Replies – Forums – Dorel Iordache

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Dorel Iordache
March 29, 2007 at 4:46 pm in reply to: Remove air conditioning background noise from interview audio

Hi Willie,
Thanks for the reply! That
Dorel Iordache
November 26, 2006 at 11:05 pm in reply to: Seeking advice for Educational/academic documentary

[tony salgado] “You are going to need to obtain production insurance if you intend to sell it to any broadcast outlet.

Can you elaborate on this issue ? If the doc is already made without network funding, can
Dorel Iordache
November 25, 2006 at 8:39 pm in reply to: Used Sony PVM-1354Q problem

Thanks for the input Glenn!

[glenn chan] “Calibration info (this calibrates the interface; it does not calibrate other aspects of the monitor):
” target=”_blank”>https://videouniversity.com/tvbars2.htm

That
Dorel Iordache
November 17, 2006 at 6:55 pm in reply to: Non-interlaced MPEG2-DVD encoding and luminance levels

Yes, the 601 standard unambiguously defines the nominal luminance range in 8 bit encoding as 16-235 to allow for signal processing footroom and headroom. My understanding is this was done because both the luminance and croma (nominal 16-240) signals can occasionally excurse outside the nominal range due to analog video processing and noise. I found that the progressive mode specified by the 601 standard to be no exception to this rule!
Now, the DVD player has to translate the digital encoding into proper voltage when outputting via analog connections and in NTSC land we have to deal with the stone-age quagmire of 7.5 IRE setup!

I also read that many DVD players actually always output 0 IRE via component and 7.5 IRE (NTSC) with composite and Y/C. Some give the choice. My LCD is hooked up via component; I have to re-check the settings. Further more, the brightness of the display has to be calibrated to the proper input level. If I switch from 7.5 IRE composite input to 0IRE component input, I would have to adjust the brightness to make up for the different luminance floor level.
To complicate things, DVD and TV sets manufactures chose to implement in different ways the luminance mapping from digital to analog!

Frippy, thanks for the input! And by the way, the forum link you gave me is all in Russian !
Dorel Iordache
November 16, 2006 at 5:56 pm in reply to: Non-interlaced MPEG2-DVD encoding and luminance levels

Thanks for the reply Frippy.
I also did a very basic test with a generated psd file half black (0) and half white(255) that I encoded with both the progressive and interlaced high quality CBR presets.

Now, I
Dorel Iordache
August 14, 2006 at 4:39 pm in reply to: Lighting for stop motion animation

Thanks, John! I found a local distributor and I
Dorel Iordache
August 11, 2006 at 5:34 pm in reply to: reencoding video captured from DVD

Well, google told me that 352 x 480 is Half-D1, a.k.a China Video Disc and apparently is a better format to use with DVD players than its very close relative, the SVCD
https://en.wikipedia.org/wiki/China_Video_Disc
But anyway, my source is so low quality to start with and since Encore
Dorel Iordache
August 11, 2006 at 5:20 pm in reply to: COW Tutorials: After Effects Creating an Oscillating Wave Form: Part 2

Well, that
Dorel Iordache
August 11, 2006 at 5:20 pm in reply to: COW Tutorials: After Effects Creating an Oscillating Wave Form: Part 2

Well, that
Dorel Iordache
August 10, 2006 at 6:01 pm in reply to: COW Tutorials: After Effects Creating an Oscillating Wave Form: Part 2

Actually only one of the methods computes a straight average. Even the straight moving average could be useful sometimes, depends on the responsiveness you

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