Hi!
Unfortunately, Tom Sato's software does not fully comply with ITU-R
BT.1729. The big discrepancy is listed below:
** ZONE 12 MOVING BAR: Page 6 of the standard states that "Zone 12
contains a bar which moves horizontally from left to right and then
starts again from the left. This is used for checking audio-video
synchronization and to establish that the channel is active. The bar
travels horizontally across its zone in 1 s. The audio sync signal is
given when the bar passes the centreline." (Page 6 or PDF page 8) There
is more description to the zone 12 in the standard, but the above quote
is sufficient to show that Tom's bar does not conform. Zone 12 is the
second row from the bottom in the circle portion of the screen. (Page 3
or PDF page 5)
The ITU-R BT.1729 standard is at the address below.
http://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.1729-0-200504-I!!PDF-E.pdf
I like Tom's application because it works on Java enabled web browsers,
but Tom has no intention of fixing the Zone 12 moving bar. As a
result, I am not able to use his application. I note that there is also
nothing in the standard that allows use of a bouncing ball, but I like
the feature and one could argue that this might catch some problems
missed without it.
Does anyone have a software recommendation that fully implements the
ITU-R BT.1729 as is required for CISPR32 / EN55032 emissions testing?
Monrad
On 6/6/2014 1:08 PM, Ted Eckert wrote:
Here is the link to Tom Sato's site.
http://homepage3.nifty.com/tsato/scrolling-h/colorbar.html
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-----Original Message-----
From: Brian Oconnell [mailto:[email protected]]
Sent: Friday, June 6, 2014 12:02 PM
To: [email protected]
Subject: Re: [PSES] EN55032 and the Digital Television/Monitor Reference Test
Pattern of ITU-R BT.1729
Mr. Tom Sato has some of the bouncing ball stuff source published on his web
site.
And have seen other sites with 1729 stuff.
Brian
From: monrad monsen [mailto:[email protected]]
Sent: Friday, June 06, 2014 10:33 AM
To: [email protected]
Subject: [PSES] EN55032 and the Digital Television/Monitor Reference Test
Pattern of ITU-R BT.1729
Hi!
For EN55032:2012, stand alone monitors must be emissions tested with a "standard
television colour bar signal according to ITU-R BT 1729 with an additional small moving
element." This signal is defined in ITU-R BT.1729 which gives a digital television
reference test pattern. Does anyone have a source for a software routine that puts out
the reference test pattern?
Ideally, I would like the reference test pattern software with compiled
executable files to support testing with each of the major operating systems
like Windows, Solaris, and Linux.
Thanks.
Monrad Monsen
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