No audio on 9GAG.com

MerolaC

Hello all!

I am having audio issues on 9GAG.com:
For example, these videos:

https://9gag.com/gag/a5Ex28V
Doesn't have sound

But this one does:
https://9gag.com/gag/a4Exq7m

This doesn't happen on Chrome and Edge
If I download the first video to my PC the sound works.

It started to happen like 2 updates ago. Some videos have sound and some others don't. I have to download them to listen to them.

Thanks in advance.

pauloaguia

@merolac To me the video initially plays with no sound but if I click on it, the sound starts playing.
If that is not your case, what version of Vivaldi are you using? I think there were some issues with sounds in some videos in one of the most recent snapshots...

DoctorG

The video is https://img-9gag-fun.9cache.com/photo/a5Ex28V_460svav1.mp4 is the video and does not has audio on Windows 10 Pro x64 21H1.

Catweazle

@doctorg , for me it has sound, Win10 21H1 , Vivaldi last stable (??)

MerolaC

@pauloaguia

I am on 4.0.2312.38 (Stable channel) Windows 10 21H1 19043.1083
Yes, all the videos are on mute if you don't click them.

Anything else I can provide to help on this issue?

seanF

I am experiencing the same issue on tiktok.com.
None of the videos have sound.
Been happening only sometime in the last month, so not sure which snapshot is causing it. Sound on other sites like youtube are ok.

4.1.2345.3 (Official Build) (64-bit)

DoctorG

@catweazle I have 4.0.2312.38 Win 10 x64 Pro (10.0.19043.1083) 21H1 and no sound in MP4.

DoctorG

@seanf Known issue as written at https://vivaldi.com/blog/desktop/reader-and-tabs-improvements-vivaldi-browser-snapshot-2345-3/

Catweazle

@doctorg , sound driver, extension, settings? No problems here in W Home versión, sys specs in my signature.

MerolaC

Ok, so, the video that the sounds work, has this audio info.

Audio
ID : 2
Format : Opus
Codec ID : A_OPUS
Duration : 1 min 34 s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Bit depth : 32 bits
Compression mode : Lossy
Writing library : Lavc58.91.100 libopus
Default : Yes
Forced : No

The one that doens't

ID : 2
Format : Opus
Codec ID : Opus
Duration : 26 s 982 ms
Bit rate mode : Variable
Bit rate : 61.4 kb/s
Compression mode : Lossy
Stream size : 202 KiB (11%)
Default : Yes
Alternate group : 1

MP4 vs Webm and A_OPUS vs Opus

DoctorG

@MerolaC I reported the issue to Vivaldi bug tracker as VB-81392 "MP4 has no sound at 9Gag"

MerolaC

@doctorg Thank you very much!

DoctorG

Audio fails in Vivaldi 4.1.2349.18 + 4.0.2312.38
and works in Vivaldi 4.1.2345.3
Win 10 x64 Pro (10.0.19043.1083) 21H1

Works in Firefox 89, Edge 91, Opera 77, Chromium 91.

@catweazle Does only play in 4.1 Snapshot.

DoctorG

@merolac You found the bug. This deserves a

DoctorG

@merolac My ffprobe (part of FFmpeg) shows:

[libdav1d @ 000001987b6199c0] libdav1d 0.8.2-2-g6c6d25d
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://img-9gag-fun.9cache.com/photo/a5Ex28V_460svav1.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf58.45.100
  Duration: 00:00:26.98, start: 0.000000, bitrate: 550 kb/s
  Stream #0:0(und): Video: av1 (Main) (av01 / 0x31307661), yuv420p(tv, progressive), 460x816 [SAR 1:1 DAR 115:204], 483 kb/s, 30 fps, 30 tbr, 15360 tbn, 15360 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      vendor_id       : [0][0][0][0]
  Stream #0:1(und): Audio: opus (Opus / 0x7375704F), 48000 Hz, stereo, fltp, 61 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      vendor_id       : [0][0][0][0]
[libdav1d @ 000001987bbff800] libdav1d 0.8.2-2-g6c6d25d

DoctorG

Fro me the 9Gag video with broken sound is a Windows-only issue. Linux plays nice.

Pesala

@merolac The videos do have sound, but it is muted. Click the icon to unmute it.

Muted Video.png

MerolaC

@pesala
I know about that.
Been always like this. They are on mute unless you click them.
It's not the issue here.

Video demonstration.

https://www.youtube.com/watch?v=b1RVo0tlsus

DoctorG

This post is deleted!

DoctorG

@catweazle No extension installed or settings changed. I always test with a dirty and a fresh profile.