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Latest HD/SD workflow tips for FCP7:
AJA KONA/IO
Matrox MXO2
Blackmagic DeckLink
Black movie:
How to Use
NLE Calibration
DV:
DV Workflow
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If the dongle does not light up:
If it is not lit, it
usually means that the dongle drivers are not installed, or
became uninstalled. Installing the latest version of the
software (licensed version) from our
Download page
will re-install the dongle drivers. If this doesn't
work, the key might not be inserted fully into the USB
connector, or it might have been damaged and will need to be
sent in for repair.
If the dongle DOES have a red light
lit: There are a number of possible problems:
- Are you sure you are looking at the
correct dongle? A number of other high-end video software
packages use similar dongles. Make sure the dongle you are
looking at has a CPC key chain on it.
- Is the dongle plugged into a USB hub
or extension? Some hubs create problems for dongles, so
it’s best to plug the dongle directly into your computer.
- Often, all you need to do is unplug
your dongle from the computer, wait about 5 seconds and
plug it back in. This works surprisingly often. You might
need to restart your computer too.
If you don't have a dongle:
Our software
(except for the demo version) requires a dongle to run. If you don't have a dongle or it has been lost,
you will have to purchase one.
2.
I'm seeing the wrong caption in time-stamp mode, or all
my captions are one sentence early.
When you are in time-stamp mode, the
caption that you see on the screen is not the caption
that will appear at the current time (the part of the video that is currently
playing). Rather, you are seeing a preview of the
NEXT caption that will appear at the time when you hit the "In" key.
This makes time-stamping much easier, because you can preview the next caption coming up
and you
know what to listen for. You simply hit the "In"
key when you hear the first words that match the caption currently shown on screen.
When you go to Autosync
mode to watch the video in sync with the captions, the
correct caption should appear in sync with the video.
If you made a mistake, you can easily correct one (or
all) captions using the "Ripple Time Codes" feature,
instead of re-doing the time-stamping from scratch.
3. My captions/subtitles are drifting out of sync.
Drift, in this case, refers to captions
that start out with the correct timing at the beginning of
the video, but slowly become earlier and earlier (or later
and later) over the duration of the video. If all of
the captions are off by the SAME amount, that is not drift
(and in that case, it can easily be fixed with "Ripple Time
Codes").
The most common reason for drift is the difference
between drop frame and
non-drop frame time code.
The difference between them is about 3.5 seconds per hour, or
about 1 second per 20 minutes of video. Most NTSC videos are
drop frame but some videos are non-drop frame. This
refers to the way frames are counted and has nothing to do
with "dropped frames" that occur in an NLE system.
Make sure you are in the right mode (DF or NDF)
for the video you are time
stamping. If you already did some time stamping in the
wrong mode, CPC software can easily convert a caption project
from DF to NDF mode or vice
versa. You can also use the "Stretch/Shrink Time Code"
feature to adjust the drift by a certain number of seconds,
even if you don't know which mode you're supposed to use.
If the drift is more severe, it could be another time code issue (NTSC
vs. PAL, 30p vs. 24p, etc.), or the captions/subtitles
may have been timed incorrectly.
4.
My DVD captions aren't working at all, or are way off.
First, make sure you're viewing the authored DVD
in something that can enable closed captions and that the closed
captions are turned on. You will not see the captions in the
DVD authoring program. If you're not sure if your player
supports captions or that captions are turned on correctly, try
playing a purchased commercial DVD to see if the closed captions
(not subtitles) appear.
For info on common DVD closed caption
display problems,
click here.
Assuming that your player is playing back closed captions from other
DVDs but not from the one you authored, the most common issue is a time code mismatch
between the DVD project and the SCC file which contains the closed
captions. Many NLE systems use a timeline that starts at 1
hour (01:00:00:00) instead of at zero, and this timing is sometimes
preserved when you move into authoring the DVD.
If your SCC file captions start at zero hours but your DVD track
or MPEG-2 file starts at 1 hour, then all of the captions will be 1 hour
early or not appear at all. Conversely, if your SCC file captions start at 1 hour but
the DVD track or MPEG-2 file start at zero hours, then all of your
captions will be 1 hour late (or if your DVD is less than one hour, they’ll
never appear at all).
5.
My black movie (line 21) captions aren't showing up or are
garbled.
See this page
for general information about the black movie workflow.
If you are having problems, the most common reasons are:
-
Using DV via Firewire (IEEE1394, iLink): The
black movie workflow does not work if the NLE is connected to a
DV deck by Firewire, because DV video is only 720x480 and the
black movie method requires 720x486. You
must either connect to the DV deck by a video cable (SDI,
component, S-Video, composite), or for Firewire use one of the
DV workflows instead of a black movie.
-
Wrong Row/Column settings:
Click here and follow
the calibration procedure. You must set the correct Row &
Column before exporting a black movie. If you used the wrong
settings, you will need to correct them and export a new black
movie.
-
Wrong Sequence settings in NLE: they must be
720x486 (not 720x480), 29.97fps, with the proper field order set.
-
Avid users: use
"ITU601" Effect Aperture, 1:1 Render setting (not DV), and
enable "VBI Preserve" in the Video Output Tool. To crop
the black movie, use the "3D Warp" effect on the black movie
track with Crop > Bottom set to 980 (leave Crop > Top at 999),
then render the effect. External link:
Avid knowledgebase.
-
Garbled captions (such as dropped or repeated
letters) are usually caused by dropped frames in the NLE system
output. You may need to render the video first so it can
play out real time without dropping frames.
-
For Avid systems, use the codec "Avid
Meridien Compressed" with a color depth of "Millions of
Colors" (not millions+). For other NLEs
(Premiere, Final Cut Pro, etc.) the recommended codec is
Animation.
6.
My caption file (QuickTime or SCC) for Final Cut Pro 7 isn’t
working, or the caption timing is off.
This common issue is due to the way FCP7 reads the closed captions track.
FCP7 expects that 00:00:00:00 in the
caption file aligns with the first frame of your sequence, no matter
what time code the sequence starts at, I.e. the caption file time codes are not
linked to the sequence time codes.
See this diagram for a
visual explanation.
If your FCP
sequence starts at 00:59:50:00 and the first caption is supposed to
appear at 01:00:01:00, the first caption time in MacCaption should
be 00:00:11:00, because the caption appears 11:00 seconds after the
first frame of the sequence. If you
incorrectly set the caption time code at 01:00:01:00 in MacCaption, the first caption will
not appear until 01:59:51:00!
The easiest way to work around this issue is
to make sure your proxy/reference movie (for time stamping) includes
the whole sequence from the very first frame (including any leaders
which are on the timeline), and that the Movie Time in
MacCaption/CaptionMaker is set to start at 00:00:00:00.
This will ensure that everything syncs
up both in MacCaption and in FCP.
Note that the FCP generated leader options in
the Edit to Tape/Print to Video dialog (such as FCP’s bars & tone,
countdown, etc.) DO NOT count towards the sequence time code.
The caption track will start when the actual
sequence starts to play. However,
a ny bars/leaders/etc.
which are in the sequence DO count towards the
sequence time code.
7.
My first caption was cut off or appears late.
Pop-on captions need a few seconds to pre-load the
data before the caption actually appears. If you have a caption
that starts very close to the start of the program or a cut point, the
data for that caption might get cut off and the caption won't appear.
See the "lowest limit" feature in the manual for more information.
The workaround is to either set the lowest limit, or make the first
caption in paint-on mode (which requires far less time to pre-load a
caption).
8.
Transcription issues: How to do it, options, speech recognition, etc.
There is no special trick to
transcription. It is by far the most time-consuming aspect of the
closed captioning/subtitling process. But, there are methods that
ensure that you are transcribing in the most efficient way possible.
Below are a few methods to transcribe a video.
Use a Video File
If you are not already doing so, make sure that you are using a video
file, and not videotape, as your video source. Trying to transcribe
from a tape can wear out your tape deck, and you’ll spend too much
time starting and stopping the tape.
USB Foot Pedal
A
very popular tool for transcribing is a USB Foot Pedal. The
VPedal is a tool that allows you
to control QuickTime, Windows Media Video, and a number of other types
of digital media. You can start, stop, rewind, and fast-forward your
digital video with your foot, while typing directly into your word processor. What
makes the foot pedal method so efficient is that you never have to
take your hands off the keyboard. Eventually, you’re able to get into
a rhythm with your hands and foot so that you are constantly typing.
Speech Recognition Software
At this time, there is no technology
that can accurately and reliably take a video or audio file and
automatically transcribe all of the text without human intervention.
Speech Recognition Software has advanced greatly in the
past few years, and has become a reliable transcription tool. The
transcription method using speech-recognition employs "shadow
speaking", whereby the user repeats what he or she hears in the video
into a microphone. Before you use any type of speech-recognition
software, such as
Dragon Naturally Speaking or
MacSpeech, you’ll need to train with the software. This usually
consists of reading stories provided by the software. After you’ve
read a story, the software analyzes your voice and compares it to the
text in the story. You’ll also need to practice the technique of
shadow speaking, which isn’t difficult but takes time to get good at.
Transcription Service
Often, it is more cost-effective to simply pay a service to
transcribe your material. There are many online services that
allow you to upload an .mp3 and they will provide you with a text
transcription within a day. Ideally, you should be able to find a
local individual whom you can trust for quick and accurate
transcription.
9.
How do I monitor my HD captions?
See this white paper for more
information about the difficulties of monitoring HD captions. Basically, you can't monitor HD captions via HDMI
or component outputs. The only baseband HD video that carries
closed captions is HD-SDI. Also, most devices (except for the
Matrox MXO2 and AJA FS-1) do not preserve the captions when
down-converting HD to SD. You need an HD-SDI device that can
decode HD (CEA-708) captions. Not all monitoring devices follow
the complete CEA-708 spec, so the captions may not always appear
exactly as intended.
10.
How do I down-convert HD video with captions to SD without
losing the captions?
Only a few hardware devices
(such as the Matrox MXO2 and the AJA FS-1) can preserve the closed
captioning when down/up-converting a video. For other devices,
you must use a separate workflow or separate output step to create
the SD video with closed captions. For example, if you have a
HD sequence in FCP, you can render this into a SD sequence and then
use the SD captioning workflow. Or, you can print to SD tape
(taking advantage of hardware down-convert), then capture SD back in
and caption it using the SD workflow.
See
the
AJA /
Blackmagic /
Matrox
workflow pages for more info.
11.
My Sony HD deck won't record HD video with closed
captions.
By default, most Sony HD decks are
factory set to not record VANC Line 9 where the HD closed captions are stored.
You must go into the deck setup or maintenance menu and look for the
"VANC Packet RX" setting. This should be set to: VANC Line 9,
DID 61, SDID 01. The exact menu depends on your deck. See
this page for
some of the settings we know, or please contact Sony for more information.
XDCAM EX (solid state) and HDV decks do not support closed captioning.
12.
My .CAP file is not working.
Several different kinds of
files have the same extension of .CAP. If the file isn't working
then you are probably trying to import or export the wrong type.
If you drag & drop the file into the text area, the software will
automatically determine the right file type to import.
If you need to export a
.cap but you don't know what kind, try to determine if the file is supposed to be a CaptionMaker project
file (.cap), Cheetah caption file (.cap), or NCI caption file (.cap).
There are some other rare .cap formats as well.
CaptionMaker .cap files are
opened/saved in CaptionMaker using the File > Open and Save commands, whereas the
other types are imported/exported using the File > Import and Export
commands.
MacCaption cannot open CaptionMaker .cap project
files, but it can open the other types of .cap files. To move
projects
between the two platforms, we recommend using the Ultech .ult
import/export for caption files, or the DVDSP .stl import/export for
subtitle files. So if you have a CaptionMaker .cap file, open
it in CaptionMaker (you can use your MacCaption dongle to run
CaptionMaker and vice versa), and then export the captions as a
Ultech .ult file to import into MacCaption.
13.
What's the easiest way to make a proxy movie for transcription or
captioning?
You can use QuickTime Pro, Windows Movie Maker,
or a number of free video utilities to save your video into a
compressed format which is faster to transfer online.
A good recommendation is:
QuickTime: Use "iPod" preset if available, or
320x240, H.264 codec
250kbps, AAC audio 128kbps
Windows Media: 320x240 250kbps
(broadband medium quality preset)
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Video Tutorials
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