No sound on old videos

Discussion in 'HDD Media player(RTD 1619DR)' started by badbeef, Nov 23, 2022.

  1. badbeef

    badbeef New Member

    Hi,it started about 3 updates ago,i get no audio with older video.What i found is that videos with a sampling rate of 24 kHz and below i get no audio,everything above that seems to be ok.Is there a setting i haven seen to fix this or is this a software issue?
     
  2. Netmask

    Netmask Well-Known Member

    Post a Mediainfo file report https://mediaarea.net/en/MediaInfo/Download on a typical file (tree text format) to have a good look. You may have to resample the audio, plenty of software available to do that.
     
  3. badbeef

    badbeef New Member

    I did resample the audio with avidemux
     

    Attached Files:

  4. Netmask

    Netmask Well-Known Member

    I believe this is your problem - you would be better off remuxing with AC3. Zidoo certainly handles AAC but not sure about low complexity files and especially a sample rate of 22.05kHz. I remember having to do this for a series of old off air recordings that had aac tracks and I used Avidemux to remux the audio to stock standard AC3

    Code:
    Audio
    ID                                       : 2
    Format                                   : AAC LC
    Format/Info                              : Advanced Audio Codec Low Complexity
    Codec ID                                 : mp4a-40-2
    Duration                                 : 15 min 1 s
    Source duration                          : 15 min 1 s
    Bit rate mode                            : Constant
    Bit rate                                 : 161 kb/s
    Channel(s)                               : 2 channels
    Channel layout                           : L R
    Sampling rate                            : 22.05 kHz
    Frame rate                               : 21.533 FPS (1024 SPF)
    Compression mode                         : Lossy
    Stream size                              : 17.3 MiB (15%)
    Source stream size                       : 17.3 MiB (15%)
    Title                                    : Stereo
    Language                                 : English
    Default                                  : Yes
    Alternate group                          : 1
    Encoded date                             : UTC 2022-11-21 23:00:17
    Tagged date                              : UTC 2022-11-21 23:00:17
    mdhd_Duration                            : 901074
    
     
  5. Phil181

    Phil181 Active Member

    If it is an AAC codec problem (for a DVD rip), it could be your AVR/Soundbar settings or audio out put settings in the Zidoo.
    Are you passing bitstream audio from the Zidoo via HDMI or are you using the optical output? Can your AVR/Soundbar decode AAC correctly?
     
  6. badbeef

    badbeef New Member

    Zidoo directly to tv via HDMI,no soundbar.
     
  7. Markswift2003

    Markswift2003 Well-Known Member SUPER Administrator Beta test group Contributor

    I can confirm this issue - if I mux in a 22.05KHz AAC file there is no audio, if I up the sample rate to 32KHz, it plays fine.

    If play the 22.05KHz file on a Dune it plays fine.

    Can you confirm which FW version worked?
     
  8. badbeef

    badbeef New Member

    It was working on the stable FW,but when i started to put the betas it stop working,
     
  9. Markswift2003

    Markswift2003 Well-Known Member SUPER Administrator Beta test group Contributor

  10. badbeef

    badbeef New Member

    v6.3.75
     
  11. Markswift2003

    Markswift2003 Well-Known Member SUPER Administrator Beta test group Contributor

    A known issue apparently and should be fixed next firmware.
     

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