From: Steve Smolian <[log in to unmask]>
>>>> Tom and anyone else with the answer,
>>>> At what speed were Everest's 35mm recordings made?
>>> The normal 35mm speed, 90 feet per minute, which is 18 inches per
>>> second. Mike Biel [log in to unmask]
>> Mike is 100% correct. There's only one standard speed for that format,
>> at least circa early 50's when those Westrex machines were built.
>> 90 fpm, 18IPS. I can't think of any varients but maybe Scott Smith
>> will chime in and confirm or correct that. -- Tom Fine
Aaron Levinson <[log in to unmask]> wrote:
> That was what I recall. It was a non-standard speed by conventional audio standards.
Actually "conventional audio standards" would show that 90 feet per
minute or 18 inches per second are the ORIGINAL audio standard, since it
was set in 1926. And don't forget that the original magnetic tape speed
was set at 100 cm./second around 1934 and only changed to 30 IPS around
1937. 15 IPS was a post-war situation. I think the Philips-Miller
machine also ran at 90 feet per minute/18 inches per second. As you
will see below, in comparison, 18 IPS is a VERY conventional speed.
There is a possibility that the Cinerama speed might have been different
since their picture frames were six sprocket holes high instead of the
usual four and mostly ran at 26 frames per second instead of 24, but
they might have still run the sound at the normal speed. I don't see
the sound specs on-line.
VistaVision ran horizontally at 8 perfs per frame in the camera which
was double the conventional speed, but was rarely projected that way, so
they also might have kept the sound track film at normal speed. Again I
don't see the sound specs on-line.
Todd-AO used 70mm film and the original standard was a frame 5 sprockets
high and a frame rate of 30 fps. Since the sound was on the same film
for the projection print, that would be a very fast speed. But I
suppose the capture machines ran at regular speed -- but again nothing
about it on-line.
NOBODY SEEMS TO CARE ABOUT THE SOUND, ONLY THE DAMN PICTURE!!!!!
Tom, this might be your NEXT research project!!!
Mike Biel [log in to unmask]