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-modulator-8230.html/236?gclid=CjwKCAiAirb_BRBNEiwALHlnD9a6jwk_heizZOEn5gUMPcNRAPngQIh3Owd1BNIgW6AL6F-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...
<https://thorbroadcast.com/product/1-4-or-8-hdmi-digital-rf-encoder-modulator-8230.html/236?gclid=CjwKCAiAirb_BRBNEiwALHlnD9a6jwk_heizZOEn5gUMPcNRAPngQIh3Owd1BNIgW6AL6F-6PQGo8xoCbaQQAvD_BwE>
Norm Kaiser - Manager of Business Development
*RIGHTNOWTV*
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
