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Author Topic: Audio stuttering watching Live TV - short jump backwards fixes it  (Read 2914 times)

CountryBumkin

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Has anyone else noticed an audio stuttering while watching Live TV? I get this quite often (although I don' watch much live TV). It seems to occur after an hour or so, then I use the "back button" on my remote to jump back a couple of seconds and the audio clears up. Seems like audio is getting gout of sync with video.

I use RO+HQ with WASAPI and Videoclock On.
My HTPC is used for 90% movie playback and watching recorded TV (and Netflix) - so I don't watch much Live TV and haven't bothered to mention this Live TV issue before, but I have seen it for a while now.
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muzicman0

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #1 on: November 04, 2013, 11:50:06 am »

yes, I see this.  My solution is the same as yours...if I back up 10 seconds, it is fine...
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Yaobing

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #2 on: November 04, 2013, 12:39:21 pm »

Is "Event Style" on or off?
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Yaobing Deng, JRiver Media Center

muzicman0

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #3 on: November 04, 2013, 12:41:42 pm »

assuming you are talking audio hardware, I am using Direct Sound.
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CountryBumkin

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #4 on: November 04, 2013, 01:37:41 pm »

Is "Event Style" on or off?

In my case "Event Style" is ON.
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NickF

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #5 on: November 04, 2013, 02:21:26 pm »

Is "Event Style" on or off?
I also have this problem.

I'm using ASIO which doesn't use event style.

Nick.
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JimH

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #6 on: November 04, 2013, 02:22:24 pm »

Is a NAS drive involved? 
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muzicman0

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #7 on: November 04, 2013, 02:22:59 pm »

For me, it is a very brief stutter...usually I notice it because words in the dialog will be repeated...something like "I need to go to to the cabin" will be what I hear.
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muzicman0

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #8 on: November 04, 2013, 02:23:26 pm »

Is a NAS drive involved? 
Not for me...it is a local drive for TV.
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NickF

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #9 on: November 04, 2013, 02:33:25 pm »

Is a NAS drive involved? 
Not for me.  It's a local drive.

Nick.
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Yaobing

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #10 on: November 04, 2013, 03:08:56 pm »

I asked about Event Style is to determine whether this is a new issue or a known issue.  There is a known issue where a lack of audio data (due to poor signal for example) would cause audio renderer to repeat its last bits of data.  In my tests I could not get the problem to occur when using WASAPI with Event Style (in other words, this audio mode seems to work best).  It seems that pausing video until enough data is buffered is the only way to avoid the problem. I will work on it, hopefully soon.
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Yaobing Deng, JRiver Media Center

Yaobing

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #11 on: November 18, 2013, 09:04:45 am »

In build 19.0.71:

3. Changed: When television playback gets too close to the front edge of the time-shifting buffer, MC will pause video briefly until enough data are buffered.


Does this help eliminate the audio stuttering for you all?  It does for me.
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Yaobing Deng, JRiver Media Center

muzicman0

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #12 on: November 18, 2013, 09:57:27 am »

so far so good...I thought it happened once last night, but it turned out that it had actually been recorded that way.
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CountryBumkin

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #13 on: November 19, 2013, 05:00:56 am »

I have not had stuttering issues either - so I guess its fixed. Thanks!
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gtgray

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #14 on: November 25, 2013, 02:01:08 pm »

I have a similar freeze or stutter with live TV. ATSC will freeze and I end the program which takes me to the program guide and come back and it will be fine. This is intermittent and will sometimes occur several times an hour and will often not occur for hours. On cablecard (Comcast) it will just stutter then freeze for a second and then continue.

Both ATSC and Comcast play fine in WMC.  ROHQ Sandy Bridge Win 7, NVidia 650Ti Boost.
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gtgray

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Re: Audio stuttering watching Live TV - short jump backwards fixes it
« Reply #15 on: November 26, 2013, 02:45:14 pm »

I have a similar freeze or stutter with live TV. ATSC will freeze and I end the program which takes me to the program guide and come back and it will be fine. This is intermittent and will sometimes occur several times an hour and will often not occur for hours. On cablecard (Comcast) it will just stutter then freeze for a second and then continue.

Both ATSC and Comcast play fine in WMC.  ROHQ Sandy Bridge Win 7, NVidia 650Ti Boost.

I changed to direct sound and it appears my freeze/stuttering with ATSC and Cablecard live TV have cleared up. I do bitstream.
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