Thursday 3 March 2011

'In the box' and 'out the box' mixing - analog summing with cheap analog gear (eg Behringer, Mackie etc)

 So I recently posted a video on Youtube about whether it was worth doing analog summing - even when the only analog gear you have is 'low end' - 'low end' in my case being a Behringer MX3282A Eurodesk analog 32 channel mixer. (Might I add it was kind of cool to find Behringer themselves had checked out my video less then 24 hours after putting it up, and they left a very encouraging comment. So thanks Behringer!)
The Behringer MX3282A in my studio

 See every Joe Bloggs out there with an Mbox and Pro Tools is going on about analog hardware and tubes these days, and how they're like, you know, 'warmer' and stuff. Everybody wants a piece of the analog cake. Mainly probably because they've read it's better, probably understand the principles of it, but don't realise that most of the great analog recordings weren't great because they done with analog gear, but because they were done with expensive, high end analog gear.

Still, with my Eurodesk sitting there going largely unused (it's pretty much used for live stuff, and then headphone mixes and a master volume control in the studio), I was curious to see if doing some analog summing would prove beneficial, despite it not being a Neve or SSL desk. This will sound cliche, but I am becoming increasingly aware that most of my favourite recordings were either entirely analog, or involved tape or a great analog desk somewhere along the line. When you're staying totally digital things can sound very sterile (although I have heard fantastic 'in the box' mixes before), so even though I wasn't expecting some kind of magic 'glue' to bring my mixes together and sounding awesome, the hopeful part of me thought maybe the Eurodesk could degrade the signal a little, in a pleasing way. I am really a fan of the idea of hybrid recording setups, where you go in/out of tracking part analog - one day hopefully I'll get a cool tape machine and everyone will think I'm super awesome, but alas, for now that is but a pipe dream *sigh*!

Before I carry on, let me briefly explain what analog summing is - it's basically passing your tracks through analog hardware at the 'bounce down' stage. So instead of rendering your song within your DAW, you'd send your tracks out to your desk or other hardware, and then pass it back into your DAW, to get the sound of the analog circuitry. Bear in mind good converters are very important, as you're essentially passing things from Analog (when you first recorded the tracks) to Digital (first time into your computer), then to Analog (out to your hardware) then back to Digital (back into your computer.) Cheap converters won't manage this task too well.

So, I decided to take a work in progress track wot I had been working on, send it out to individual channels on my Eurodesk, send those individual channels to a stereo subgroup on the desk, and then send that subgroup back into my DAW. I used Pro Tools 9 with an Echo Layla 3G audio interface. As a brief low down on how to do this, this is how I set it up:

1. Create several stereo buses in Pro Tools (eg a drums bus, a guitar bus, bass etc)
2. Send the outs of the buses to each stereo output on my interface (eg out 1+2 for drums, out 2+3 for guitars etc)
3. Route each stereo output to different channels on my mixer, then send those channels to the subgroups on my mixer
4. Send the subgroup outs back into Pro Tools, through the inputs on my interface (eg drum on subgroup 1+2 through inputs 1+2 etc)

Here are the results of this experiment: (click links to play in your browser)

In the box mix

Out the box mix 

Please note that this is a rough version of this song, with no vocal, and is only partially mixed, with just a little EQ and compression, and no reverbs etc.

In my Youtube video blog I asked you what you thought of the two samples, and which was better etc - but here I'd like to share some of my thoughts:

In all honesty? The results to me are kind of inconclusive - although in a way pretty much what I expected. Now this could be an absolute placebo, but to me it's definitely done something summing the tracks through my Eurodesk. What I'm hearing is that the summed mix is ever so slightly smoother, and it's like there's some subtle excitement going on, as it feels more lively (you can hear this particularly in the cymbals and snare.) The in the box mix sounds a bit flatter. I'm talking a really tiny difference though - I think to the point where for a lot of people it would be negligible, but I would err on the side of it still being worth doing.

Look at it this way, if you have a similar setup to mine, I don't think it's going to harm your mixes to attempt analog summing, it's certainly not going to make them worse, so if you feel it's making even the most subtle of enhancements, then it's worth a shot. Of course there's always the issue of knowing when to trust your ears, but that's another story.... ;)

Thoughts/comments? Please share!

2 comments:

  1. I have that desk too...its sat in the corner for ages now, I used to use it just as u do for sending signals to cans in the vocal booth and as a main control room volume control, sumtimes using it only if I needed to record with 2mics, say if I was recording a mid-side technique..until that is one day it blew sumthing in the psu...I did quickfix to get it up and running again but never did trust it much from then so just got another smaller mixer and was happy as id inadvertently created more room for a couple of midi keyboard/controllers..
    now tho..
    uve got me thinking..
    1..about the ECHO LAYLA 3G LAYLA3G PCI AUDIO INTERFACE ur using..I like how u have 16 outs with that..the price looks good too...can u tell me tho..has it TRS's??..as I can see only 8 jackpointsa for in and out..im hopefully just assuming there on TRS jacks and that can be wired to 2 monos...
    2..Im thinking of setting mine up as a summing mixer now too
    just need to service it as its sat in the corner for years now..do u happen to have a service manual for urs?..I have the schematics and the user manual..but I need 'Service'..
    Finnally Thank you for this, im glad I stumbled over your video on YouTube now :D

    ReplyDelete
  2. Hi Marc,I have 2 x MX3242x mixers linked.I have tried running Protools 9 tracks through the Interface on my Tascam DM4800 digital desk and then out to the Behringers.I have also compared mixing a session in protools and mixing the same session in the DM4800.I was amazed to find that the ITB mixes had a much better Stereo image and clearer sound than through the DM4800.The Summing mixes through the Behringer had a poorer quality again.
    This is totally the opposite of my expectations and i have had great mixes with the Behringer and the DM4800 with a 24 track harddisc recorder using ADAT prior to using protools.The only thing i can put it down to is the Firewire 32 hannel Interface in the Tascam,as the converters have been upgraded by Tascam.When i first got the Tascam i could not come close to the clarity i had with the behringer.After i found that there was a known issue with the DM4800 converters Tascam upgraded them and the Tascams clarity was now better than the Behringer.I was told that Tascam replaced all the converters in the DM4800 but now i'm wondering if they did because at the time i did not have the firewire card and the slot for it was empty.So maybe they didnt replace the converters in that slot.So thanks for your Video and i can only say that i will keep experimenting by changing the firewire card to the slot in the DM4800 that i know has good converters.I will then retry the summing mix through the Behringer and will let you know the outcome.Cheers Gdog

    ReplyDelete