Live TV - Back to back recordings start 10 min early

[MichaelK79 5]

I have noticed this for some time now but thought I would bring it to your attention.

I have my emby live tv setup with over the air antenna. Using a Hauppauge TV Tuner.

I have now noticed that whenever recording two shows back to back on the same channel the second or subsequent recordings will all start 10 min early. My settings for recording are to start 1 min early and stop 2 min after.

The recording that tipped me off was King of Queens. I would record Seinfeld followed by King of Queens on the same channel. Seinfeld recording is fine. When I play King of Queens it shows a recording time of 40 minutes. The first 10 minutes is the last 10 minutes of the Seinfeld episode. Hopefully that made sense.

Now I am recording some other shows on different channels and have noticed the same. Seems to be if its the same channel and you record anything back to back there is that 10 min carry over.

For me this is low priority. I can live with it. Just wanted to report my findings.

[Luke 42077]

Hi, we'll take a look at it. Thanks for reporting.

 

[Carlo 4560]

On 2/22/2025 at 5:29 PM, MichaelK79 said:

I have noticed this for some time now but thought I would bring it to your attention.

I have my emby live tv setup with over the air antenna. Using a Hauppauge TV Tuner.

I have now noticed that whenever recording two shows back to back on the same channel the second or subsequent recordings will all start 10 min early. My settings for recording are to start 1 min early and stop 2 min after.

The recording that tipped me off was King of Queens. I would record Seinfeld followed by King of Queens on the same channel. Seinfeld recording is fine. When I play King of Queens it shows a recording time of 40 minutes. The first 10 minutes is the last 10 minutes of the Seinfeld episode. Hopefully that made sense.

Now I am recording some other shows on different channels and have noticed the same. Seems to be if its the same channel and you record anything back to back there is that 10 min carry over.

For me this is low priority. I can live with it. Just wanted to report my findings.

Hi,

By any chance, did you previously have a start time setup of 10 minutes and scheduled any series recordings?

If any of these are series recordings, if you edit the recording, does it show 1 or 10 minutes early for the start time?

[MichaelK79 5]

@Carlo
Short answer: No. I have never used an alternative start/stop time. In the recording settings all my recordings are set to start 1 min early and stop 2 min late.

More details:
My setup has always been pretty default. Standard recording start and finish times. I have never deliberately set an advance of more than 1 minute for any recording. SOP for me is to just record what is on the same channel after if I need to extend the recording. Sports is the best example because they can run long. I don't go into the recording setting and adjust start and stop time for extensions and never really have. I just record a certain amount of shows on the same channel following the program. This way I'm not limited to 90 min or any cap. I also remember trying to adjust it after the recording had started and was going to run long and it didn't work (probably expectedly) so I just said, that's not for me. Not mad about it. Just use my own method for reliability

My thinking on this is that maybe this isn't global. Maybe there is just a corruption in my server. If no one can reproduce this. It has definitely been happening for a long time I just wasn't really registering it. As I think back now when I would record sports (auto racing) I'm most likely watching live, because sports. Sometimes I'd have to go somewhere and would end up watching the recording. Those recordings, I want to say, also exhibit this issue. There is a carry over of recording that bleeds into the front of the next recording. I never really focused on it. Just fast forward to where I am caught up as you would do.

Another assumption I have is that this is buffer that is potentially unavoidable? Is there a buffer setting within emby server? In my WinTV tuner the buffer is set to 30 min.

 

[Carlo 4560]

Thanks for the detailed reply.
One thing I forgot to ask you.  What version of the server are you running?

Carlo

[MichaelK79 5]

@Carlo

I am currently on version 4.8.10.0 for the server with automatic updates enabled.

My tuner is Hauppauge WinTV-quadHD if that is of any significance or help.
My version of WinTV is v.8.5

Michael

[Carlo 4560]

Never used WinTV myself.
Does it have any logs that show anything useful?

Carlo

[MichaelK79 5]

@Carlo

It can do logging but I don't have it enabled. Regardless, WinTV is not doing any recording itself. I'm content if there is no closure on this. Apparently its only me experiencing this anomaly. It is mildly annoying at worst.

Michael

[Luke 42077]

No, it is real I think. I believe i know why it is happening. It is on our list for review. Thanks.

[ulanov 16]

@Luke - would your suspected reason include what has just started for me, after installing a new NAS and completely fresh Emby installation?  Most recordings are starting about 7 minutes early (though set for 0), and consistently for those programs, while some start 3 or so minutes early (again consistent for those programs) and others varying.  The full program is then recorded (with 0 minutes overrun, per the setting).

I have checked the individual series setting and each shows 0,0 in accordance with the general setting.  These are NOT for back-to-back recordings, as in the above case, but for programs that have no previous recording running.

I'm baffled.  I am running 4.8.11.0, the last available for my TerraMaster NAS.  Any advice on what I can do?

[ulanov 16]

@Luke- Profound apologies.  Problem solved.  Multiple devices out of sync in differing time servers.  My bad.