We are going to talk about the ARC, Audio Return Chanel via HDMI
Usually, home amplifiers have these HDMI "Inputs"
and some HDMI outputs for TV
but those carrie Audio and video (among other control signals) in the same cable to the amplifier.
But TV sets usually only have HDMI INPUTS, not outputs.
to get audio out of the TV we have analog RCA or SPDIF (coax or optic) outputs.
but what we are looking to achieve here is to get audio output to the home amplifier via TV's HDMI
turn that "Input" into an "Output" in order to send digital audio to the amplifier.
and control the both equipments audio via the TV's remote control.
that means that you are going to control the volumen in the amplifier with the TV's control and viceversa.
as you can see, adjusting the volume in the amplifier controls the volumen in the TV.
That volume bar you see in the TV corresponds to the TV and not to the Amp.
The amplifier video output is not connected to the TV at the moment.
we only have the HDMI TV's input (with ARC) connected to the HDMI Input of the amp.
look how the audio level can be controlled from the Amp's remote control.
so, let's connect the AR, first of all, your TV has to be ARC capable.
in this TV, only the first HDMI input is ARC capable.
and we are going to connect it to an amplifier capable of recieving audio via HDMI.
This amp has also an HDMI output but we are not going to use it.
we are going to use a normal HDMI input.
We could send audio via fiber optic
but one of the advantages of using ARC is that you can control your Amp's audio from your TV control.
that means that you disable the TV's internal speaker and give that function to the external device
and turning of that external device the TV automatically turns it internal speaker on.
for this tutorial, we are going to use the VCR input in the amplifier.
again, the TV must have the ability to control other devices or to send audio via HDMI input
reading the vendor's instructions look for the Setting menu.. then system, then "Control other devices"
if you select "Search for CEC devices it won't find anything
because my amplifier is not CEC enable and also is off.
even that we are going to enable the HDMI ARC and System audio control.
so we can send audio trough the HDMI input.
enabling the system audio control so it can turn off the internal speakers
when ever the external amplifier is on and turn then back on when when ever we shut down the amplifier.
now turn off the TV..
and let's connect the cable as planes, from the HDMI port ARC
to the HDMI VCR input on the amplifier
and set the correct source in the amp to VCR and select the correct audio input
every video input in this amp have different option of audio input.
this input has analog, coax and digital
we are going to use the digital one.
once selected..
if you check in the TV's screen..
you will see how if I pump up the volume in the amplifier's knob it will show in the TV.
what you are hearing now is the speakers in the home theater
see how it changes when I turn the knob in the amplifier.
Bu using the TV's remote control..
it also increases the volume in the amplifier.
that display in the screen is from the TV and not the amplifier.
remember that the amplifier's video output is not connected to the TV.
look how the amplifier's remote can control the volume in the TV.
Hope you find this useful, thanks.