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Download "Как качественно оцифровать видеокассеты дома"

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Оцифровка
Видеокассет
Дома
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  • ruRussian
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00:00:00
Greetings to lovers of audio-video
00:00:02
equipment,
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my name is Evgeniy, I am a professional
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video editor and cameraman in the mid-
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80s, I was interested in
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video equipment, today I want to help you
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figure out how to digitize your videotapes with high quality, without extra effort and
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most importantly without unnecessary financial costs,
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even for
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money. There are these types of cassettes:
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betacam
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and all its variants are unlikely to
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come across anywhere our ordinary cells also
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come in a higher quality version of
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super substances, they are practically no
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different except for certain
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holes for sensors also the type of cassette
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1 contact everything is the same but in a smaller
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body which good
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special adapters
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need to be installed, a large
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social video recorder, so the tape is
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suitable, you can use it on a
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video recorder, there are also video cassettes in the
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8 x 8 video format, of
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lesser quality, they differ
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only in the tape itself and, again, the hole
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for sensors, well, there are also digital
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formats digital 8 that work on
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such same mini devi cassettes,
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I'm a maiden who actually are not
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digitized, they are simply rewritten, by
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and large, well, there are less, there are large
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neighbors, such, such, great, it is unlikely that
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you will ever come across such ones,
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let's look at two options for
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digitizing the same video and then
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see the difference Between these options, the
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first stage is the choice of a
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VCR and in the first option
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we will do as usual, that is, we take the
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first VCR we come across,
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for example this one, and the second option I will not
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burden you with
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different models, much less generalize
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that this company has a good one or
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cotton wool at the microphone bad
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here it is important to understand that there are thousands of devices
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if we take two of them, most likely
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they will differ in
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picture quality; on some the color will be
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more stable, there will be no flickering, the
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brightness will be more correctly balanced, the gamma will be more correctly
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distributed, the picture will also be
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different, somewhere the picture will be more
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natural the detail will be higher, and on the
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contrary, there will be fewer artifacts in the form of some false
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contours if
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you have recordings in slow motion lpi mode
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or
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recordings with a stereo track, hi-
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fi quality annotation in the form of tape recorders that
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can, accordingly, reproduce all this
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using additional
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video heads 6 heads are rated and the devices
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have an additional 2 heads for lp and
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two heads for stereo sound, already of
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high quality accuracy, we don’t
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see litas and can work in either a
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noticeable lp mode or understand
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high-fi stereo tracks, but the number of
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video heads has
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nothing to do with the image quality,
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this is something to understand, therefore, in the second
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option, we will carefully approach the choice of
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a video recorder,
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we will take several of you relatives and
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friends or we will buy them; they look like they cost
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a penny now, then they can be
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sold for the same money and we will choose the one
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that will give a better image
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on the same recording section,
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if we have only a longitudinal
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monophonic audio track is 90
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percent of all recordings,
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I also adjusted the winter of the sound
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head for a specific recording, for this
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the screw is spinning, I’ll hide it from the head, we
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need to achieve a change in the inclination
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relative to its tape and this
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needs to be done in pure Odessa from the device, that
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is, not through the device digitization
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because there is always
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some kind of buffer there and the delay will not allow us to
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conveniently and efficiently position this
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head. Also in the form of a tape recorder there is
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such a correction as tracking, they are
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usually always automatic, sometimes it
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requires correction because if you
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see that the picture is twitching a little,
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then you can shift
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gives these video heads relative to the
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actual track, the recording can be done
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so that the picture becomes stable and
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stops jumping because the
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encoding device sometimes reacts poorly to
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displacement
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the correct choice of the VCR and all the
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correction settings are necessary this is the
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first stage 2
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we need to decide how we will
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encode
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again the vast majority people
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who, again, make money from this, they
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use these things, these are like
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television tuners capable of
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capturing a video signal
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or a specialized device for
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digitization, like this, they cost one thousand and
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a half, I don’t know, in the first version we
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will have an exhibition using
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these devices again I won’t
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burden you with special high-
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quality professional video capture cards, we do
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n’t need that now,
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instead of all this, I suggest
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using a
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mini devi video camera or your
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motto with a pass-through channel that
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is capable of receiving an analog signal
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at the output and producing a digital jpeg format
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with a large stream of about 30 megabits, that
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is the quality will be excellent, these
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cameras on Avito also cost
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about 1000 rubles, but not
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every one has a through channel, you need to
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find out separately whether it can
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record, not only play back
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two cameras, now I’ll show you
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these here, we have not only an
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output input like on the site is specially designed
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so that the camera itself has all this,
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and the camera may not even be working; the
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mechanism itself may not work; you
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just need it to turn on and
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carry out encoding; this
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will also be a qualitative leap, especially since
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many of these devices don’t even
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understand what they are the interface they simply
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combine progressive at 25 frames per
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second and we lose naturalness,
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everything turns out like a movie,
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and now we move on to the third
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stage, this is processing, that is, we took from the
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left we simply captured using the
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usual we see for the background and this
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thing the signal in the right window will be a signal
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when we have chosen, we see who the background
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was digitized using a video camera and everything
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was set up and processed a little, that
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is, what we did with this video, the sound by the way
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will also be the left channel, this will
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refer to the left picture, the right channel
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to the right, we changed a little here
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parameter that stopped, that is, we
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slightly corrected the picture from the
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state of
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0, we slightly changed the
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brightness level, that is, our dark was not
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completely black, we needed to bring the
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black level to zero and at the same time
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avoid overexposure because many
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videos are shot in a slightly different
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range, creating they are not are combined with
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TV broadcasts and movies and we
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get this kind of
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unpleasant re-light on the clouds, which
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in fact is not even on the recording to
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some extent, that is, it can be
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shifted and compensated and get
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better quality and if we look I
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Now I’ll display this image on the full
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screen and you’ll see that in the first
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case we have a
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color solution and instability of the
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picture and overexposure and the
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colors are not correct along the length of the bones,
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the detailing is a little worse, you
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can also add to the detailing and here such a moment
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on the VCR from the detailing
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works over a fairly large radius,
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such false contours can appear and are
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unpleasant, but
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usually you should insert it somewhere in the middle
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position in the Adobe Premiere program,
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for example, there the detailing works
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much more subtly and enhances
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small details, but in this case I
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even turned it off and didn’t I used it
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because the detail is already higher than in the first
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version, as if naturalness is more important here, you
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also need to understand that many, for
00:10:54
example, the program before the premiere, if you
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captured hour 23 there, you will most likely
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have a
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discrepancy in the synchronization of the sound, it
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can run away in three hours by 2 seconds and
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this needs to be corrected and
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corrected smoothly by shifting that
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we set, for example, we separate the video from the sound
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and change the speed in time, shifting and
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so that it fits exactly and the tobacco of
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the program is not cured in any way,
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now I will then show you an example on the left and
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right, the difference seems to me to be very it is
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clearly visible
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to wait
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[music]
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that
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allowing
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[music]

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Как качественно оцифровать видеокассеты дома

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