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Does a 'smart' Auto EQ already exist?

No, I don't mean the Auto EQ on Driveracks and DEQ2496s....

I had an idea the other day that could be fantastic for people like me, who have to set up, soundcheck and run sound in small clubs and bars where, in an ideal world, you would like to break out a reference mic and 'pink' the room with AutoEQ to set up your PA with a baseline response curve for that room, allowing you to just do any minor tweaks to taste.

Trouble is that these venues always seem to have several dozen customers before the band even arrives. Leaving aside for one moment my other idea for a gear trolley with a cow catcher on it to clear away those small groups of people who invariably cluster right in the doorways or the narrowest parts of the bar when you're trying to load in or out, the last thing that these customers would put up with is 5 minutes of pink noise whilst you fiddle around with EQ.

So I thought, 'what if' there was some kind of smart device where you could RTA your system to your preferred response curve at your leisure, in any room of your choosing. You could then play some pre-recorded material (again of your own choosing) and tweak the rig so that it was exactly as you and the band members might wish to hear it. Pretty conventional so far.

But, my thoughts went on to...what if you could flip the Auto EQ into 'learn' mode, so that it would then start to analyse the sonic profile of any given playlist of pre-recorded material and learn what those tracks should sound like when played through your ideally EQ'd PA, and store those profiles in an internal reference library. Then, when you arrive at the gig you just set up the PA and hit 'play' on your playlist. The system would then just sit there 'listening' to the reference playlist and tweaking the EQ until the sonic profile of the tracks being played equals the profile it holds in its library. That way, you would be EQ'ing the room and the audience would just think they're listening to your pre-show soundtrack.

Like most 'great ideas' I'm sure I'm not the only one who has ever thought about something along those lines (if I am then I'm off to see my son-in-law who is a patents attorney, 'cos you heard it here first folks), but does anybody know if such a device already exists, or if greater minds than mine are already prototyping?

I'm sure that in these days of digital desks and modelled FX, this is not impossible...after all modelling stuff like the Kemper must use similar comparative algorithms must'nt they?
 
Not sure I entirely understood your post, but the Fender Bassman combo has (had) a room balance control that kind of helped tweak the amp to the room. It wasn't quite a contour contour, it twisted the frequencies in a different way which really was helpful. You get your sound, then when the room fills up make minor adjustments. I thought it was pretty cool and worked well.

GIT268_details_bassman_2-630-80.jpg
 
Look at Room EQ Wizard. Same basic concept as pinking a room but.. It does it in a very short chirp. Of course it is only a baseline and as the room fills, temp and humidity change all that goes out the window... To mix from stage and get things right is a non-trivial task... Any way you slice it.
 
When I ran sound for a local rock band, I purchased a Peavey Autograph EQ. Pink noise generator/real time analyzer. No way around the pink noise though. You placed the mic in several places in the room, and ran the analyzer for each spot. Then you finalized it where it "blended" the EQ for each spot to achieve an overall EQ for the room. Great piece of gear and made my job a lot easier. While the band was playing you could watch the EQ jump from freq. to freq. and kill feedback on any of the frequency bands before it happened. Of course, you still had to tick off any customers in the place at the time with the pink noise. And the room acoustics did change as the place filled up, but it still compensated for that in real-time.
 
I'm not short of devices to EQ the room. I have a DEQ2496 that will do it, I also have an X32 rack mixer where every output has a 6 band parametric EQ, plus the ability to plug in a choice of 31 band graphics as an insert on the output busses upstream of the parametric.

The way I use this is that I have RTA'd my FOH and monitor speakers in open air using the DEQ and copied the resultant curve onto the X32 PEQ for the relevant output buss...since the PEQ is the last thing the signal sees before hitting the power amps, the rest of the system is effectively fooled into thinking it's working into speakers with flat response - you only have to do this once, then you don't need to touch the PEQ again. I then use a stereo graphic insert on the mains and mono graphic inserts on each monitor channel to EQ for the room, I do this using a playlist of pre-show recordings and use my ears to get the recorded tracks sounding good in the room.

What I'm trying to do is get a reasonable degree of consistency from venue to venue, so that all the channel EQs for vocals, guitars, drums (when we mic them) are all pretty much where they should be...

It works to a degree but it would be nice if some sort of EQ device knew what the pre-recorded stuff should sound like so that I could get on with other stuff
 
If you already have the 2496, that integrates with Room EQ Wizard. It seems to me that flattening a room via a series of chirps and then imposing your desired 'house curve' over that is a part of what you're asking for...
 
No, I don't mean the Auto EQ on Driveracks and DEQ2496s....

I had an idea the other day that could be fantastic for people like me,

...

So I thought, 'what if' there was some kind of smart device where you could RTA your system to your preferred response curve at your leisure, in any room of your choosing. You could then play some pre-recorded material (again of your own choosing) and tweak the rig so that it was exactly as you and the band members might wish to hear it. Pretty conventional so far.

But, my thoughts went on to...what if you could flip the Auto EQ into 'learn' mode, so that it would then start to analyse the sonic profile of any given playlist of pre-recorded material and learn what those tracks should sound like when played through your ideally EQ'd PA, and store those profiles in an internal reference library. Then, when you arrive at the gig you just set up the PA and hit 'play' on your playlist. The system would then just sit there 'listening' to the reference playlist and tweaking the EQ until the sonic profile of the tracks being played equals the profile it holds in its library. That way, you would be EQ'ing the room and the audience would just think they're listening to your pre-show soundtrack.

...

That is a truly good idea. As you finish setting up on stage, your gear automatically EQs the room via the learnt songs. Hence no abuse from punters due to the pink noise. I guess the background music would have to be played at performance level (or loudness curve compensation could be built-in to the EQ'ing algorithm...).

I'm imagining a prototype that only works with one song - Hotel California. If you have too many monitors you have to play it three times and the punters abuse you anyway.
 

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