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Answered Yamaha RX-V781 Atmos problem

Sarahdeep

Novice Member
Hi guys,

How you doing, hope you are all well.

So after struggling with the tablet, I´ve decided to buy an Apple TV 4k that comes with Dolby Atmos, but after setting up everything, and making sure the Apple TV is sending Dolby Atmos to the Yamaha RV I still get the PCM sign when I press the info button :\

This is becoming something personal between me and this receiver sent directly from hell... what should I do to get the same display as you guys get "Dolby Atmos" help much appreciated, thanks again <3

PS: is there a way to get the Yamaha to wake up at a certain time with lets say Jazz Music on internet radio? can´t find the wake up mode anywhere only sleep mode... thanks!
 

stewjoy

Well-known Member
Hi Sarah,
Give yamaha support a ring they are very helpful, failing that pm me and i’lI try and help.
 

Sarahdeep

Novice Member
Hello again guys,

So, still at the same point, now I have the Yamaha receiver connected to the Apple 4K TV, but still no sign of Dolby Atmos in the receiver... quite frustrating... any ideas? thanks.
 

dante01

Distinguished Member
Hello again guys,

So, still at the same point, now I have the Yamaha receiver connected to the Apple 4K TV, but still no sign of Dolby Atmos in the receiver... quite frustrating... any ideas? thanks.
Ensure that you follow the guidancw as given by Apple as to the settings that need setting onboard the Apple TV if wanting Atmos:


Note that the Apple TV outputs Atmos along with multichannel PCM using Dolby MAT and doesn't Bitstream DD+.

[QUOTE
Dolby Atmos in Dolby MAT
The Dolby Metadata-enhanced Audio Transmission (Dolby MAT) encoder resides in a Blu-ray player to pack the variable bit-rate Dolby TrueHD bitstreams for transmission over the fixed bit-rate HDMI connections. A MAT decoder is subsequently employed in an AVR to unpack the Dolby TrueHD bitstreams. With the introduction of Dolby Atmos, we have expanded this technology to support encoding of Dolby Atmos content as lossless pulse-code modulation (PCM) audio.

A key benefit of Dolby MAT 2.0 is that Dolby Atmos object-based audio can be live encoded and transmitted from a source device with limited latency and processing complexity. Among the possible sources are broadcast set-top boxes, PCs, and game consoles. The Dolby MAT 2.0 decoder in an AVR outputs the object-based audio and its metadata for further processing. The Dolby MAT 2.0 container is scalable and leverages the full potential of the HDMI audio pipeline.
][/QUOTE]
 

Sarahdeep

Novice Member
I have followed every single step both in the Apple TV 4k and in the yamaha receiver, Dobly Atmos its activated in the apple tv 4k but in the receiver it display SUR. DECODE, totally blocked with this... thanks guys
IMG_4091.JPG
IMG_5618.JPG
 

dante01

Distinguished Member
Press STRAIGHT on the receiver's remote. As said, the Apple TV will output PCM even if conveying Atmos to your receiver. You'll get PCM with the inclusion of Atmos metadata.

What speaker configuration and layout do you have? Are you sure that the content you are playing includes an Atmos soundtrack? Remember that you'd only get Atmos via Netflix is subscribed to its top tier UHD subscru=iption.

Go into the receiver's ON SCREEN menus and down into INFORMATION. Use the AUDIO entry here to determine exactly what the source is outputting to the AV receiver. If possible, post an image of the INFORMATION AUDIO screen.
 

Dunners

Active Member
Press the straight button on your remote control.

Next up, are you sure the speaker configuration on the AVR is correct?
Can you show us a screenshot of what you're set to currently?
 

dms

Active Member
This reminded me that my Yamaha 3070 didn't show the input signal but always surround decode, enhanced or some such I was interested in. I always preferred my older model's display in that regard where it was clear what was being played (important for films which don't default to the best track, i.e. The Matrix I just put in now).

As someone mentioned here for my receiver to show the input source I had to press the "info" button on the remote repeatedly until it showed what I was after. Specifically I pressed it, saw what was shown on the screen as the type of info and then waited for a moment so it reverted to showing the info. Perhaps give that ago? I know it was mentioned before but clicking info once didn't do it for me.
 

dante01

Distinguished Member
2 types of information can be conveyed via the disp;ay:
DSP PROGRAM
AUDIO DECODER

You'd need the AUDIO DECODER option if wanting the type of Audio format coming into the receiver to be shown. Note that this will also indicate any additional SURRROUND DECODER upmixing as well as the aforementioned format.

You can cycle between the front display options using the INFO button on the receiver itself or on the receiver's remote.



This is on more recent and current Yamaha models, but the manner in which you change what is being displayed and the information you get is the same on earlier models. The only real difference with the older models is that they also include a third INPUT option. The newer models indicate the source/input regardless of which of the 2 other options are in use.
 

The Lost Boys

Novice Member
I am fairly certain I know why she, and others that are also here looking for the answer— is not receiving Dolby Atmos. This forum, and every other forum— are incredibly helpful. However, there is a massive overuse of technical jargon & in order for a resolution to work, it has to make sense.

I fully believe that her audio is set to PCM within her source. When I say source, I mean: The Blu Ray Player, the 4K Apple TV, the 4K fire stick, etc— NOT the “receiver.” The individual electronic device you have that is likely connected to your receiver.

You need to go to the settings menu of that individual device ~~> go to audio/settings ~~> change the default from PCM to Bitstream. I have mine set as Bitstream uncompressed, but choose Bitstream. Nobody comes right out & tells anyone this, which is a huge miss in Atmos awareness— but Atmos requires Bitstream & if you use the “default” of PCM, it will ruin everything.

That is all.
 

dante01

Distinguished Member
THe Apple TV use Dolby MAT to deal witth Atmos ans as such conveys Atmos via PCM:

Dolby Atmos in Dolby MAT
The Dolby Metadata-enhanced Audio Transmission (Dolby MAT) encoder resides in a Blu-ray player to pack the variable bit-rate Dolby TrueHD bitstreams for transmission over the fixed bit-rate HDMI connections. A MAT decoder is subsequently employed in an AVR to unpack the Dolby TrueHD bitstreams. With the introduction of Dolby Atmos, we have expanded this technology to support encoding of Dolby Atmos content as lossless pulse-code modulation (PCM) audio.

A key benefit of Dolby MAT 2.0 is that Dolby Atmos object-based audio can be live encoded and transmitted from a source device with limited latency and processing complexity. Among the possible sources are broadcast set-top boxes, PCs, and game consoles. The Dolby MAT 2.0 decoder in an AVR outputs the object-based audio and its metadata for further processing. The Dolby MAT 2.0 container is scalable and leverages the full potential of the HDMI audio pipeline.
You can find details of how to configure the Apple TV's settings to correctly output Atmos here:



It is repeatedly indicated throughout this forum (and others) that source devices must ordinarilly be configured to BITSTREAM audio via HDMI or via ARC in order for Atmos metadata to be conveyed to an AV receiver.
 
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dante01

Distinguished Member
I am fairly certain I know why she, and others that are also here looking for the answer— is not receiving Dolby Atmos. This forum, and every other forum— are incredibly helpful. However, there is a massive overuse of technical jargon & in order for a resolution to work, it has to make sense.

I fully believe that her audio is set to PCM within her source. When I say source, I mean: The Blu Ray Player, the 4K Apple TV, the 4K fire stick, etc— NOT the “receiver.” The individual electronic device you have that is likely connected to your receiver.

You need to go to the settings menu of that individual device ~~> go to audio/settings ~~> change the default from PCM to Bitstream. I have mine set as Bitstream uncompressed, but choose Bitstream. Nobody comes right out & tells anyone this, which is a huge miss in Atmos awareness— but Atmos requires Bitstream & if you use the “default” of PCM, it will ruin everything.

That is all.


Over simplifying things is all well and good, but how would your instructions help those with an Apple TV or those whose issue with not getting Atmos not having anything to do with the HDMI audio output settings on their sources? AS I indicated, the Apple TV does actually stream Atmos metadata in conjuncrion with PCM data.


Most of those oferfing advice here are already aware of the need to BITSTREAM audio if wanting to convey Atmos metadata. They are also informed and well versed in other aspects of various configurations that you appear not to be as well informed about?
 
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