[SBE16-Seattle] FW: [EAS-WA] FCC reminder about Accessible Emergency Alerts
K7CR
k7cr at blarg.net
Wed Jul 17 20:42:20 PDT 2019
In the event you missed it - Clay
From: EAS-WA [mailto:eas-wa-bounces at sea.sbe16.org] On Behalf Of K7CR via
EAS-WA
Sent: Wednesday, July 17, 2019 6:20 PM
To: EAS Washington State
Subject: [EAS-WA] FCC reminder about Accessible Emergency Alerts
I am forwarding this to the EAS-Wa Remailer as it applies to
All Licensed EAS Participants.
If you are not involved with the technical operation of EAS at
Your facility - Please forward this to those that are.
Thanks
Clay Freinwald
-----Original Message-----
From: EAS [mailto:eas-bounces at radiolists.net] On Behalf Of Sean Donelan
Sent: Wednesday, July 17, 2019 1:14 PM
To: The EAS Forum
Subject: [EAS] FCC reminder about Accessible Emergency Alerts
The FCC issued a Public Notice reminding video providers to issue
accessible emergency alerts. However, the issue is not limited to video
providers.
https://www.fcc.gov/document/fcc-reminds-video-providers-issue-accessible-em
ergency-alerts
Although framed as an accessibility issue, there are several problems that
radio, tv and cable systems regularly have with EAS messages.
1. Timing issues- Cutting off the beginning or ending EAS data bursts.
With all-digital studios, radio and TV broadcasters no longer have the EAS
equipment in-line. Instead, digital switches are used. The switching
isn't instaneous, and EAS equipment may need a 1 to 3 second delay to
prevent cutting off the starting or ending data bursts.
2. Ducking and multi-channel audio. The EAS message must replace *ALL*
audio channels, not just duck the program audio. Sometimes with 5.1 audio,
the EAS message is heard only on the center or left/right channels while
the original program audio continues on the other 5.1 audio channels. Or
EAS replaces only the stereo mix but not the 5.1 mix.
Ideally, the digital mux has an emergency audio input which will replace
the 5.1/stereo program audio with the mono emergency message and set the
correct audio transport bits.
For radio, make sure the EAS message is on both the left and right stereo
or mono channels. I've heard some radio stations with EAS on the left
channel and program audio on the right channel at the same time.
Cable is more complicated, but same idea.
3. Video text crawls or slides. The entire text message must be visible
from the beginning to the end at least once. Ensure the video crawl
doesn't terminate early for short audio messages. Choose fonts, colors and
crawl speed which are readable.
Because this National Periodic Test won't use IPAWS, only the default FCC
header text will be available.
__________________________________________________________
The EAS Forum Discussion List is hosted by the BWWG (Broadcast Warning
Working Group). The Core members of the BWWG are Adrienne Abbott, Clay
Freinwald, Suzanne Goucher, Barry Mishkind, David Ostmo, Darryl Parker,
Richard Rudman, Gary Timm, and Sharon Tinsley. http://eas.radiolists.net
Please invite your friends to join our Forum! The sign up is at:
https://lists.radiolists.net/mailman/listinfo/eas
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