“Almost like a real web site”
 

IN7OMM.COM
Search | Contact
News | e-News
Rumour Mill
Foreign Language
Auf Deutsch

WHAT'S ON IN 7OMM?

7OMM FESTIVAL
Karlsruhe | Gentofte
Krnov | Varnsdorf
Banská Bystrica
Oslo | Bradford

TODD-AO PROCESS
Films | Premiere
People | Equipment
Library | Cinemas
Distortion Correcting
DP70 / AAII Projector
 

VISION, SCOPE & RAMA
1895 Bioscop
1926 Natural Vision
1929 Grandeur
1930 Magnifilm
1930 Realife
1930 Vitascope
1952 Cinerama
1953 CinemaScope
1953 Panavison
1954 VistaVision
1954 Perspecta
1955 Todd-AO
1955 Circle Vision 360
1956 CinemaScope 55
1957 Ultra Panavision 70
1958 Cinemiracle
1958 Kinopanorama
1959 Super Panavision 70
1959 Super Technirama 70
1960 Smell-O-Vision
1961 Sovscope 70
1962
Cinerama 360
1962 MCS-70
1963 70mm Blow Up
1963 Circarama
1963 Circlorama
1966 Dimension 150
1966
Stereo-70
1967 DEFA 70
1967 Pik-A-Movie
1970 IMAX / Omnimax
1974 Cinema 180
1974 SENSURROUND
1976 Dolby Stereo
1984 Showscan
1984 Swissorama
1986 iWERKS
1989 ARRI 765
1990 CDS
1994 DTS / Datasat
2001 Super Dimension 70
2018 Magellan 65

Various Large format | 70mm to 3-strip | 3-strip to 70mm | Specialty Large Format | Special Effects in 65mm | ARC-120 | Early Large Format
7OMM Premiere in Chronological Order

7OMM ON EARTH

Australia | Brazil | Canada | China | Denmark | England | France | Germany | Holland | India | Iran | Israel | Ireland | Mexico | Norway | Poland |  Russia | Spain | Sweden | Turkey | USA |

LIBRARY
Interview | Eulogy
Academy of the WSW
7OMM Projectors
The 7OMM Newsletter
Back issue | Stories
70mm Workshop

7OMM NEWS
2026 | 2025 | 2024
2023 | 2022 | 2021
2020 | 2019 | 2018
2017 | 2016 | 2015
2014 | 2013 | 2012
2011 | 2010 | 2009
2008 | 2007 | 2006
2005 | 2004 | 2003
2002 | 2001 | 2000
1999 | 1998 | 1997
1996 | 1995 | 1994
 

in70mm.com Mission:
• in70mm.com is a free magazine-styled website dedicated to the promotion and preservation of any kind of 70mm film projection, a high-resolution film format. The website serves as a hub for contributing enthusiasts, filmmakers, and historians interested in the technical aspects, history, and cultural significance of 70mm film.

Disclaimer | About
Support us | Staff
Testimonials
 

 
Extracts and longer parts of in70mm.com may be reprinted with the written permission from the editor.

Copyright © 1896 - 2070. All rights reserved.
 


Visit biografmuseet.dk about Danish cinemas
 

Effects Channel Research

Read more at
in70mm.com
The 70mm Newsletter
Written by: Christian Lerch Issue 47 - December 1996
I study sound engineering at the film school in Potsdam-Babelsberg, Germany and I am working on my diploma paper at present. It is titled "Surround Sound In The Cinema". My fist article deals with the history of surround in the cinema. Among other wide screen systems I will be engaged in the sound systems of the different 70mm formats. I am looking for technical as well as dramaturgical information on the surround channel of Todd-AO and other 70mm formats.

If you have any articles about that published in your newsletter, I would be very thankful, if you could send me copies.

Questions are:

*Was a delay implemented in the surround channel of the 70mm magnetic sound like in CinemaScope, which there was used in order to fix the localization of the stage speakers?
*In some theatres the surround channel fed speakers mounted on the side walls, in other cinemas it fed speakers at the ceiling. For which version the films were mixed, respectively, which version was preferred in the dubbing studios?
*What was mixed in the surround channel?
*Was there a change in the surround channel from CinemaScope to Todd-AO?
*How did the use of the surround channel change from the 6-channel application in Todd-AO to the current digital 6-channel Dolby Digital, DTS and SDDS?
*How was the mixdown from 6-channel to mono done, if a 70mm film was copied to 35mm CinemaScope with optical sound?

If any subscribers can help, please contact:

Mr Christian Lerch
Stahnsdorfer Strasse 156c
D-14482 Potsdam
Germany

Phone/Fax: +49 331 717 641
 
More in 70mm reading:



Internet link:

 
 
Go: back - top - back issues - news index
Updated 21-12-25