Another thought is if it is a SD dot 2 channel, just leave it composite
and pass closed caption. The only advantage to SDI in SD is it gets rid of
"dot crawl" around edges and only one coax. But if you are going to go
through a bunch of converter boxes, the advantages are gone.
If you want to see affects of composite versus HDMI to SDI, record a
multiburst pattern and play it back.
Rick Goetz
R & L Media Systems
(615) 826-0792
rickg@xxxxxxxxxxxxxxxxxx
From: lptv-bounce@xxxxxxxxxxxxx [mailto:lptv-bounce@xxxxxxxxxxxxx] On Behalf
Of Jon C. Moon
Sent: Friday, January 1, 2021 3:07 PM
To: lptv@xxxxxxxxxxxxx
Subject: [lptv] Re: Digital to Analog to Digital
Not sure why this is a problem. If you're airing a subnet like RightNow TV,
you should be doing ad insertion to monetize the channel - otherwise, what's
the point of airing it? So one of the cheapest ways to do that is use
MasterPlay with SDI in / out card. MasterPlay can do your ad insertion AND
your EAS crawl. And this is going to be kept in in HD. You us a $45
converter to convert RightNow TV's internet receiver output from HDMI to
HD-SDI and you're good to go. No CC, but RightNow TV has already stated
that they don't send out CC.
Jon C. Moon
Ridgeline TV Channel 99
706-897-0872
www.ridgelinetv.net <http://www.ridgelinetv.net/>
On Dec 31, 2020, at 9:59 PM, Dan Peek <Dan.Peek@xxxxxxxx> wrote:
For all the afore mentioned reasons plus the fact that sadly HDMI doesn't
pass closed captions. So just converting it to SDI leaves it without
embedded closed captions that the consumer TV can decode or not decode.
Some HDMI encoders take composite on the side for closed caption embedding.
Sometimes HDMI from consumer devices won't talk directly to encoders.
Usually an HDMI splitter remove the copyright stuff and solve that problem.
Dan
On Thu, Dec 31, 2020, 1:46 PM Norm Kaiser <dmarc-noreply@xxxxxxxxxxxxx>
wrote:
Hi Craig!
Thanks for the reply.
We do provide either a BlackMagic HDMI to SDI converter or composite
converter to our affiliates...but it just seems like such a crying shame to
take a clean digital output, convert it to analog, only to convert it back
again.
Would a device like the one below solve the issue?
Econonical HDMI HDCP modulator QAM ATSC DVB-T ISDB-T
<https://thorbroadcast.com/product/1-4-or-8-hdmi-digital-rf-encoder-modulato
r-8230.html/236?gclid=CjwKCAiAirb_BRBNEiwALHlnD9a6jwk_heizZOEn5gUMPcNRAPngQI
h3Owd1BNIgW6AL6F-6PQGo8xoCbaQQAvD_BwE>
Econonical HDMI HDCP modulator QAM ATSC DVB-T ISDB-T
1 to 8 HDMI Digital RF Modulator with Closed Captioning is an all in one
device integrating MPEG2 encoding and m...
Norm Kaiser - Manager of Business Development
RIGHTNOWTV
http://www.RightNowTelevision.com ;<http://www.rightnowtelevision.com/>
norm.kaiser@xxxxxxxxxxxxxx
On Thursday, December 31, 2020, 12:44:27 PM CST, craigf199
<dmarc-noreply@xxxxxxxxxxxxx> wrote:
Norm,
Two reasons: Most broadcast encoders need an SDI signal via a BNC
connection as that would normally embed video, audio and CC. However, most
of everyone's EAS encoders still need a composite signal in which the signal
feeds through the EAS unit to overlay the video/audio EAS tones and messages
if it's the primary program for the station.
And yes, to answer your last question, most folks do not have direct HDMI
encoders as that isn't a broadcast standard configuration.
For your programming, anyone needing or wanting SDI would need an HDMI to
SDI converter like a BlackMagic Design HDMI to SDI Mini Converter. For HDMI
to analog, there are a number of very inexpensive (approx. $35) models from
Radio Shack or Parts Express, RCA, etc.
Craig Fox
WTVU/WIXT
Syracuse, NY
_____________________________________________________________
-----Original Message-----
From: Norm Kaiser <dmarc-noreply@xxxxxxxxxxxxx>
To: lptv@xxxxxxxxxxxxx <lptv@xxxxxxxxxxxxx>
Sent: Thu, Dec 31, 2020 12:52 pm
Subject: [lptv] Digital to Analog to Digital
Hi folks!
I was hoping everyone could help me understand some LPTV basics.
I've been partner now in a diginet for over two years. One thing I'm not
understanding is the fact that almost all of our affiliate stations, when we
go to ship them our playback device, almost all of them request a composite
output.
Composite is analog.
The output of the playout device is digital HDMI.
The broadcast standard is digital.
So aren't the affiliates taking a digital output, converting it to analog,
then converting it back to digital again?
Why is this done? Is it because many folks don't have HDMI encoders?
Thanks!
Norm
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