First time vero 4k user having sound problems on some videos in twitch and youtube apps

[k2u3]

Thank’s a lot for looking into this. My old WD standalone player had no issues with playing any such files, but it was a much more simple player. Maybe its simplicity helped with playing back this confusing files

Here is a sample of a file I mention above.

General
Unique ID : 180606901930824698047001907492093787075 (0x87DF9FC2574C2BA1ADAC4BD7A0457BC3)
Complete name :
Format : Matroska
Format version : Version 4 / Version 2
File size : 958 MiB
Duration : 29 min 40 s
Overall bit rate : 4 511 kb/s
Encoded date : UTC 2017-04-03 03:35:23
Writing application : mkvmerge v9.6.0 (‘Slave To Your Mind’) 64bit
Writing library : libebml v1.3.4 + libmatroska v1.4.5

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 29 min 40 s
Bit rate mode : Constant
Nominal bit rate : 4 372 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 59.940 (60000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.079
Default : Yes
Forced : No

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : A_AAC
Duration : 29 min 40 s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 spf)
Compression mode : Lossy
Default : Yes
Forced : No

Text
ID : 3
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Language : English
Default : No
Forced : No

https://www.mediafire.com/?x1kvv9tfpmbmkn9

[sam_nazarko]

Thanks for the link.

Sam

[k2u3]

No problem ! Thanks for looking into it. I will provide more samples during the weekend when i have more time for this stuff

[k2u3]

Hi Sam !

I hope you have a nice weekend !

So I have looked for streams in wich the audio was broken at 1080p@60fps in the vero 4k using the twitch addon then i went to my pc and captured those streams using http://docs.livestreamer.io/ so i got the original stream capture. I then tried playing those files on the vero 4k to see if its an addon problem and i found out that the videos will have broken audio even if i play them from the HDD.

I made samples of this videos for you here.

Sample 1

General
ID : 1 (0x1)
Complete name : R:\samples\jowe.mkv
Format : MPEG-TS
File size : 123 MiB
Duration : 6 min 15 s
Overall bit rate mode : Variable
Overall bit rate : 2 747 kb/s
FileExtension_Invalid : ts m2t m2s m4t m4s tmf ts tp trp ty

Video
ID : 257 (0x101)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.2
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : 27
Duration : 6 min 16 s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate : 48.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive

Audio
ID : 256 (0x100)
Menu ID : 1 (0x1)
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Muxing mode : ADTS
Codec ID : 15
Duration : 6 min 15 s
Bit rate mode : Variable
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 spf)
Compression mode : Lossy

Menu
ID : 4096 (0x1000)
Menu ID : 1 (0x1)
Duration : 6 min 15 s
List : 256 (0x100) (AAC) / 257 (0x101) (AVC) / 258 (0x102) ()

http://www.mediafire.com/file/75z4u8rd9e79kpb/sample1.mkv

Sample 2

General
ID : 1 (0x1)
Complete name : R:\samples\pit.mkv
Format : MPEG-TS
File size : 176 MiB
Duration : 5 min 43 s
Overall bit rate mode : Variable
Overall bit rate : 4 284 kb/s
FileExtension_Invalid : ts m2t m2s m4t m4s tmf ts tp trp ty

Video
ID : 257 (0x101)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.2
Format settings, CABAC : Yes
Format settings, ReFrames : 2 frames
Format settings, GOP : M=3, N=120
Codec ID : 27
Duration : 5 min 44 s
Bit rate mode : Constant
Nominal bit rate : 4 000 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate : 60.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.072
Color range : Limited
Matrix coefficients : BT.601

Audio
ID : 256 (0x100)
Menu ID : 1 (0x1)
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Muxing mode : ADTS
Codec ID : 15
Duration : 5 min 43 s
Bit rate mode : Variable
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 spf)
Compression mode : Lossy
Delay relative to video : 9 ms

Menu
ID : 4096 (0x1000)
Menu ID : 1 (0x1)
Duration : 5 min 43 s
List : 256 (0x100) (AAC) / 257 (0x101) (AVC) / 258 (0x102) ()

http://www.mediafire.com/file/ofz36gcfvv7fbil/sample2.mkv

Sample 3

General
ID : 1 (0x1)
Complete name : R:\samples\nugi.mkv
Format : MPEG-TS
File size : 163 MiB
Duration : 6 min 59 s
Overall bit rate mode : Variable
Overall bit rate : 3 254 kb/s
FileExtension_Invalid : ts m2t m2s m4t m4s tmf ts tp trp ty

Video
ID : 257 (0x101)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : 27
Duration : 6 min 59 s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate : 30.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive

Audio
ID : 256 (0x100)
Menu ID : 1 (0x1)
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Muxing mode : ADTS
Codec ID : 15
Duration : 6 min 59 s
Bit rate mode : Variable
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 spf)
Compression mode : Lossy
Delay relative to video : 6 ms

Menu
ID : 4096 (0x1000)
Menu ID : 1 (0x1)
Duration : 6 min 59 s
List : 256 (0x100) (AAC) / 257 (0x101) (AVC) / 258 (0x102) ()

http://www.mediafire.com/file/4kxx8ace6kc6sxy/sample3.mkv

Sample 4

General
ID : 1 (0x1)
Complete name : R:\samples\benny.mkv
Format : MPEG-TS
File size : 199 MiB
Duration : 7 min 30 s
Overall bit rate mode : Variable
Overall bit rate : 3 711 kb/s
FileExtension_Invalid : ts m2t m2s m4t m4s tmf ts tp trp ty

Video
ID : 257 (0x101)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Format settings, GOP : M=4, N=60
Codec ID : 27
Duration : 7 min 30 s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 30.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Color range : Limited
Color primaries : BT.709
Transfer characteristics : sYCC
Matrix coefficients : BT.709

Audio
ID : 256 (0x100)
Menu ID : 1 (0x1)
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Muxing mode : ADTS
Codec ID : 15
Duration : 7 min 30 s
Bit rate mode : Variable
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 spf)
Compression mode : Lossy

Menu
ID : 4096 (0x1000)
Menu ID : 1 (0x1)
Duration : 7 min 30 s
List : 256 (0x100) (AAC) / 257 (0x101) (AVC) / 258 (0x102) ()

http://www.mediafire.com/file/4hrh2q83nfb94wc/sample4.mkv

Hope it helps !

[k2u3]

One more example of a youtube video that has broken audio on my 4k if played back from the addon or the HDD

General
Unique ID : 175356163406072440416783340268100273718 (0x83EC5E5CCF3FD12DAB8761456FE04636)
Complete name : R:\cheese-youtube.sample.mkv
Format : Matroska
Format version : Version 4 / Version 2
File size : 25.7 MiB
Duration : 2 min 8 s
Overall bit rate : 1 675 kb/s
Encoded date : UTC 2017-04-10 21:29:19
Writing application : mkvmerge v8.8.0 (‘Wind at my back’) 64bit
Writing library : libebml v1.3.3 + libmatroska v1.4.4

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 2 min 8 s
Bit rate : 1 547 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.067
Stream size : 23.7 MiB (92%)
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : A_AAC
Duration : 2 min 8 s
Bit rate : 126 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 spf)
Compression mode : Lossy
Delay relative to video : 12 ms
Stream size : 1.93 MiB (7%)
Default : Yes
Forced : No

https://www.mediafire.com/?c7m2a4u6f875as9

[sam_nazarko]

Again, audio and video are out of sync by very nature (look at the MediaInfo)

ffmpeg (software decoding) is likely to be a better job at decoding this. Try disabling amcodec in System -> Settings and let me know how playback is. Remember to re-enable it for demanding content.

I can hack around it (and will in the next update), but this seems out of spec to me.

[k2u3]

@sam_nazarko

Again, audio and video are out of sync by very nature (look at the MediaInfo)

I know i saw it but it seams that this days there is a lot of user generated content on the internet that comes with this strange anomaly so a hack as you call it would be greatly appreciated at least from my side ( cant wait for next update )

Im currently not with my vero so i will try your suggestion tomorrow and report back

I decidet to get the 4k because i wanted to get an all in one multimedia device that will allow me to watch HD content and the best format and replace my need for a chromecast. So if you manage to get the “wierd” videos working that will be just great for me

Thanks again for all the support !

[k2u3]

@sam_nazarko

ffmpeg (software decoding) is likely to be a better job at decoding this. Try disabling amcodec in System -> Settings and let me know how playback is

In sistem Settings ? Im a bit lost ? Where do I find amcodec ? The only codecs I find are under settings add on browser my add ons-> audio Decoders and Audio Encoders but none says amcodec in Audio Encoders I have

-AAC encoder enabled and I can’t find the option to disable it
-Flac Audio Encoder enabled but I can disable it
–Lame MP3 Audio Encoder enabled but I can disable it
-Vorbis Audio Encoder Enabled but I can disable it
-wav Audio Encoder disabled but I can enable it
-WMA Encoder enabled and i can’t find the option to disable it

I’m on location with the device at the moment and will be here for the next 5-6 hours so if you could answer in that time that would be great!

[sam_nazarko]

It’s under System -> Settings -> Playback if I recall correctly. Make sure settings are on ‘Expert’. It’s called ‘Accelerate h264’, ‘Accelerate MPEG2’ etc. Try disable it for H264 and play the clip. Remember to re-enable afterwards (this is just a test)

[k2u3]

Thx it was under settings-> player-> video I made what you said and restarted the device sadly the sound is still broken in those videos in question

I have played the samples that I sent you back from the hdd in case it matters

[k2u3]

Just bumping this so Sam won’t forget about me Not in a big rush but I hope maybe a solution is in sight?

[sam_nazarko]

I’m still looking at this.

Cheers

Sam

[k2u3]

Thanks Sam !

[k2u3]

Installed the April update, sadly the issues didn’t go away

[k2u3]

Found one more video with broken audio if played back over the vero 4k. Same problem as the other ones i posted

General
Unique ID : 172765184916674484557594465063580570324 (0x81F95D429FEBE5CCACA3555F7F2D92D4)
Complete name :
Format : Matroska
Format version : Version 4 / Version 2
File size : 1.67 GiB
Duration : 4 h 39 min
Overall bit rate : 857 kb/s
Encoded date : UTC 2017-05-01 20:10:46
Writing application : mkvmerge v8.2.0 (‘World of Adventure’) 64bit
Writing library : libebml v1.3.1 + libmatroska v1.4.2

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 4 h 39 min
Bit rate : 727 kb/s
Width : 1 024 pixels
Height : 576 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.041
Stream size : 1.42 GiB (85%)
Writing library : x264 core 148
Encoding settings : cabac=1 / ref=1 / deblock=1:-1:-1 / analyse=0x1:0x111 / me=hex / subme=2 / psy=1 / psy_rd=1.00:0.15 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=18 / lookahead_threads=4 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=90 / keyint_min=9 / scenecut=40 / intra_refresh=0 / rc_lookahead=10 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=4 / qpmax=69 / qpstep=4 / vbv_maxrate=3872 / vbv_bufsize=4259 / crf_max=0.0 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Default : Yes
Forced : No

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : A_AAC
Duration : 4 h 39 min
Bit rate : 128 kb/s
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 kHz
Frame rate : 43.066 FPS (1024 spf)
Compression mode : Lossy
Delay relative to video : -46 ms
Stream size : 256 MiB (15%)
Default : Yes
Forced : No

[sam_nazarko]

@k2u3

Frame rate : 43.066 FPS (1024 spf)

Is this the same source as the Twitch videos?
That seems a very strange encode.

Is it only AAC content giving you problems?

[k2u3]

Its a so called webrip yes but not from twitch i can make you a sample if you’d like. Looking at the media info logs of stuff that didn’t play properly I previously posted they all have in common that Audio has a different frame rate then video and yes they seam all to be AAC

[sam_nazarko]

Yes – a sample would help

Cheers

Sam

[k2u3]

https://www.mediafire.com/?bq0lubmo5y8bfaw

There you go !

[k2u3]

Any progress on this by any chance?