How important is ARC or EARC ? - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 2Likes
  • 2 Post By Worf
 
Thread Tools
post #1 of 9 Old 12-19-2019, 12:06 AM - Thread Starter
AVS Forum Special Member
 
Jim McC's Avatar
 
Join Date: Feb 2004
Location: Oconomowoc, WI.
Posts: 6,550
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 503 Post(s)
Liked: 134
How important is ARC or EARC ?

I'm looking to buy a 4k receiver and TV, and was wondering how important those features are ? I don't think there are any TVs with EArc yet though, correct ?

Thanks.
Jim McC is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 12-19-2019, 12:41 AM
AVS Forum Special Member
 
Worf's Avatar
 
Join Date: Sep 2000
Posts: 2,351
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 871 Post(s)
Liked: 599
There are TVs that support eARC already.

The question of how important it is depends on the sources. If you plan on using the tv apps or OTA tuner, you kinda sorta need it to get audio from the tv to the receiver. There are alternatives including arc and optical that will work as well.

If you plan on connecting everything to the tv including Blu Ray players and such rather than through the receiver, eARC is mandatory.

If you plan on connecting everything to the receiver hen to the tv, including things like streaming boxes, arc is unnecessary. Note that eARC is new and everything that supports it supports he 4k formats as well.
Alan P and Soulburner like this.
Worf is offline  
post #3 of 9 Old 12-19-2019, 01:31 AM - Thread Starter
AVS Forum Special Member
 
Jim McC's Avatar
 
Join Date: Feb 2004
Location: Oconomowoc, WI.
Posts: 6,550
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 503 Post(s)
Liked: 134
Thanks. I will be using the TV's tuner with our antenna. And there will have a Blu-ray player and HD-DVD player hooked up. So I can either stream through the Blu-ray player or the TV's apps.

Since I will be using the TV's tuner, I MUST use ARC ? It's either ARC or digital optical to receiver ?
Jim McC is offline  
Sponsored Links
Advertisement
 
post #4 of 9 Old 12-19-2019, 11:55 PM
AVS Forum Special Member
 
Worf's Avatar
 
Join Date: Sep 2000
Posts: 2,351
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 871 Post(s)
Liked: 599
Yes, you need to use either arc or optical to send audio from the tv to the receiver. If you watch tv without the receiver (using the TV's speakers instead), then it's optional. But you probably want to do it anyways in case you want to watch tv and have the audio sent to the receiver for the times you want surround sound.

Note I said arc or optical as either is sufficient for the audio formats you'll see with OTA tv (namely Dolby digital). EARC is necessary only if you want the HD codecs you might find with Blu-Ray or UHD Blu-Ray and somehow don't want to connect your player through the receiver and connect it via the tv instead.

Basically the optical port or arc/eARC is to send audio from the tv to the receiver - which can happen if you use the TV's tuner or apps that generate sound within the tv. Or if you connect HDMI devices direct to the tv, which sends audio to the tv. That audio will need to use arc/eARC/optical to get sent from the tv to the receiver.

However, if you use HDMI from the source to the receiver then to the tv, the receiver gets the audio from the source directly and arc/eARC/optical is not needed.
Worf is offline  
post #5 of 9 Old 12-20-2019, 01:09 AM - Thread Starter
AVS Forum Special Member
 
Jim McC's Avatar
 
Join Date: Feb 2004
Location: Oconomowoc, WI.
Posts: 6,550
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 503 Post(s)
Liked: 134
Thanks Worf
Jim McC is offline  
post #6 of 9 Old 12-20-2019, 08:04 AM
Senior Member
 
oldtexasdog's Avatar
 
Join Date: Dec 2008
Location: out in the country north of Fort Worth Texas
Posts: 288
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 22 Post(s)
Liked: 13
Quote:
Originally Posted by Jim McC View Post
Thanks Worf
I believe that you need to keep in mind that if you use the optical you will not get Atmos if that is important. You need to use the HDMI.

There are two holes in Daddys head where all the money goes.
oldtexasdog is offline  
post #7 of 9 Old 12-20-2019, 09:15 PM - Thread Starter
AVS Forum Special Member
 
Jim McC's Avatar
 
Join Date: Feb 2004
Location: Oconomowoc, WI.
Posts: 6,550
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 503 Post(s)
Liked: 134
Quote:
Originally Posted by oldtexasdog View Post
I believe that you need to keep in mind that if you use the optical you will not get Atmos if that is important. You need to use the HDMI.
Right. Thanks.
Jim McC is offline  
post #8 of 9 Old 01-10-2020, 06:50 AM
Newbie
 
Join Date: Jan 2020
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 0
If you think you will need to output lossless audio like TrueHD from the TV then you will need eARC. ARC and optical will not support it.
Neutron_Star is offline  
post #9 of 9 Old 01-10-2020, 01:21 PM - Thread Starter
AVS Forum Special Member
 
Jim McC's Avatar
 
Join Date: Feb 2004
Location: Oconomowoc, WI.
Posts: 6,550
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 503 Post(s)
Liked: 134
Thanks
Jim McC is offline  
Sponsored Links
Advertisement
 
Reply Audio Theory, Setup, and Chat

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off