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Audio
Formats:
Which One Is Winning?
by Scott
Burnette
Among the conferences offered at this
year's ShowBiz Expo was "The Format Wars: Sound Recording
for Film and TV." Sponsored by the Cinema Audio Society, the
session was one in an ongoing series of discussions over the
multitude of audio formats, and it addressed the use of
digital audio from start to finish in film production, a
subject admittedly much bigger than the one hour scheduled
for it.
Moderating was John Coffey,
president of Coffey Sound and Communica-tions, with
speakers Mark
Ulano, a production mixer,
and David Fluhr, a post-production mixer at Todd AO
Studio.
Current practices on the set belie the
rapid changes underway. Ulano noted that 1/4" analog remains
the predominant recording format. Meanwhile development of
digital audio is moving in new directions, even as DAT
machines are gaining acceptance in production and
postproduction. One new recorder is Deva, for example, which
records audio (96 kHz, 24 bit) to an internal hard drive -
not tape. Jaz drives are then used to transfer the audio to
post production as a file format. Another technology
mentioned is a laptop computer with "Pro Tools-like"
software. However, the 1/4" Nagra remains the benchmark for
reliability and is considered necessary as a back-up,
although Ulano described Deva as the first recorder he's
seen designed to handle the rigors of production.
Because there is no clear standard,
communication is becoming more important between production
and post-production people, the "sound community" as Ulano
calls it. Among the considerations, noted Fluhr, is whether
equipment "handshakes down the line" from start to
finish.
Of course, pre-planning is helpful,
but not always possible. Sometimes the major production
decisions have been made before post production houses
become involved. Facilities such as Todd AO must be
flexible, adding new formats to accommodate clients. While
costly, the present climate affords opportunities as well -
for those with the willingness to work out unexpected
problems. Fluhr recalled that recently a studio approached,
"with a limited budget, not a lot of time and they didn't
care how we did the mix." This became an opportunity "to
push the envelope" using a Fairlight Digital Audio Dubber
and "a potpourri of digital formats," including DA 88s and
hard drives, in addition to analog audio. Fluhr and his
colleagues were given a chance to learn the good and the
bad. The good: picture changes are much easier (and cheaper)
recording to digital drives. The bad: the system struggled
with complicated edits (a lack of processing power was the
problem) but a workaround was developed. Later, the music
editor's computer system would suffer a hard drive crash.
However, helped by analog back-ups, the project stayed on
track and finished on time and on budget.
As actual broadcast of HDTV draws
near, Fluhr sees more growing pains when six, or even eight
tracks of audio will be available to home viewers. Consoles
are getting larger to accommodate more tracks, yet
technology won't change the craft involved. The Exorcist
stands out as an example where "the use of silence gave you
the creeps...the use of sound was elegant, simple."
The future holds questions not just
for the eventual format winners, but for the longevity of
current digital tracks. Coffey noted that some digital
recordings are useless after just five years. As Ulano
noted, actual release of a show is everyone's primary focus,
but proper archiving should be a part of the process,
preserving the corporate and creative equity
involved.
For more information on the Cinema
Audio Society and its meetings, contact Laura Long at
(818) 752-8624.
Scott Burnette is the Avid assistant on 'Emma's Wish', a
movie of the week.
Reprinted from
The Motion Picture Editors Guild Newsletter
Vol. 19, No. 4 - July/August 1998
Guild
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