Movies for YouTube with maximum quality
What people tend
to forget is that you are sending YouTube a master for them
to compress, therefore send the highest quality you can, that
fits with their limitations.
is well known for being the busiest video sharing site, but
unfortunately YouTube uses the much older Sorenson Sparke
codec for their video encoding. This was the "improved" video
format for Flash 7 but is based on the very old H.263 video
conferencing codec. Even when new this was an old, inefficient
people send YouTube an already compressed video, similar to
what you'd put on your website and are disappointed when they
see the quality that results on YouTube. That's because most
of the information was first thrown away by the encode before
upload, so there was little quality left to be encoded to
goal is to give YouTube a master that they can use for encoding.
have two limitations: no more than 10 minutes per video
and no larger than 100MB per video.
converts everything that is uploaded to Flash 7 video at 320
the good old days of VHS distribution? You wouldn't give the
duplicator a VHS copy of the show to duplicate. No, you'd
give them the highest quality master you could. Therefore,
to get the best quality from YouTube, give them a high quality
"master" that is close to 99MB.
any application that exports to .mp4 with H.264 video, including
QuickTime (Player) Pro; Final Cut Pro, Sony Vegas, et. al.
as MPEG-4 with H.264 and set the size to 320 x 240. There
is no point providing more resolution than YouTube's finished
size. By going direct to that size means that you can devote
bandwidth to making that master look great, instead of sending
excess size that will be scaled down. Bonus is that you
get to control de-interlacing and scaling.
here on there are two choices: calculate the maximum data
rate that will keep the file under 99MB or use some general
Purpose Settings - up to 6 minutes
simple way to ensure that the quality is there is to export
to MPEG-4 with:
video at 2000Kbits/sec (2Mbits/sec or 250KBytes/sec)
video size (deinterlaced or simply use one field)
audio with AAC at 64 Kbit/sec (or 128 Kbit/sec for stereo)
Sample Rate and
the Video Options Main Profile should be checked on and
Best Quality (Multi-pass) is advised for best quality.
settings will be fine up to 800 Mbits aka 100 MBytes. At the
proposed settings, any file shorter than 6 minutes and 15
seconds will be within YouTube's 100MB per upload limit.
your video is longer than that but still less than 10 minutes
then you're going to have to do some math to work out the
maximum data rate you can afford.
Calculating Data Rate 6 to 10 minutes
method requires you to know the duration of your video in
seconds. If it's less than 375 seconds (6 minutes 15
seconds), use the General Purpose settings above, if it's
more than 375 some calculation is required.
have 800 Mbits to work with (100 MBytes x 8 bits-per-Byte).
we divide that by the number of seconds to be encoded we
get our maximum bit rate per second.
deducting the 64Kbits/sec for mono audio or 128Kbits/sec
for stereo audio, the remainder is the maximum data rate
is the data rate for the video. Two pass will be important
consider an example. The video is 8 minutes long that's
divided by 480 seconds gives us 1,666,667Kbits/sec to keep
within the 100 MB upload limit.
128Kbits/sec for stereo audio (or use mono and subtract
only 64Kbits/sec) leaves 1538Kbits/sec for video.
in the Data Rate set 1500 kbits/sec instead of 2000.
If you want to see an example uploaded using this method,
click on the link below. This is a particularly difficult
source to encode - fast flashs, leaves, lots of motion and
yet, the quality is very high compared to the quality with
other YouTube videos.