VLC not playing audio

Microsoft Windows specific usage questions
Forum rules
Please post only Windows specific questions in this forum category. If you don't know where to post, please read the different forums' rules. Thanks.
cubelov
New Cone
New Cone
Posts: 2
Joined: 14 Dec 2023 14:31

VLC not playing audio

Postby cubelov » 14 Dec 2023 14:35

Downloaded videos from former "Twitter" (X) have no sound when viewed using VLC.

User avatar
InTheWings
Developer
Developer
Posts: 1275
Joined: 07 Aug 2013 13:15
VLC version: crashing
Operating System: Linux
Contact:

Re: VLC not playing audio

Postby InTheWings » 14 Dec 2023 15:08

To help you, we need messages, to completely understand what your problems is.
To fix this, please be sure before you start the playback to:
  1. Open: Tools -> Messages.
  2. Set Verbosity to 2
  3. Start playback to reproduce your issue
  4. Save text in a file or copy into clipboard
  5. Then paste the full resulting log here between [​code]and[​/code] (or use Pastebin.com if it's too long)
Also don't forget to name your Operating System and provide the VLC media player version.
:!: If you want your problem to be solved :
* First read troubleshooting guide VSG:Main
* Always provide verbose LOGS ! (command line or from gui)
* Always check your issue against a developer build from Nightly Build of VLC
* Tell us when your problem is solved !

cubelov
New Cone
New Cone
Posts: 2
Joined: 14 Dec 2023 14:31

Re: VLC not playing audio

Postby cubelov » 14 Dec 2023 15:58

Operating System:
Windows 11 Home
version: 23H2
64-bit operating system

VLC Media Player version 3.0.20 Vetinari

Link to pastebin:
https://pastebin.com/DS0ivvyP

Lotesdelere
Cone Master
Cone Master
Posts: 9974
Joined: 08 Sep 2006 04:39
Location: Europe

Re: VLC not playing audio

Postby Lotesdelere » 14 Dec 2023 16:27

A sample file is available in this thread:
https://forum.videolan.org/viewtopic.php?f=14&t=163699

and yes, I can reproduce the issue while it's playing fine with other players including FFplay.

Gruko
Blank Cone
Blank Cone
Posts: 87
Joined: 28 Nov 2010 18:52

Re: VLC not playing audio

Postby Gruko » 15 Dec 2023 02:59

I have no problem to play the sample file with VLC 3.0.20 Vetinari 64 bit, Win11 23H2

Image

5Laser
Blank Cone
Blank Cone
Posts: 13
Joined: 08 Dec 2023 16:26

Re: VLC not playing audio

Postby 5Laser » 15 Dec 2023 19:31

I have no problem to play the sample file with VLC 3.0.20 Vetinari 64 bit, Win11 23H2

Image
Thats weird. Are you using default vlc settings?
I have added another twitter file with issues in my original thread. Could you see if it also plays normally for you?

https://forum.videolan.org/viewtopic.ph ... 18#p541618

Lotesdelere
Cone Master
Cone Master
Posts: 9974
Joined: 08 Sep 2006 04:39
Location: Europe

Re: VLC not playing audio

Postby Lotesdelere » 16 Dec 2023 15:59

Maybe because of this:

Code: Select all

Codec ID : iso5 (iso6/mp41)

Code: Select all

mp4 debug: unrecognized major media specification (iso5).

If I simply remux the file with FFmpeg I'm getting this:

Code: Select all

Codec ID : isom (isom/iso2/avc1/mp41)

and then it's playing fine with VLC.

User avatar
InTheWings
Developer
Developer
Posts: 1275
Joined: 07 Aug 2013 13:15
VLC version: crashing
Operating System: Linux
Contact:

Re: VLC not playing audio

Postby InTheWings » 18 Dec 2023 11:44

Typical "I don't give a f*** about the MP4 specs"

The audio is not interleaved in the fragmented MP4, but only arrives in the LATEST fragment.
That shouldn't be playable.
:!: If you want your problem to be solved :
* First read troubleshooting guide VSG:Main
* Always provide verbose LOGS ! (command line or from gui)
* Always check your issue against a developer build from Nightly Build of VLC
* Tell us when your problem is solved !

Lotesdelere
Cone Master
Cone Master
Posts: 9974
Joined: 08 Sep 2006 04:39
Location: Europe

Re: VLC not playing audio

Postby Lotesdelere » 18 Dec 2023 11:57

The audio is not interleaved in the fragmented MP4, but only arrives in the LATEST fragment.
That shouldn't be playable.

Well, as a matter of fact it's playable with any other player I've tried, including FFplay which is not throwing any error message at all:

Code: Select all

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\Temp\Samples\Jaguar hunting-t=163699.mp4': Metadata: major_brand : iso5 minor_version : 512 compatible_brands: iso6mp41 Duration: 00:01:43.23, start: 0.000000, bitrate: 1365 kb/s Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1280x720, 1232 kb/s, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 2400k tbn (default) Metadata: handler_name : Twitter-vork muxer vendor_id : [0][0][0][0] Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default) Metadata: handler_name : Twitter-vork muxer vendor_id : [0][0][0][0] 15.69 A-V: -0.023 fd= 0 aq= 16KB vq= 218KB sq= 0B f=0/0

5Laser
Blank Cone
Blank Cone
Posts: 13
Joined: 08 Dec 2023 16:26

Re: VLC not playing audio

Postby 5Laser » 19 Dec 2023 13:12

Exactly.
How do all other players or even browsers play those files without any issues?


Return to “VLC media player for Windows Troubleshooting”

Who is online

Users browsing this forum: No registered users and 45 guests