07-03-2018, 10:48 AM
Dave, could this arrangement have been an attempt, successful or otherwise, to create a highly directional microphone?
I'm thinking here of the way line source speaker - aka column speakers - focus the sound coverage in the vertical plane whilst giving a wide dispersal action in the horizontal plane (with the column mounted vertically as usually found).
I recall a very interesting use of such speakers that I encountered in the 60s at the BBC studio at the (former) Paris theatre.
The auditorium was, from memory, roughly square and the PA used four line source speakers mounted horizontally, two on each side, at the top of the wall just below the (lowish) ceiling and angled downwards towards the bottom corner on the opposite side.
The coverage was excellent and the shape of the beam prevented both overspill onto the stage and reflections from the back wall which, in a radio studio was, of course, the highly reflective large glass window at the front of the control room..
I also noted an ingenious use for a 5th column - it was suspended centrally over the stage running from front to back and used for talk back. Thus the sound was dispersed from left to right and reasonably constrained to the performing area.
How about a pair of line source speaker using a mere one hundred drivers?
I'm thinking here of the way line source speaker - aka column speakers - focus the sound coverage in the vertical plane whilst giving a wide dispersal action in the horizontal plane (with the column mounted vertically as usually found).
I recall a very interesting use of such speakers that I encountered in the 60s at the BBC studio at the (former) Paris theatre.
The auditorium was, from memory, roughly square and the PA used four line source speakers mounted horizontally, two on each side, at the top of the wall just below the (lowish) ceiling and angled downwards towards the bottom corner on the opposite side.
The coverage was excellent and the shape of the beam prevented both overspill onto the stage and reflections from the back wall which, in a radio studio was, of course, the highly reflective large glass window at the front of the control room..
I also noted an ingenious use for a 5th column - it was suspended centrally over the stage running from front to back and used for talk back. Thus the sound was dispersed from left to right and reasonably constrained to the performing area.
How about a pair of line source speaker using a mere one hundred drivers?
