[i.h]

I wonder what application the IBA had in mind for dual language transmissions? The only place at the time that would be able to make use of it was S4C

Since it was an IBA test (and voiced by one of the IBA engineering announcement people) I wonder if they just wanted a real world test of the equipment they used - which IIRC was not identical to the BBC's.

Would they have used this for an early version of audio description, or would there be more efficient ways. I seem to remember our esteemed Technologist mentioning it somewhere.

Probably worth posting this video here - this channel is quite interesting (though he is fixated on Philips test card generators in particular), but this video shows a Philips NICAM encoder and he switches it into dual mode to see if a modern TV works with it at about 18 minutes in

www.youtube.com