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  1. I recently installed Potplayer v1.6.62949 and noticed that some files have their audio absent. I cycled through the audio codecs installed in Potplayer: Built-in FFmpeg, System MFT, OpenCodecUnity64(libFAAD2), OpenCodecUnity64(FDK), FFmpeg64.dll, but none of them fixed the audio. The audio works fine in VLC player and Media Player Classic so there doesn't seem to be a problem with the files. Here is the file and playback information for two files that have no audio:

    File 1
    General
    Complete name : C:\Users\Int\Desktop\File A022.mp4
    Format : MPEG-4
    Format profile : Base Media
    Codec ID : isom (isom/iso2/avc1/mp41)
    File size : 433 MiB
    Duration : 23 min
    Overall bit rate mode : Variable
    Overall bit rate : 2 534 kb/s

    Video
    ID : 2
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : Baseline@L3.1
    Format settings, CABAC : No
    Format settings, ReFrames : 3 frames
    Format settings, GOP : M=1, N=89
    Codec ID : avc1
    Codec ID/Info : Advanced Video Coding
    Duration : 23 min
    Duration_FirstFrame : 33 ms
    Bit rate : 2 400 kb/s
    Width : 1 280 pixels
    Height : 720 pixels
    Display aspect ratio : 16:9
    Frame rate mode : Constant
    Frame rate : 29.970 (30000/1001) FPS
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.087
    Stream size : 410 MiB (95%)
    Writing library : x264 core 148
    Encoding settings : cabac=0 / ref=3 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=22 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=0 / weightp=0 / keyint=89 / keyint_min=8 / scenecut=0 / intra_refresh=0 / rc_lookahead=40 / rc=abr / mbtree=1 / bitrate=2400 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
    Color range : Limited
    Color primaries : BT.709
    Transfer characteristics : BT.709
    Matrix coefficients : BT.709
    mdhd_Duration : 1433732

    Audio
    ID : 1
    Format : AAC
    Format/Info : Advanced Audio Codec
    Codec ID : 40
    Duration : 23 min
    Bit rate mode : Variable
    Bit rate : 128 kb/s
    Channel(s) : 2 channels
    Sampling rate : 44.1 kHz
    Frame rate : 43.066 FPS (1024 spf)
    Compression mode : Lossy
    Stream size : 21.9 MiB (5%)

    Click image for larger version

Name:	File 1 info.png
Views:	1065
Size:	33.5 KB
ID:	38787


    File 2
    General
    Complete name : C:\Users\Int\Desktop\File B845.mp4
    Format : MPEG-4
    Format profile : Base Media
    Codec ID : isom (isom/iso2/avc1/mp41)
    File size : 530 MiB
    Duration : 29 min
    Overall bit rate mode : Variable
    Overall bit rate : 2 536 kb/s

    Video
    ID : 2
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : Baseline@L3.1
    Format settings, CABAC : No
    Format settings, ReFrames : 3 frames
    Format settings, GOP : M=1, N=89
    Codec ID : avc1
    Codec ID/Info : Advanced Video Coding
    Duration : 29 min
    Duration_FirstFrame : 33 ms
    Bit rate : 2 400 kb/s
    Width : 1 280 pixels
    Height : 720 pixels
    Display aspect ratio : 16:9
    Frame rate mode : Constant
    Frame rate : 29.970 (30000/1001) FPS
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.087
    Stream size : 502 MiB (95%)
    Writing library : x264 core 148
    Encoding settings : cabac=0 / ref=3 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=22 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=0 / weightp=0 / keyint=89 / keyint_min=8 / scenecut=0 / intra_refresh=0 / rc_lookahead=40 / rc=abr / mbtree=1 / bitrate=2400 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
    Color range : Limited
    Color primaries : BT.709
    Transfer characteristics : BT.709
    Matrix coefficients : BT.709
    mdhd_Duration : 1754152

    Audio
    ID : 1
    Format : AAC
    Format/Info : Advanced Audio Codec
    Codec ID : 40
    Duration : 29 min
    Bit rate mode : Variable
    Bit rate : 128 kb/s
    Channel(s) : 2 channels
    Sampling rate : 44.1 kHz
    Frame rate : 43.066 FPS (1024 spf)
    Compression mode : Lossy
    Stream size : 26.8 MiB (5%)
    mdhd_Duration : 1754221


    Click image for larger version

Name:	File 2 info.png
Views:	1046
Size:	39.7 KB
ID:	38788

    Any suggestions would be greatly appreciated.
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  2. Member
    Join Date
    Jun 2012
    Location
    Gurupi
    Search Comp PM
    Tried to change the splitter for mp4?
    Quote Quote  
  3. Originally Posted by Havokdan View Post
    Tried to change the splitter for mp4?
    Just did and now the audio works fine. Thanks!
    Quote Quote  



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