OSSC and Denon Receivers

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  • #22015
    jam128
    Participant

    I apologize if this has been brought up before, but I have a weird issue with the OSSC and my Denon AVR-4300H receiver. It will pass through every OSSC setting I send to it except for 480i passthru. After seeing people mention screen burn-in with bob interlacing I disabled 4x mode for 480i content and it will play sound through the receiver but I get a black screen. If I plug the OSSC directly into my TV it’s fine so the problem is definitely with the receiver. It’s worth noting that 480i will work if I set the output to DVI mode, but then of course I get no sound. I’m curious if anyone else has had a similar issue and found a way to resolve it. I’m using an OSSC 1.6 with the .78 firmware.

    #22017
    NoAffinity
    Participant

    .81 firmware might help.

    Another thought: why take the OSSC output through the Denon? It seems there’s potential for the AVR to add input delay and possibly other side effects. Why not take the OSSC directly to the TV and take an audio out from the TV to the AVR? Possibly a solution with more than one benefit.

    #22018
    jam128
    Participant

    I use the receiver for a few reasons. Mostly, I’m lazy and this means I never have to change the TV input 🙂 Also because I like the sound coming through the speakers and because I use its dual output to run video to the TV and a capture card at the same time. I appreciate the advice on the firmware. I’ll give it a try and report back.

    #22019
    jam128
    Participant

    No luck with the .81 firmware. Same issue.

    #22020
    NoAffinity
    Participant

    ^^Fair enough. I figured there was more to it. 🙂

    #22039
    jam128
    Participant

    So I found that playing with the H. Sample Rate made the picture come in. It defaults to 858 but it will work in the range of 839-855 and 861-877. I can’t explain how it fixed the issue, but it did. I had random video dropouts but I’ve set it to 847 and that seems to be stable so far.

    #22350
    powdermonkey
    Participant

    Denon here too. 480i/576i outputs a really weird kind of shuffled image when using passthrough but bobx2 is fine.

    #22351
    nmalinoski
    Participant

    That shuffled image might be the receiver interpreting the interlaced signal as progressive. You might need to either line double/deinterlace to 480p or better before hitting your receiver or bypass the receiver altogether.

    #22355
    jam128
    Participant

    When I use bob 2x the colors are wrong. 4x works for me, but I’m reluctant to use bob interlacing because I’m afraid to burn images into my screen. Changing the horizontal sample rate seems to work, but I can’t explain why.

    #27765
    marqs
    Participant

    Compatibility with Denon AVRs is improved in firmware 0.84.

    #27767
    jam128
    Participant

    Thank you for the update!!!

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