Originally Posted by cisco1982
I just bought RZ900. Everything is fine but this one:
- Onkyo reciever (rz900)
- 5.1 speaker setup (without any additional speaker - high or rear)
- Media player and BD player - both connected with HDMI and bitstream audio output.
When I played Dolby Atmos soundtrack with the configuration 5.1 speaker setup (I choose this in onkyo's menu) I get the following on screen display:
7.1 ch B
When I set my speaker setup to 6.1 or 7.1 in the reciever menu - nothing else - I get dolby atmos working very well (both input and output said Dolby Atmos and the little blue light on on the reciever etc), but when I changed the speaker settings back to 5.1 I only get Dolby TrueHD sound. So i guess this is a software bug, and it is very big dissapointment for me, that I cannot enjoy my new hardware as I should be.
Of course I updated the reciever firmware with the newest one, but nothing changed.
Please confirm, that with 5.1 speaker setup, Dolby Atmos should work as with 6.1 for example.
Thank you for your help!
1. Read through the entire manual. it is extremely helpful with regards to atmos.
2. from the manual:
Audio output of connected players
To enjoy digital surround sound including Dolby
Digital and DTS, audio output should be set to
"Bitstream output" on the connected Blu-ray Disc
Player or other device. Depending on the settings
on the Blu-ray Disc Player there may be cases when
Dolby TrueHD, Dolby Atmos, and DTS-HD Master
Audio audio is not output according to the format of
the source. In this case, in the Blu-ray Disc Player
settings try setting "BD video supplementary sound"
(or secondary sound) to "Off". Change the listening
mode after changing the setting to confirm.
So that might be an issue for you in some cases.
3. from page 57 of the manual:
Input Format Listening Mode
●● The listening mode of Dolby Digital Plus or Dolby TrueHD can be selected if back speakers or height speakers are not connected.
So perhaps that happens somewhat automatically when you are in with the 5.1 mode.
4. more from the manual:
The number of channels is not displayed when the input
signal is "Dolby Atmos" format.
5. if you have only 5.1 speakers, dolby atmos doesn't even do anything for you. It's possible that when you set it to 6.1 or 7.1, that the software thinks you MIGHT be able to pull off atmos because the additional 1 or 2 speakers might be used as height speakers.
So do you have a 5.1 setup or something else?