Aaron Heller wrote:
Sorry to quibble, but if I feed a signal into the W and X inputs (with
appropriate scaling) and ground Y and Z, then the soundfield controls on a
Mk4 behave like a B-format panner. Right?
You are right.
The soundfield controller uses two switches to select the quadrant and then
a conventional pot. It does elevation too.
Yep. Audio & Design also had a 1U box called B Format Converter (if I remember
the name right). It was used for panning in four quadrants. You could feed the box
from for example four AUX sends in a console and by selecting two Auxes you could
place a mono sound somewhere in the soundfield. This box was horizontal only.
Also, I notice that the "transcoder" has LF, RF, LB, RB inputs. I assume
those are used to transcode quad to UHJ.
Yes. If you look at the manual, you'll see that the so called "Front stage" was 180
degrees wide in front of the listener and the "Rear stage" was limited to 150 degrees in
order to avoid too large phase differences in teh UHJ signal.
I used the transcoder for all of the radio dramas I made in the nineties. The
basic tool was the Quantec Room Simulator (a reverb), the rear outputs were
routed to the Rear Stage of the Transcoder. Of course I panned also direct
sounds to the rear, especially the sound effects. I usually kept the dialogue
in the front.
Eero
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