Plex playing some files too fast

server-mac

#1

The Issue

Plex plays some files too quickly; seemingly at 150% or so of normal. Interestingly, this only occurs on my Mac Mini HTPC (32-bit Core Duo), but works properly on my testbed MacBook Pro (64-bit Core i7). I don't know how I can reset the client without affecting the server on the Mac Mini.



My Setup

[list][]Plex Media Server runs on a Mac Mini (32-bit Core Duo)

[
]Media is located across a gigabit ethernet network on a DroboFS, mounted via AFP

[]HTPC is the same Mac Mini as PMS runs on

[
]HTPC connects to a receiver via DVI-to-HDMI for video and optical for audio

[]Testbed is a MacBook Pro (64-bit Core i7)[/list]

Most of that won't be relevant, but I include it for completeness. Full System Profiler reports here.



**Plex Media Server Configuration
*

Hosted on Mac Mini, files on DroboFS via AFP

Language/subtitle settings as follows:



http://img7.imageshack.us/img7/272/languagepreferences.png



Issue:  Plays back too fast, probably 150% of normal (Mac Mini only)<br />
File:   Shares/Anime/Series/Lost Universe/Lost Universe - S01E01.mkv<br />
MD5:    c5ce51bdd1608bec3106c2ecc8ef0fd1<br />
<br />
* * * MediaInfo Mac 0.7.36.0 file analysis report.<br />
* * * MediaInfo Mac is ©2010 by Diego Massanti - http://mediainfo.massanti.com<br />
* * * MediaInfoLib by Jerome Martinez - http://mediainfo.sourceforge.net<br />
Created on: Jul 20, 2011 1:28:46 AM CDT<br />
Report for file: Lost Universe - S01E01.mkv<br />
<br />
General / Container Stream #1<br />
    Total Video Streams for this File.................1<br />
    Total Audio Streams for this File.................2<br />
    Total Subtitle Streams for this File..............2<br />
    Video Codecs Used.................................DivX 5<br />
    Audio Codecs Used.................................AAC LC-SBR / AAC LC-SBR<br />
    SubTitle Codecs Used..............................UTF-8 / VobSub<br />
    Available Sutbitle Languages......................English / English<br />
    File Format.......................................Matroska<br />
    Play Time.........................................22mn 52s<br />
    Total File Size...................................233 MiB<br />
    Total Stream BitRate..............................1 423 Kbps<br />
    Title (Tag).......................................[a4e]Lost Universe - 01 - A Blade of Light Shines<br />
    Encoded with......................................mkvmerge v0.8.9 built on May  6 2004 19:48:43<br />
    Encoding Library..................................libebml v0.7.0 + libmatroska v0.7.0<br />
Video Stream #1<br />
    Codec (Human Name)................................MPEG-4 Visual<br />
    Codec (FourCC)....................................DX50<br />
    Frame Width.......................................696 pixels<br />
    Frame Height......................................520 pixels<br />
    Frame Rate........................................29.970 fps<br />
    Total Frames......................................41124<br />
    Display Aspect Ratio..............................4:3<br />
    Scan Type.........................................Progressive<br />
    Color Space.......................................YUV<br />
    Codec Settings (Summary)..........................BVOP<br />
    Codec Settings (BVOP).............................Yes<br />
    Codec Settings (QPel).............................No<br />
    Codec Settings (GMC)..............................No warppoints<br />
    Codec Settings (Matrix)...........................Default (H.263)<br />
    Video Stream Length...............................22mn 52s 172ms<br />
    Bit Depth.........................................8 bits<br />
    Video Stream Title................................[a4e]Lost Universe - 01<br />
    Video Encoder.....................................DivX503b1328p<br />
    Video Stream Language.............................Japanese<br />
Audio Stream #1<br />
    Codec.............................................AAC<br />
    Codec (FourCC)....................................A_AAC/MPEG4/LC/SBR<br />
    Audio Stream Length...............................22mn 52s 159ms<br />
    Number of Audio Channels..........................6<br />
    Sampling Rate.....................................44.1 KHz<br />
    Audio Stream Title................................Japanese Audio<br />
    Audio Stream Language.............................Japanese<br />
Audio Stream #2<br />
    Codec.............................................AAC<br />
    Codec (FourCC)....................................A_AAC/MPEG4/LC/SBR<br />
    Audio Stream Length...............................22mn 52s 159ms<br />
    Number of Audio Channels..........................6<br />
    Sampling Rate.....................................44.1 KHz<br />
    Audio Stream Title................................English Audio<br />
    Audio Stream Language.............................English<br />
Subtitle Stream #1<br />
    Language..........................................English<br />
    Format............................................UTF-8<br />
    Codec ID..........................................S_TEXT/UTF8<br />
    Codec Info........................................UTF-8 Plain Text<br />
Subtitle Stream #2<br />
    Language..........................................English<br />
    Format............................................VobSub<br />
    Codec ID..........................................S_VOBSUB<br />
    Codec Info........................................The same subtitle format used on DVDs<br />



#2

No change in Plex 0.9.3.3.


#3

I have the same issues, but it's not the entire length of the movie/tv show...every now and then for < 5 seconds, the audio and video seem to speed up, but then it stops and it's fine for the rest of the show.



I've only noticed it on .mkv files.



-Kristijan


#4

[quote name='Kristijan' timestamp='1311748829' post='183982']


I have the same issues, but it's not the entire length of the movie/tv show...every now and then for < 5 seconds, the audio and video seem to speed up, but then it stops and it's fine for the rest of the show.



I've only noticed it on .mkv files.



-Kristijan

[/quote]




I have the same issue. Using Mac Mini 5,1 (2011) with Core i5 output audio/video over HDMI and running Lion 10.7. It happens occasionally for a few seconds. It's pretty weird, but I don't think it's related to the more annoying audio issue currently plaguing Lion.


#5

Hi Guys,



I have the some video files play too fast too. Only, all of them play too fast all the time.



For example the, all the video sent from my iOS device to the AirVideo Plex plugin, diamondsw has written is 1.5x too fast.

Some of the Apple trailers are too fast, example is "The Artist" trailer.

Some of my anime mkv's are playing too fast (Bleach, Naruto, etc..)



And while I'm typing this, I've figured out the problem!



I'm running an Apogee mini-dac with Firewire at 192Khz sample rate from my mac mini. Some movies when my DAC is set at 192Khz, play too fast, when i set it to for example 48Khz they play fine.

I know, Plex adjusts the video speed to the rate the audio is playing. So i guess, since Lion (10.7.0 and .1), for some video files, the amount of audio samples going to the OS X system is streamed too fast and plea is trying to keep the video speed up.



My current solution is, switching my sample rate to 48Khz when running plea, and setting it back to 192Khz when playing my alas and flac files.

But I hope the devs can find and fix this problem.



btw. XBMC does not have this problem ;)


#6

Are there any programs (like eyetv) running in the background? Try closing their windows and therefore their claim on the audio output. Maybe that helps.


#7

Hi



Rather than creating a new thread I thought Id post here. I have similar problems to the ones above.



Re-installed Plex, with Lion.



Have mkvs that are (but still in sync) playing too fast.



Plays fine with VLC but in Plex, no go.



Tried looking everywhere but can't find a solution! Hope someone can help :)


#8

[quote name='Soundbites' timestamp='1314346652' post='191498']


Hi Guys,



I have the some video files play too fast too. Only, all of them play too fast all the time.



For example the, all the video sent from my iOS device to the AirVideo Plex plugin, diamondsw has written is 1.5x too fast.

Some of the Apple trailers are too fast, example is "The Artist" trailer.

Some of my anime mkv's are playing too fast (Bleach, Naruto, etc..)



And while I'm typing this, I've figured out the problem!



I'm running an Apogee mini-dac with Firewire at 192Khz sample rate from my mac mini. Some movies when my DAC is set at 192Khz, play too fast, when i set it to for example 48Khz they play fine.

I know, Plex adjusts the video speed to the rate the audio is playing. So i guess, since Lion (10.7.0 and .1), for some video files, the amount of audio samples going to the OS X system is streamed too fast and plea is trying to keep the video speed up.



My current solution is, switching my sample rate to 48Khz when running plea, and setting it back to 192Khz when playing my alas and flac files.

But I hope the devs can find and fix this problem.



btw. XBMC does not have this problem ;)

[/quote]




I have the same issue, all episodes of Drew Carey's Improv-a-ganza (MKV Files) play so fast, that everyone sounds like chipmunks, vlc doesn't have this issue during playback, plex has it for the entire episode. (Audio and video are in sync, just about 1.5 times normal speed)



Mac OS X 10.7 Lion Mac Mini 2.52 GHz Core 2 Duo.



Thanks


#9

[quote name='ScottRTL' timestamp='1316051224' post='195597']


I have the same issue, all episodes of Drew Carey's Improv-a-ganza (MKV Files) play so fast, that everyone sounds like chipmunks, vlc doesn't have this issue during playback, plex has it for the entire episode. (Audio and video are in sync, just about 1.5 times normal speed)



Mac OS X 10.7 Lion Mac Mini 2.52 GHz Core 2 Duo.



Thanks

[/quote]




I had exactly the same issue with the season 3 of Fringe in french, for now the only way i've found to fix that is to disable DTS and Dolby in audio option of Plex.


#10

Not that anyone's probably still looking at this, but like many such bugs, Plex 0.9.5 Laika fixed it. Yay!


#11

[quote name='diamondsw' timestamp='1324623335' post='224673']


Not that anyone's probably still looking at this, but like many such bugs, Plex 0.9.5 Laika fixed it. Yay!

[/quote]






i still have this problem, has any one found any solutions?



running plea media server Version 0.9.6.9.240-8fd9c6a


#12

I’m still having this problem on certain files, exactly as described above, and I’m now on Plex 1.13.0.5023 with a Roku3.