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Thread: Issue with audio over HDMI

  1. #1

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    Issue with audio over HDMI

    I have my 8500 receiver connected to Yamaha AV amp over HDMI which then forwards HDMI to the screen.

    Whenever I turn everything on there is no sound, switching off and back on either the receiver or AV amp makes no difference. Tried in another HDMI port and a new cable and no difference.

    The only thing I found to fix was to go into the audio settings and change AC3 from 'passthrough' to 'downmix' suddenly the audio comes back. Even if I exit the menu without saving the audio stays working fine until the receiver is switched off again.

    Sent from my SM-G960F using Tapatalk

  2. #2
    Andy_Hazza's Avatar
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    Thats correct, set to downmix and save.


    Sent from my iPhone using Tapatalk
    Vu+ Ultimo 4K with 3TB HDD, Dual FBC (Sat) tuners, 1x Twin Hybrid DVB-C/T/T2 tuner
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    Fixed 28.2E Technomate 65cm Mesh Satellite Dish with Inverto Unicable II/JESS LNB and Inverto Unicable Splitter
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    (All receivers installed with the latest Dev build)

  3. #3

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    What if I want to provide surround to my receiver?

    Downmix will provide only 2ch

    Sent from my SM-G960F using Tapatalk

  4. #4
    Andy_Hazza's Avatar
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    Could be a driver related issue as I have my SF8008 going through an Onkyo Amp and works without issues, so I’m veering more towards a driver related issue and if its with the Xtrend I wouldn’t think you would get any updates for that as it’s a different company etc now.


    Sent from my iPhone using Tapatalk
    Vu+ Ultimo 4K with 3TB HDD, Dual FBC (Sat) tuners, 1x Twin Hybrid DVB-C/T/T2 tuner
    Vu+ Solo 4K with 1TB HDD, Dual FBC (Sat) tuners, 1x Hybrid DVB-C/T/T2 tuner
    Vu+ Solo 2 with 1TB HDD 'White Edition', 2x DVB-S2 tuners
    Mut@nt HD2400 with 1TB HDD, 4x DVB-S2 tuners
    Fixed 28.2E Technomate 65cm Mesh Satellite Dish with Inverto Unicable II/JESS LNB and Inverto Unicable Splitter
    Fixed 28.2E Sky Zone 1 45cm Satellite Dish with Octo LNB
    (All receivers installed with the latest Dev build)

  5. #5
    Andy_Hazza's Avatar
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    Have you tried HDMI from receiver straight to your your TV and tried an Optical cable and select AUX channel etc?


    Sent from my iPhone using Tapatalk
    Vu+ Ultimo 4K with 3TB HDD, Dual FBC (Sat) tuners, 1x Twin Hybrid DVB-C/T/T2 tuner
    Vu+ Solo 4K with 1TB HDD, Dual FBC (Sat) tuners, 1x Hybrid DVB-C/T/T2 tuner
    Vu+ Solo 2 with 1TB HDD 'White Edition', 2x DVB-S2 tuners
    Mut@nt HD2400 with 1TB HDD, 4x DVB-S2 tuners
    Fixed 28.2E Technomate 65cm Mesh Satellite Dish with Inverto Unicable II/JESS LNB and Inverto Unicable Splitter
    Fixed 28.2E Sky Zone 1 45cm Satellite Dish with Octo LNB
    (All receivers installed with the latest Dev build)

  6. #6

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    Haven't tried that, TV is a projector and goes along a 10m HDMI cable to the other side of the room so would be tricky.

    Don't have any issue with playstation, fire TV etc. It's not a huge problem just a little annoying, I'll see if I can find an optical cable and match it to the hdmi input

    Sent from my SM-G960F using Tapatalk

  7. #7
    twol's Avatar
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    I always ran my old ET8500's through Onkyo amps and AC3 worked perfectly.
    Try Andy's suggestion and if it works then you know the issue.
    How many ports has the amp? - I would also try a different hdmi cable into the amp and a different amp input port if possible.
    Gigablue Quad 4K & UE 4K
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    ------------------> GT-Sat unicable LNB to 1.5M dish(28.2E)
    ------------------> Gigablue unicable LNB to 80 cm dish(19.2E)
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    Zgemma H9 C/S into Giga4K

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    Andy_Hazza (17-07-19)

  9. #8

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    I have tried another cable and another HDMI input with no difference

    Amp has 7 HDMI inputs.

    1 thing I notice is that if I turn the amp on first then the sat receiver after a few seconds then it works, turning the receiver on first followed by the amp then it has no audio

    Sent from my SM-G960F using Tapatalk

  10. #9
    twol's Avatar
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    How old is the Yamaha?
    Gigablue Quad 4K & UE 4K
    .........FBC Tuners:
    ------------------> GT-Sat unicable LNB to 1.5M dish(28.2E)
    ------------------> Gigablue unicable LNB to 80 cm dish(19.2E)
    .......................
    Vu+ Uno4KSE, Dreambox dm900
    AX HD61, Edision Osmio 4K+, Zgemma H9Combo, Octagon SF8008 , gbtrio4k, h9se using unicable ports
    Zgemma H9 C/S into Giga4K

  11. #10

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    Not sure as I bought it 2nd hand I'd imagine about 5-6 years.

    It's an RX-A810

    Sent from my SM-G960F using Tapatalk

  12. #11

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    It possibly is HDMI-CEC issues. A sony bluray player caused me no end of problems with my onkyo amp until I got rid of it. All you need is one problem device in the system to screw the lot up. For the audio switching to work automatically you probably need to make sure HDMI-CEC is enabled on all devices.
    Zgemma H7S running OpenVIX 6.2, Darkmotor, Triax TD110 dish, Inverto Black Ultra dual lnb
    LG 50UM7450 4K TV, Pioneer VSX-534 Atmos AVR , Panasonic UB820 region free 4K Bluray & a PS4.

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