Lossy DD audio not working on z9x 8k. Losless works and is stable

Discussion in 'HDD 8K Media player(AML S928X)' started by Budtz, Mar 4, 2026.

  1. Budtz

    Budtz New Member

    Hello ppl. I wonder if any1 can help.

    I have a bug where lossless sound plays just fine from my rips. but lossy 5.1 or 5.1 plus sometimes there is no audio. if i rewind or stop and start the movie the sound somtimes comes back. Again have run it for many hours and lossless is 100percent stable.

    box is set to raw and connected to a denon x3800h with a certified cable. I have had a shield since 2019 where this was not a problem. also fine on apple tv
     
  2. Markswift2003

    Markswift2003 Well-Known Member SUPER Administrator Zidoo Beta Tester Contributor

    Couple of things - set the audio on the Zidoo to Auto to make sure the EDID is honoured. RAW outputs a bitstream regardless of what the EDID says, so can cause issues.

    And set the audio input on the Denon to HDMI and not Auto. Auto can sometimes get confused on Denons - I've never seen an issue with AC3 or AC3+ though.

    (Also moved to correct forum)
     
  3. Budtz

    Budtz New Member

    Et seemed to have worked to set it to auto. im guessing as long as it corectley sends the lossless formats trough - that setting it to auto does not affect audio quality negativeley right? The denon was already set to hdmi. thx.
     
  4. blenky

    blenky Well-Known Member

    I've had this issue with lossy formats for ages - through several firmwares. It either loose sound right at start or after a pause. Fix is to pause and start. I'm beginning to think its a incompatibility between my Zidoo and my Denon. I also have a random HDMI resyncs - again maybe a Zidoo\Denon issue.
     
  5. Markswift2003

    Markswift2003 Well-Known Member SUPER Administrator Zidoo Beta Tester Contributor

    No, that setting does not affect audio quality in any way, Auto simply only allows codecs advertised in the EDID whereas RAW lets anything through regardless of the EDID.

    Do you use Audio RAW or Auto?
     
  6. blenky

    blenky Well-Known Member

    Auto
     
  7. Markswift2003

    Markswift2003 Well-Known Member SUPER Administrator Zidoo Beta Tester Contributor

    Bang goes that idea then...
     
  8. Budtz

    Budtz New Member

    Update: It did not fix the problem. And the behaviour I get is excactly the same as Blenky. no resyncs thou. dolby true hd and dts hd are rock solid. No issues with any other decices. shield apple tv ect.
     
  9. Markswift2003

    Markswift2003 Well-Known Member SUPER Administrator Zidoo Beta Tester Contributor

    Not a clue I'm afraid - interesting you have the same model Denon as @blenky - it'd be interesting to hear from other users of the same model.

    I've always used Denon - I have a 7200 in my test kit and an 8500 in the cinema - both have no problem with lossy audio, whether AC3, AC3+, AC3+ with Atmos or DTS.
     

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