 

If you really wanna know if the water's just fine, stick your finger in and make up your own mind.   8)
Title: Re: Roll Off
Post by: Gutbucket on April 05, 2009, 11:01:41 PM
I always seem to find the lower register instruments on the right.  Maybe that's an East/West coast deal?  Cello & viola on the right yesterday afternoon, violins on the left. Miami Bch, ocean on the right side facing North.  ;)

Hi-pass on one side? Never considered that before. Interesting.
Title: Re: Roll Off
Post by: Sunday Driver on April 07, 2009, 12:47:13 PM
should you roll off before or after adding gain?

If you remove some of the lower frequiences, you are also going to reduce the average db level of the entire wave form. Therefore, it would probably be in your best interest to remove the frequencies first, and amplify it with some digital gain as a final step.
Title: Re: Roll Off
Post by: boyacrobat on April 07, 2009, 08:11:09 PM
it was so hidden
but i got it

well done on the cloak

g
Title: Re: Roll Off
Post by: T.J. on April 15, 2009, 11:00:43 AM
hey robert,

i recall you talking about using the high pass filter on the 7xx series in the past. what setting do you use? you mentioned 40Hz, but what slope do you use? (12,18, or 24 dB/oct)

the reason i ask is b/c i have an upcoming show with a band/venue combo i always roll-off in post. i'm thinking about giving the 722's filter a shot. in the past i've set my filter in post to 70Hz @ -3dB/oct. I'm trying to figure out which setting would be best in this situation.