Question / Help Audio issue while streaming video file

[Streamia.gr]

I recently live streamed a .mov video file.
Audio was fine on monitor but recorded and streamed differently.
It is like having short starts and stops while playing, you can check the video here:
- https://youtu.be/pBGpIxF_I_M
You can hear the problem from 00':00" to 6':15".

The problem disappeared just like that, I did not change any settings except increasing a little the volume, can't be sure if it was on that specific time.

 

[Streamia.gr]

Tried successfully to reproduce the problem.
There is no pattern, sometimes I'm getting normal audio, sometimes not.
In all cases monitor gives me normal audio.

 

[sethferguson]

I've encountered this problem 2 days in a row. For me, video and audio were fine until about 11 minutes into the clip, then the audio goes funny. Here's my example: https://youtu.be/QN5lBJhxipo

I've run about 10 streams before this without issue...this seems to have popped up randomly. I'm using a Sennheiser G3 lac mic that is super reliable.

If anyone has any suggestions, they would be much appreciated.

****I've just recreated the issue recording the video but not streaming it. Here's the log file: https://obsproject.com/logs/xHDmSJjAHQEC2f2x

 

[Streamia.gr]

Hope someone OBS expert will give soon any guidance about the source of this issue.
Forgive me if being pressing, it is crucial because professional streaming service fail frequently.
Thank you in advance.

 

[Streamia.gr]

I had the same incident even after system reset, disk format and new OBS installation.
I had a proper audio on the monitor but a faulty one in the stream.

 

[Narcogen]

Please post a log with your issue! Here's how...

 

[Streamia.gr]

I could not reproduce the problem. Tried several times.
@sethferguson reported the same issue above including his log file. It may help you with your investigation.
I will keep trying and be back with my own log file.

 

[Narcogen]

@sethferguson wasn't streaming an .mov file-- in fact that log shows no media sources of any kind. Without a log from you to compare to his, there's actually no reason to think your problems are in any way related.

I'd start by suggesting muxing the .mov to another container, like mp4, to start with, and see if the problem ever recurs.

Most audio problems I have with OBS are actually upstream of the app *except* those caused by errors decoding media sources, and the symptom of that is when the audio artifacts *only* appear in the output and never in monitoring. (OBS monitoring is input, not output). Damaged, corrupted, poorly formed or incompatible media sources can even crash an encode session causing black screen or stream to end prematurely, up to including OBS crashing.

 

[Streamia.gr]

@Narcogen thank you for your suggestions.
I'll be back with more data as they occur.

Damaged or corrupted data always stay in that same condition.
Do you think any reason OBS behave differently on the same (corrupted or not) data?
(for example the same video or audio file)

 

[Narcogen]

Not necessarily saying your issue is a bad media file.

Saying:

• .mov not a common format on Windows, maybe use another container or another media file to eliminate the media file as a potential cause of the issue
• Media file problems can manifest in a way that only affects output but not necessarily monitoring and can cause the encoder to crash

I'm not a developer so if there is anything particular about OBS operation that causes it to cope with a malformed media file in some situations but not others, I'm not aware of what it is or would be.

 

[Streamia.gr]

@Narcogen thank you for your reply.

I did change files format to .mp3 using OBS it's own remux function.
I had another incident while streaming. While I was monitoring sound having good quality, it was streamed like this:
https://www.facebook.com/bookia.gr/videos/1003448963345689/
Fortunately, voice input from microphone was OK.

This all makes feel unsafe, this may happen at any time, finally.