I have a Holoplot system at Lightroom Kings Cross in London. The beam forming is very powerful, but off course does obey the pesky laws of physics! You can set up an array of Holoplot cabinets to send a narrow beam of sound to a point on the floor 30m away, and another beam to a point on the floor 1m away from the other point on the floor. As you step between the beams you will hear about a 30dB drop of the audio from the beam you are stepping away from. How directional the beam is depends on the size of the Holoplot array, and the larger it is, the more directional the low frequencies can be, and so frequency range of the content also plays a factor in how directional you can be. In practical terms, it means you can be very directional with high pitched sounds, pretty directional with mid frequency sounds and not so directional with low frequency sounds. So you can’t send two different full-range pieces of music to two immediately adjacent seats, but you can for example send two different voices to two seats that are 1m apart. But if you are using them to cover larger audiences than 2 people(!), the precision of the beam forming becomes very useful in being able to target certain areas (the audience, or groups of the audience) and avoid others (reflective walls) to create a higher direct to reverberant ratio than you would typically expect with a line array type sound system. You can also to an extent send narrow beams of sound at reflective surfaces to create virtual speakers - again the size of the array and the freq range of the content affect the success of this approach.
Compared to other older directional speaker technologies which suffered from not being able to go very loud without distorting, or those that had an incredibly limited bandwidth, the Holoplots can go very loud and are full range. The technology is a big step forwards, Each module of an array has 96 amplifiers and drivers so heat, cost and weight are factors to consider in their use. We have 2 x 4x2 arrays (1,624 amplifiers and the same number of loud speakers). More here: https://www.cxnetwork.com.au/holoplot-x1-the-revolutionary-german-pa-in-london/ Best regards, Gareth Gareth Fry Sound Designer 07973 352669 | gareth...@hotmail.com | www.garethfry.com Gareth Fry Ltd | Registered in UK, No. 09430786 | VAT No. GB 994736753 On 7 Jul 2023, at 19:35, Jack Reynolds <jackreynolds...@gmail.com> wrote: I’ve heard it a few times now, the beamforming is quite remarkable. J Sent from my iPhone On 7 Jul 2023, at 19:17, Augustine Leudar <augustineleu...@gmail.com> wrote: Anyone else bristling with skepticism? Some are claiming one seat can hear one language, the adjacent seat a totally different language with no "bleeding" anyone heard this? Id love it to be true but .... https://www.archpaper.com/2018/02/behold-msg-sphere-precision-sound-las-vegas/ -- Artist website: www.augustineleudar.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20230707/f3bc3bbf/attachment.htm> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on. _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20230707/22c59d3d/attachment.htm> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
