| Reaching
for a (Digital) Holy Grail
Speaking Broadcast Digital
TV with your Home PC
By Allan
Lundell with Marian "Sun" McNamee
The
Other Side of TV
A True Language?
New TV Delivery Mechanism
Miro
DV300 Digital Video Editing System
Time
and Frustration Tip Savers
Fifteen
Second Summary of Miro DV300
At this point in time, there are some genuine Holy Grails of
the digital revolution that we are on the verge of discovering.
One of the great Holy Grails (one Ive been looking for
about ten years) is the creation of a feature length, broadcast-quality,
all digital video production completely done on ones
personal PC, where production and post production is home-brewed
in ones own den, living, or bedroom.
This is a very cool Grail, as it takes most of the cost out
of the production (goodbye $50+/hr suites), allowing anyone
with an inspiring script, a decent recent home computer, some
prosumer miniDV video gear, time, and basic story telling know
how, to create broadcast quality TV shows! Finally, like freelance
writers with print magazines, a digital video producer can create
and sell shows to all those cable/sat channels looking for original
programming! And hey, if, by some remote chance, no one wants
to buy your shows, there is always your web site, and its
growing capacity to handle multimedia..
When such a powerful medium as television becomes home-producable
on affordable budgets, it means much more than quality personal
productions. It also means your home PC has graduated from being
a text/still frame processor, and has become a true moving picture-processor,
complete with special effects and virtual sets. This is highly
significant, almost as important as the invention of motion
picture machines at the turn of the last century. Why? Because
another digital holy grail is simultaneously realized
the USE of moving pictures graduates too.
Moving pictures, previously limited to functioning merely as
a passive story-telling medium, rise to a more exalted position,
becoming a true human language, embodying form, content and
interactivity (multi-directionality). Eventually, a conversation
will be much more than talking to each other, for well
also easily send moving pixs and sounds to each other
as well. We already see this happening in many online chat environments,
like the Palace.com, where keyboard-controlled icons and sounds
are constantly being played to others in the online shared environment.
Once you learn this new multisensory language our species is
evolving, you can talk to those zillions of people who are still
just on the tube via your computer. ZDTV (www.zdtv.com) is doing
this already. Why not you? If youve got something to say,
why not say it using the most popular, truly global and established
medium ever devised by our species so far, especially if you
can do it by sitting where you are right now? After all, its
just a matter of learning how to slice and dice images and sound
to form messages, a kind of visual email, right? Why should
just a handful of movie and TV geeks in Hollywood and New York
have all the fun?
The
Other Side of TV
There is nothing wrong with television. There never was. Its
just that so far, only half of the medium has been introduced
to most of us. Most of us exclusively watch TV, and do not make
TV. This is akin to knowing how to read, but not write, or like
having only CD-ROMS but no hard disks in ones computer.
There was good reason for this imbalance- TV was hard to create,
making it a big deal to produce.
Until recently, it really did take a big studio with huge lights
and cameras operated by teamsters to create TV. Now, thanks
to our evolving technology, instead of parading people through
humongous studios, its more like Waynes World with better
graphics, where creating decent quality TV is more personable
and affordable on a beer budget. Where the tech goes out to
where life happens, rather than bringing life to the tech. And
soon, the interactive element of TV will find its place, once
and for all shifting TV away from being an exclusively passive
medium and more towards being a genuine human language.
At one time, not that long ago, reading and writing skills
were known to only a few privileged enough to afford them. Is
not TV simply a technical language taught only to a few because,
after all, how many people need to know it to operate the relatively
few one-to-many TV transmission stations around the country?
How many job descriptions in the world say "A fluent command
of the English and TV languages are required for this position?"
What percentage of the worlds workspace can honestly say
on a resume, "I speak TV?" Not many, its safe
to say. For a nation of TV watchers, we must admit that our
"TV writing literacy" is pretty pitiful.
A True Language?
The idea that moving pictures embody
a true human language that can be learned is not new, with origins
as far back as Sergei
Eisenstein, the Russian pioneer of film editing and
montage. As early as the 1920s, he defined the "shot,"
for example, (http://www.unl.ac.uk/sofia/editing/montage.html)
as the basic element of filmmaking, where filmmakers essentially
combine shots to tell a story. A shot was defined as a image
sequence that began when the filmmaker pushed the START button
on the movie camera, and ended when s/he stopped the camera.
In the mid-1960s, the pioneering anthropologist and filmmaker,
Sol
Worth, further defined the shot, the basic grammar
of the cinematic language, as the camera shot (the "cademe"),
and the editing shot (the "edeme"). Cademes are your
raw footage, whats in the camera before you digitize the
footage. Edemes are the video clips on your hard disk, after
you have carefully chosen what to digitize, your editing clips,
the ones you import into Premiere or your editor of choice.
Still, this budding language didnt yet embody some basic
elements of a true human language, like the ability to have
a conversation with someone else. Only in the last ten years
or so have we started to imbue the cinematic language with such
interactive notions.
Now, our CD-ROMs and websites offer many forms of media interactivity,
and soon so will TV. Many industry pundits thought that interactive
TV would happen in the mid- 90s, starting with "profitable"
ideas like movies-on-demand, but now that we have some hindsight,
such ideas were a bit premature and short-sighted. In a real
language, interactivity can be a very rich experience, as anyone
who has participated in a good conversation knows. Such will
be the case with interactive TV as the TV language becomes easier
to speak.
One day, for example, it may be as normal to communicate images
and sound to each other as words are currently. Today, clickable
video is becoming the norm. Tomorrow, our keyboards can be used
to send macros of meaningful video sequences to each other.
In fifty years or so we may have miniature eye projectors sending
thought triggered images directly into someone elses retinas,
creating a genuinely multisensory immersive conversation. Such
scenarios can only happen IF we learn to communicate synergizing
the "stone knives and bear skin" media tools of today,
namely our home PC and camcorder.
And now finally, in 1998 we can begin to realistically do broadcast
quality TV at home! But what about the delivery mechanism, the
important "phonological"
element of the media literacy equation?
New TV Delivery
Mechanism
Global home broadcast stations are becoming feasible and affordable,
especially with the Internet increasing cheap bandwidth to the
much faster xDSL speeds over standard phone lines next year
(400+kb/s, personal broadcast TV will become considerably more
watchable than current the 28.8/56Kbs streamed offerings, more
comparable to our 50- year old NTSC (Never Twice Same Color)
TV standard to which weve all grown to love and hate over
the years.
Now, more and more web sites have become full blown interactive
multimedia experiences, having evolved from their humble roots
as electronic newsletters. Those who make the most innovative
advancements in this new media will not be the current TV networks
or computer behemoths like Microsoft, but people like yourselves,
those with a modest budget, and a genuine desire to create and
broadcast stories and information from the sanctity of ones
own personal environment, without hindrance from others- a natural
evolution beyond the current web site scene.
What follows is my first report from this media frontier- it
is my hope that the issues and problems I have encountered and
solved will save you untold hours of frustration, allowing you
to take the TV medium beyond the point I have achieved. I look
forward to hearing your feedback and progresses...
Using
the Miro DV300 Digital Video Editing System By Pinnacle Systems
At
first glance, the Miro
DV300 editing system has a lot going for it- In one
relatively inexpensive package ($799 retail) you get what appears
to be everything you need to edit your miniDV tapes in the computer-
a PCI card that not only transfers your footage from your DV
camcorder directly to your hard disk via the Firewire port,
but also supports a SCSCI III chain, allowing one to use the
faster SCSI drives currently out there (i.e. Seagates
Cheetah, Barracuda, Quantum Atlas III, etc.). Its software
bundle includes Premiere LE 4.2 (not 5.0) for editing and Pinnacles
own DV Tools package for transferring unedited DV data onto
your hard disk, and later, edited footage back to DV tape.
It also includes a plug-in for Premiere, Miro Instant DV, allowing
full output to tape of Premiere projects via Premieres
Preview mode, instead of having to use the MAKE MOVIE function.
This Miro feature, if, alas, it only worked better, could save
one untold gigabytes of storage space. More on this later.
As
you may have gathered by now, I do have some reservations towards
this system, based on countless hours of frustration I have
experienced while installing and using it. However, if you heed
the following Time and Frustration Tip Savers that follow, you
will be spared much of the agony I experienced, and have a much
more rewarding edit session.
Time and Frustration Tip Saver #1
Firstly, install the Miro system
in a Pentium II, not a Pentium I System 7 machine. We have a
233MMX system that meets the minimum requirements of Miro, but
Miro is not compatible with some System 7 motherboards (including
ours), and Pinnacle Tech Support will basically tell you that
you are out of luck if you have one of the incompatible motherboards.
So, if you are serious about DV editing, do it on a Pentium
II platform. I was able to get it working on a Pentium II 333MMX.
The tech support crew recommend at least a 233MMX, even though
it says on the box the minimum is a 100 MHz Pentium on the box.
After checking out its performance on 233MMX and 333 MMX machines,
it seemed pointless testing it on slower machines.
[The Pinnacle Tech Responds...Tip
# 1 addresses certain motherboards that do not support the PCI
Bridge correctly, with these motherboards the DV300 will not
work, any of the newer PII motherboards will support this Bridge,
usually we have installed and worked with the DV300 on P1 systems,
usually ASUS motherboards, or Intel for best compatibility with
the PCI bridge chip. Another benefit of using a faster system
is that the DV300 uses a software codec so performance scales
with the system processor.]
Time and Frustration Tip Saver #2
Use a Sony
VX1000 camcorder with the Pinnacle DV tools for transferring
tape in and out of the computer. The DV300 system is optimized
for this Sony camcorder, the de facto standard of prosumer digital
video. I did succeed in transferring tape from Canon DV camcorders
( Canon Optura, Canon XL1), but only after much headache. The
Miro drivers are optimized for Sony, even though they have drivers
for the Canon Optura and MV1 machines.
Also of major importance, the version 1.0 drivers do not like
anything except the 32 kHz audio sampling of the VX1000, meaning
that higher sampling rates, like the 48 kHz standard on the
Canon and Panasonic machines, will not transfer to ones
hard disk properly. If you try capturing at the higher sampling
rate you will get this horrible
digital screech in the audio track every few seconds,
completely ruining your sound.
Pinnacle tech support has new drivers to handle this problem,
but the new drivers have other issues, at least at the time
of this writing. Drivers
1.5 beta (available for downloading) allow the higher
48 KHz audio sampling rates by the Canon, Panasonic, and new
Sony camcorders, and have more reliable capture and transport
control of the camcorder via computer, but they destroy the
functionality of the very cool Miro Instant video feature.
Practically speaking, this means you have to MAKE MOVIE and
cannot use Premieres Preview function for sending video
to tape, thereby costing you twice as much valuable hard disk
space, plus alot of extra time.
The only way around this is to
capture video with the latest drivers, uninstall all the Miro
software, then reinstall the old v1.0 drivers, so that Miro
Instant Video once again works. But, (here is the arcane part
that only tech support knows about) before you reinstall the
old 1.0 driver, you must manually remove several .dll files
that the Miro UNINSTALL procedure doesnt do automatically.
For those of you in this predicament, the files to be removed
are cachex.dll, midcont.dll, mmaviax.dll, and aviprax.dll.
[The Pinnacle Tech Responds...Tip
# 2 The Beta software will allow instant video to work if you
uninstall using the uninstall procedure (manually removing the
DLL files, then install the 1.0, then install the 1.5 leaving
out the 1.1 patch) this should allow Instant video to work properly,
and will support the DVCAM format which is 48 KHZ locked audio,
and many newer DV devices.]
Time and Frustration Tip Saver #3
Put all your SCSI hard disks on
the Miro SCSI III chain. This insures maximal transfer rates
of your SCSI hard disks. I found that even the slower hard disks
work fast enough to transfer DV if they are all on the same
chain. My UltraSCSI 9 gig Tomahawk from Micropolis, for example,
proved to be a real workhorse, holding up under heavy work and
extreme heat, unlike my 9 gig Cheetah drive from Seagate, which
burned out after only one month of work. Its replacement
burned out in a month as well. I traded the Cheetah carcass
in for a 9 gig Seagate Barracuda, and have been happy with its
performance. To use drives with SCSI-I connectors on a SCSI
III chain, you need to buy adapters that convert SCSI-I connectors
to the SCSI-III. You can find them at places like Frys
Electronic Supermarket or at online computer parts stores like
CS
Electronics.
[The Pinnacle Tech Responds...Tip
# 3 the performance gain of using the DV300 SCSI controller
is because we use the PCI bridge chip to handle all data going
to or from the 1394 to SCSI or vice versa. this eliminates the
PCI usage for transferring files from 1394 to the SCSI drive,
and from the drive to 1394.]
Time and Frustration Tip Saver #4
Dont even try to edit if
the temperature in the room is greater than 85 degrees F. Even
at 80 F, the DV300 board starts acting really flaky- especially
any operations involving DV in/out put. The Pinnacle DV Tools
Capture routines seem to be very moody - sometimes they just
dont want to work, as if they are taking a break and simply
dont care whats our schedule. My partner, "Sun,"
summed the performance of the board up this way, "When
it works, I love it, but when it doesnt work, its
a time suck mystery." And part of the mystery is solved
by minimizing heat issues.
[The Pinnacle Tech Responds...Tip
# 4 Heat is definitely an issue with the SCSI drives, especially
the cheetah, although I never have heard of any problems with
the board. Usually timeouts, are due to IRQ sharing, making
sure you have the PIIXx update for Win95, or the INF updates
for your chipset from Intel or your motherboard manufacturer.
These will load all the correct system drivers for the system
devices in Win95. Also make sure you have the PCI bus, device
enumeration in Device manager set to use Hardware.]
Time and Frustration Tip Saver #5
Capture video clips less than 2 minutes each. If you do so,
then you can back up your DV files on a CD-ROM writer. DV clips
require between 200 to 300 megs of storage per minute. Writable
CD-ROMs are a very handy and cheap way to store these digital
files, about $1.50 per 600 megs. It also helps to have a fast
CD-ROM reader to move your massive video files back onto the
hard disk. We found it was worth the investment of $80 to install
a 40x CD-ROM drive in our editing system.
Time and Frustration Tip Saver #6
Dont violate the Windows
95 2 gig file limitation size. This is a real important boundary,
meaning that no Premiere Project can be longer than 7 minutes!!
The Miro Instant DV supposed to compensate for that, but it
doesnt always work and often has audio glitches associated
with it. One very disturbing one, for example, happens when
you combine a still frame .bmp or .jpg file with an .avi file
and a transition effect. The resulting audio glitch is a high
pitch stutter that is sure to wake anyone sleeping nearby.
[The Pinnacle Tech Responds...Tip
# 6 Instant video must use all the same format in the timeline,
so first make sure that you have the optimize stills unchecked
in he Make, Compression options. If this is unchecked and the
problem persists , you will have to make movie on the still
to get it into the DV300 codec (the glitch is caused because
instant video must change codecs on he fly) usually the optimize
stills will do it.]
Time and Frustration Tip Saver #7
Stick with Windows 95 and Premiere
4.2 for the time being. The DV300 software does not yet support
Windows 98 nor Premiere 5.0. Using either of these software
packages will waste much of your time.
[The Pinnacle Tech Responds...Tip
# 7 Win98 is fully tested and supported by the DV300 there are
no implications created by Win98 because it is basically Win95
with added features support etc. We have had no problems with
Win98. Premiere 5.0 is not supported currently and will be supported
in the release of the 1.5 DVTools, the current release date
is within the next 4-6 weeks.]
Time and Frustration Tip Saver #8
If strange artifacts start creeping
into your project, like audio glitches, or controls dont
respond properly, save your project and restart your computer.
This is normal.
[The Pinnacle Tech Responds...Tip
# 8 This is usually related to the Preference file becoming
corrupted, usually deleting the PREM32.PRF file will resolve
any project problems, and most important for audio use only
PCM, any type of audio compression may result in audio problems.]
Fifteen
Second Summary of Miro DV300
The DV300 is a good digital editing system offering stunning
results, provided you use a new Pentium II computer, Premiere
4.2 software and a Sony 1394-equipped Firewire camcorder, like
the VX-1000. Any variation on this theme could easily degrade
your experience and results.
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