Speakerplans.com Homepage
Forum Home Forum Home > General > Advanced Discussion
  New Posts New Posts RSS Feed - Beyond Stereo
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Beyond Stereo

 Post Reply Post Reply Page  <12
Author
Message Reverse Sort Order
James Tengo View Drop Down
Old Croc
Old Croc


Joined: 09 May 2008
Location: Brighton
Status: Offline
Points: 2155
Post Options Post Options   Thanks (0) Thanks(0)   Quote James Tengo Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2022 at 3:27pm
We had d&b's take on 3D audio (Soundscape) on the April Groove Armada tour, 5 hangs of KSL across the front of the stage and 32 boxes of Y spread around the auditorium
Back to Top
opus jody View Drop Down
Young Croc
Young Croc


Joined: 06 June 2006
Location: United Kingdom
Status: Offline
Points: 1246
Post Options Post Options   Thanks (0) Thanks(0)   Quote opus jody Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2022 at 3:06pm
Another brucy bonus, the only two main bass dead spots are at each end of the FOH decking, so when the noise police turn up with their measurement mics, guess where we put them? Big smile 6dB extra for free.
Improvised Hardware Music http://vimeo.com/user9389813/videos
Back to Top
toastyghost View Drop Down
The 10,000 Points Club
The 10,000 Points Club
Avatar

Joined: 09 January 2007
Location: Manchester
Status: Offline
Points: 10920
Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2022 at 1:00pm
Nice idea! It’s not a million miles away from how L-ISA works, with vector-based amplitude panning between multiple coplanar identical sources.

If you can stretch to up to 7 ‘stacks’, ideally with a flown pair above the centre stage, then you can get really good results with various amounts of panning of ‘stereo’ sources to each of them. Either via desk or LMS matrices, although the former is preferable if you've got live music sources. 'Locating' a performer to the speakers near to them is much more 'natural' than traditional stereo.

The maths is relatively simple, just needs a tape measure and some inverse distance maths.


Funnily enough, it's also closer to the original Blumlein concept of 'stereo' anyway!
Back to Top
4D View Drop Down
Old Croc
Old Croc


Joined: 13 November 2008
Location: Winchester
Status: Offline
Points: 4257
Post Options Post Options   Thanks (0) Thanks(0)   Quote 4D Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2022 at 12:22pm
Yes indeed look forward to coffee a catch up & a listen.. :)
DMZ. "The bass was intense. Girls were literally running up to stand next to the subs"
Back to Top
opus jody View Drop Down
Young Croc
Young Croc


Joined: 06 June 2006
Location: United Kingdom
Status: Offline
Points: 1246
Post Options Post Options   Thanks (0) Thanks(0)   Quote opus jody Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2022 at 12:15pm
Greetings, speaker planners.
Stereo!
Percieved 3d sound stage, when 2 stereo sound sources make something like a triangle with the listening position. Great for hifi, but completely loses it on large stages, or wide, shallow stages, as described pretty well here:
https://bobmccarthy.com/the-emperors-new-stereo/

So, I had a little 8m x 15m marquee, at Equinox festival a few years back. All good, except we had to fire the music side ways, so by the time a DJ booth had been built against the long side, there was a tiny dance space in the centre, where it would sound great (with stereo stacks) and two huge areas at each end that would have been a diabolical catastrophe of LF phase cancellation, and mucked up stereo imagin in the mid-tops.
I had 8x double 15 and 6x 2 way tops.
It was a small tent, so I split the rig into 4 stacks of 2 subs each, and the 6 tops arranged like this:
L................RL...................RL...............R
1.................2....................3.................4
there would be 3 separate 'zones' of proper stereo.
With all the tops hard-angled over 45deg, I noticed that further back,  facing each of the two centre stacks, you also get a perfect stereo zone between stacks 1 & 3, and 2 & 4, and even further back, you get another perfect stereo point in the centre, hearing only stacks 1 & 4.
Stereo everywhere!! With the added bonus, that with just one top left, and one top right audible (on axis) heard from anywhere, there was no discernable comb filtering.
Awesome!

So, does it work bigger?, Bearded Theory, a 1200+ppl dance tent, with bands.
A large 2 pole big top, again sideways on, with the stage taking up most of the space to the 2 king poles, and the good bit (middle) shrunk even further by the raised FOH possition
I had already tried various set ups to avoid the inevitable 'awesome in the middle, but shit on the sides' effect.
Stereo rig - failed - no bass at the sides
mono central sub - failed - still not enough bass at the sides
So, triple stereo.
4 stacks of 2 x 218 (reflex) and 2 x 215 (reflex) with the same top box arrangement as above (L...RL...RL...R) which neatly put the FOH position on the apex, with perfect stereo between stacks1 & 4.
(The bass in this pic is not correct. Shown is 2 x 215, as I did at Equiniox above, not the 4 subs per stack I used)



This year we did the same, but with all 215's (4 per stack)
It was immediately apparent that as people entered the space, they didn't all head for the 'schweet schpot', but spread really evenly throughout the venue, and the bunch of pint-in-hand audiophiles that normally hang out in the middle, were instead evenly split between the two middle sweet spots, and right at the back, in front of the FOH sweet spot.
It's a winning set up! and no extra processing required.
If you get a wide venue, and have enough bass, & 6 identical tops, then try it!

Bearded Theory 2022
(Credit to Norty 303 & crew for the aMAZING lasers n shit)



This year, at Glastonbury, Glade Dome (in the area where Glade Main usually goes) we have a similar wide & shallow dance floor, so we're going to try the same system.
I suspect it might get a bit smeary outside the dance floor, but should sound super tight, no combing, and full stereo almost everywhere within the area.
Come & check it out. ;)

And for coinvenient reference, we're right next to the 'best sound system on site' so you'll be able to hear if a bunch of speakerplans hippies (and Lee) can get anywhere close. Clown





Edited by opus jody - 08 June 2022 at 12:20pm
Improvised Hardware Music http://vimeo.com/user9389813/videos
Back to Top
 Post Reply Post Reply Page  <12

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.06
Copyright ©2001-2023 Web Wiz Ltd.

This page was generated in 0.094 seconds.