Parallel compression (inthebox) best methods?

For seeking technical help with Digital Performer and/or plug-ins on MacOS.

Moderator: James Steele

Forum rules
This forum is for seeking solutions to technical problems involving Digital Performer and/or plug-ins on MacOS, as well as feature requests, criticisms, comparison to other DAWs.
User avatar
jrdmcdnld
Posts: 523
Joined: Tue Jul 11, 2006 8:48 am
Primary DAW OS: MacOS
Location: Pennsylvania

Post by jrdmcdnld »

Dwetmaster wrote:
jrdmcdnld wrote:I've used that method with large track counts and had no phase problems.
I reroute everything using the Audio assignment. Much faster to assign several tracks...
Good point. I did it the slow way in the vid just to lay it out with less complication.
User avatar
jrdmcdnld
Posts: 523
Joined: Tue Jul 11, 2006 8:48 am
Primary DAW OS: MacOS
Location: Pennsylvania

Post by jrdmcdnld »

Here's a vid testing the phase accuracy between two aux channels with the same input.

http://video.google.com/videoplay?docid ... 9753&hl=en

It's a shame that google video distorts the image so much.

....large track count/plug in delay compensation aux phase test coming soon to theatres near you.....
User avatar
jrdmcdnld
Posts: 523
Joined: Tue Jul 11, 2006 8:48 am
Primary DAW OS: MacOS
Location: Pennsylvania

Post by jrdmcdnld »

thereaktor wrote:Strange, but I do ear a little of phasing on the video you posted or is it just me ?
What you are hearing is phase issues in the overhead mics when the cymbals crash. It's not an aux track issue - proven by that last vid.
User avatar
jrdmcdnld
Posts: 523
Joined: Tue Jul 11, 2006 8:48 am
Primary DAW OS: MacOS
Location: Pennsylvania

Post by jrdmcdnld »

Here's the high track count test. I loaded 20 more tracks into the same session. The extra tracks are routed to the main out, so while they are playing, you cannot hear them.

http://video.google.com/videoplay?docid ... 3079&hl=en

I thought for a second that I heard some phasing happening, but flipping the phase on the one aux track still produced a null signal. ????

....not to mention that my poor old G4 was running the video recording software at the same time....
pcm
Posts: 869
Joined: Sat Jan 29, 2005 10:01 pm
Primary DAW OS: MacOS
Location: woodstock, ny

Post by pcm »

One way to do this with a guarantee of no phase issues is to send the drums to TWO stereo (or mono) busses. Put your compressor of choice on BOTH buses, but BYPASS it on one of them. The aux with the bypassed one becomes your drum submix, and the other one you then use for parallel compression. Mix to taste. No phase issues.
thereaktor
Posts: 39
Joined: Mon Jul 04, 2005 10:01 pm
Primary DAW OS: Unspecified

Post by thereaktor »

Thanx jrdmcdnld for your videos.
What if you had some eq's and a couple reverbs and a couple more sub mixes for say the Gtrs, the horns ...
All this to get your cpu at around 50%.
Where I have a doubt is if DP does delay compensation on the auxes.
I'm not in front of my system now but will try tommorow.

[ot]what program do you use to record the video?
cheers
TheHopiWay
Posts: 551
Joined: Sat Oct 16, 2004 10:01 pm
Primary DAW OS: MacOS
Location: N.W. Washington

Post by TheHopiWay »

Another option is to just duplicate the track/tracks you want to deal with and treat them in an entirely independent fashion. Thanks to track folders once you've tweaked it all it requires negligible mixer real estate.

A side benefit of this method is the ability to adjust individual tracks within the kit with gates or eq settings different from the "main" mix of the drums.
thereaktor
Posts: 39
Joined: Mon Jul 04, 2005 10:01 pm
Primary DAW OS: Unspecified

Post by thereaktor »

So this puzzled me so I went to look in the manual (p.23 of the getting started). and here it was, in front of me.

DP ONLY DOES DELAY COMPENSATION WITH AUDIO FILES BEING PLAYED BACK FROM A HARD DRIVE (or VI being triggered by prerecorded MIDI tracks).

So what pcm suggested is probably a good solution but you will still have a delay of some sort do to the fact that you are using 2 different busses.
thereaktor
Posts: 39
Joined: Mon Jul 04, 2005 10:01 pm
Primary DAW OS: Unspecified

Post by thereaktor »

TheHopiWay has the solution. But now instead of 10 drumsTrack you've got 20 drumTracks which means double the time for mixing if you processor can follow. I like to have EQ + Dynamics on all my tracks :-)
TheHopiWay
Posts: 551
Joined: Sat Oct 16, 2004 10:01 pm
Primary DAW OS: MacOS
Location: N.W. Washington

Post by TheHopiWay »

thereaktor wrote: TheHopiWay has the solution. But now instead of 10 drumsTrack you've got 20 drumTracks which means double the time for mixing if you processor can follow. I like to have EQ + Dynamics on all my tracks :-)
For me it's not that many tracks. I rarely double bus toms or high hat and room mics are always treated as a "separate- from-kit-add-to taste" item so usually it's just 3 extra tracks; Kik2, Snr2, OH2(stereo).
User avatar
Appalachian Boy
Posts: 171
Joined: Sun May 20, 2007 5:57 pm
Primary DAW OS: MacOS
Location: Seattle, WA

Post by Appalachian Boy »

you could bounce the track through the compressor then zoom in really close w/ sequence editor and align the phase. then bring the volume up to where you want it.
Mac Pro, 828 MK1x2, Beer....what else?
User avatar
jrdmcdnld
Posts: 523
Joined: Tue Jul 11, 2006 8:48 am
Primary DAW OS: MacOS
Location: Pennsylvania

Post by jrdmcdnld »

thereaktor wrote:Thanx jrdmcdnld for your videos.
What if you had some eq's and a couple reverbs and a couple more sub mixes for say the Gtrs, the horns ...
All this to get your cpu at around 50%.
Where I have a doubt is if DP does delay compensation on the auxes.
I'm not in front of my system now but will try tommorow.

[ot]what program do you use to record the video?
cheers
I use "iShowU" to record video. It was $20. Google video doesn't give it justice. It really does a great job of capturing video.

Certainly, quirky things can start to happen when you tax your CPU. I dig thehopiway's way of doing parallel compression.

There is one more technique that I don't believe anyone mentioned. You can use a compressor that has a "mix" function on it. A great example is PSP's vintage warmer. The mix knob allows you to mix the dry and compressed signal together to taste just like having two auxes or duplicated tracks. Just make sure you have delay compensation on cause that baby will set you back 511 samples!
User avatar
jrdmcdnld
Posts: 523
Joined: Tue Jul 11, 2006 8:48 am
Primary DAW OS: MacOS
Location: Pennsylvania

Post by jrdmcdnld »

....I wish more plug in designers would put a mix knob on their compressors. If you ever get the chance to mix on a Yamaha aw2816 or aw4416 you'll get mix-able compressors on every channel and bus. Cool!
Kubi

Post by Kubi »

thereaktor wrote:Where I have a doubt is if DP does delay compensation on the auxes.
I've used parallel compression via Aux tracks all the time. But to be safe, I just tested it, and DP most definitely does use delay compensation on the auxes.

Try it:

•••Buss a drum track to an internal buss (i.e. 1-2)
•••Create two auxes with that buss as input. Hit play, you should hear the drum track nice n solid, no phasing, only of course louder than the original.
•••Instantiate Expert Sleepers' Latency Fixer in one of the Auxes. (Latency fixer is a little plug that doesn't do anything, doesn't introduce any delay, but reports to the host that it does. You can set how much of a 'fake delay' it reports to the host.
•••Set Latency Fixer really high, i.e. 4000 Samples.
•••Press play. You will hear a slap-back echo on the drumtrack, since latency fixer reports a delay to DP, and DP compensates for it to the tune of 4000 samples.

QED.

:D :D :D :D
thereaktor
Posts: 39
Joined: Mon Jul 04, 2005 10:01 pm
Primary DAW OS: Unspecified

Post by thereaktor »

OK
after some more testing it does seem that DP compensate also on the aux tracks.
It must have been my session the other day that was ******uped.
Thanks for the links and tips.

cheers
Post Reply