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<DIV>Dear Info-CHILDES,</DIV>
<DIV> </DIV>
<DIV>I plan to digitize my VHS video tapes on child speech and I do
not </DIV>
<DIV>know what hardware and software equipment I need, and what format
should we use for this. PC Pentium 3 and 4 computers are available to us, but we
are<BR>not sure about other hardware and software details: RAM, MHz,
operative<BR>system, video and sound perfomances. Also what format and
compression<BR>should be chosen in digitizing and so on.</DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV>We made few trials in<BR>DivX MPEG 4 - 3000kb/s (for video) and<BR>DivX MP3
- 128kb/s, 48khz, mono (for sound)<BR>but had problem with synchronicity of
video and sound. It happened with some<BR>tapes that asynchronicity appeared at
some points, and then accumulated<BR>towards the end of the tape, so that it
became so big that we cannot work<BR>with such material.<BR><BR>Another trial
was with MPEG format (I understood it was MPEG1) and<BR>asynchronicity did not
apear, but while playing it happened at some points<BR>that picture would freeze
for a moment or even about 10-15 seconds. Sound<BR>would go on, but the the
picture would stay for a while. Also the quality of<BR>the picture was not as
good as on the original tape (it may become important<BR>at some points where a
child is holding or playing with small objects, or<BR>pointing to some small
picture in a book and we need to know exactly what<BR>was that). </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV>
<DIV>I understand DVD is a kind of standard for this job, but the price of DVD
disks is much higher then ordinary CD. This is an important issue in
my country (especialy with a large quantitity of material), and we are trying to
make it less expensive but not japardizing the quality.</DIV></DIV>
<DIV>Is there anybody who could help?
<DIV>(keep in mind that I work with PC, not Mac).</DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV></DIV>
<DIV>I would like to hear about DVD and other formats as well.</DIV>
<DIV><BR>Thanks in advance and warm regards,<BR><BR>Darinka Andjelkovic</DIV>
<DIV><A href="mailto:dandjelk@f.bg.ac.yu">dandjelk@f.bg.ac.yu</A><BR>Laboratory
for Experimental Psychology<BR>Faculty of Philosophy<BR>University of
Belgrade</DIV>
<DIV>Cika Ljubina 18-20</DIV>
<DIV>11000 Belgrade</DIV>
<DIV>Serbia and Montenegro<BR></DIV></BODY></HTML>