deleted user
Unregistered
Thanks:
Given thank(s) in post(s)
I have no idea but my guess would be: Mono, but with Dolby SR noise reduction.
Posts: 2,047
Threads: 56
Joined: 2016 Dec
Thanks: 160
Given 1007 thank(s) in 611 post(s)
Dolby Type-A was the original noise reduction process on matrixed SVA Dolby Stereo prints and 70mm magnetic 6-track, SR noise reduction came much later (Robocop and Innerspace were among the earliest SR releases). When AC-3 digital sound was introduced there was an initial period where a film could conceivably be released as either A-Type, SR or Digital so the logo became a bit of a word salad to cover everything ('verify theatre format').
As Allen films are typically mono they would still use the Dolby process to take advantage of the improved sound quality over Academy mono optical (hence SR mono). This applied to later releases with AC-3 tracks where due to the 5.1 layout of the system only a fraction of the available bitrate could be allocated to the centre channel, leaving the remaining bits redundant.
Posts: 1,008
Threads: 33
Joined: 2015 Jan
Thanks: 736
Given 413 thank(s) in 260 post(s)
Dolby became a process used industry wide and in music recording as well which would be used and applied to the tape itself. So most everything on tape from 1971 onward has some form of Dolby noise reduction. Dolby SR being the most advanced version at the time means it was just applied to a mono track.
Damn Fool Idealistic Crusader
Posts: 2,479
Threads: 39
Joined: 2015 Apr
Thanks: 1996
Given 422 thank(s) in 347 post(s)
Country:
As above its noise reduction