<div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I have been using MythTV for more than 5 years, and don't remember seeing anything like this before. Any ideas? I just started recording The Wiggles for my children. I have recorded four episodes across two weekends. Recording is done via HDHomerun from ATSC antenna source. All four episodes play back (from the Watch Recordings menu option) at a very slow rate. I have tried playing on two different frontends with the same results on both. If I manually adjust the time stretch to 1.0x, then they play at normal speed. I was hopeful that transcoding the episodes (after I cut commercials) would fix the problem, but no change.<div>
<br></div><div>I have over 1000 recordings on my backend, many of them recorded on the same channel (NBC) from the same tuner. I don't know what's different about these four shows. The frontend log has a suspicious entry in it: "(SetStretchFactorLocked) AO: Using time stretch 0.45".</div>
<div><br></div><div>Here is the relevant section of a frontend log file:<div><br></div><div><br></div><div><div><div>Aug 31 07:30:14 ZBox-down mythfrontend[2649]: I CoreContext tv_play.cpp:987 (TV) TV: Creating TV object</div>
<div>Aug 31 07:30:14 ZBox-down mythfrontend[2649]: N CoreContext mythmainwindow.cpp:2591 (PauseIdleTimer) Resuming idle timer</div><div>Aug 31 07:30:14 ZBox-down mythfrontend[2649]: N CoreContext mythmainwindow.cpp:2586 (PauseIdleTimer) Suspending idle timer</div>
<div>Aug 31 07:30:14 ZBox-down mythfrontend[2649]: I CoreContext tv_play.cpp:1206 (Init) TV: Created TvPlayWindow.</div><div>Aug 31 07:30:14 ZBox-down mythfrontend[2649]: I CoreContext tv_play.cpp:2121 (HandleStateChange) TV: Attempting to change from None to WatchingPreRecorded</div>
<div>Aug 31 07:30:15 ZBox-down mythfrontend[2649]: N CoreContext audioplayer.cpp:167 (ReinitAudio) AudioPlayer: Enabling Audio</div><div>Aug 31 07:30:15 ZBox-down mythfrontend[2649]: I CoreContext avformatdecoder.cpp:2102 (ScanStreams) AFD: Opened codec 0xae17b50, id(MPEG2VIDEO) type(Video)</div>
<div>Aug 31 07:30:15 ZBox-down mythfrontend[2649]: I CoreContext avformatdecoder.cpp:1960 (ScanStreams) AFD: codec AC3 has 6 channels</div><div>Aug 31 07:30:15 ZBox-down mythfrontend[2649]: I CoreContext avformatdecoder.cpp:2102 (ScanStreams) AFD: Opened codec 0x9ad6340, id(AC3) type(Audio)</div>
<div>Aug 31 07:30:15 ZBox-down mythfrontend[2649]: I CoreContext audio/audiooutputbase.cpp:791 (Reconfigure) AO: Opening audio device 'iec958:CARD=Intel,DEV=0' ch 2(6) sr 48000 sf signed 16 bit reenc 1</div><div>
Aug 31 07:30:15 ZBox-down mythfrontend[2649]: E CoreContext audio/audiooutputalsa.cpp:195 (SetPreallocBufferSize) ALSA: Setting hardware audio buffer size to 128</div>
<div>Aug 31 07:30:15 ZBox-down mythfrontend[2649]: E CoreContext audio/audiooutputalsa.cpp:211 (SetPreallocBufferSize) ALSA: Error opening /proc/asound/card0/pcm1p/sub0/prealloc: Permission denied. </div><div>Aug 31 07:30:15 ZBox-down mythfrontend[2649]: E CoreContext audio/audiooutputalsa.cpp:213 (SetPreallocBufferSize) ALSA: Try to manually increase audio buffer with: echo 128 | sudo tee /proc/asound/card0/pcm1p/sub0/prealloc</div>
<div>Aug 31 07:30:15 ZBox-down mythfrontend[2649]: E CoreContext audio/audiooutputalsa.cpp:545 (OpenDevice) ALSA: Unable to sufficiently increase ALSA hardware buffer size - underruns are likely</div><div>Aug 31 07:30:15 ZBox-down mythfrontend[2649]: I CoreContext audio/audiooutputbase.cpp:353 (SetStretchFactorLocked) AO: Using time stretch 0.45</div>
<div>Aug 31 07:30:16 ZBox-down mythfrontend[2649]: I CoreContext mythpainter_ogl.cpp:62 (ClearCache) Clearing OpenGL painter cache.</div><div>Aug 31 07:30:17 ZBox-down mythfrontend[2649]: I CoreContext mythrender_vdpau.cpp:1675 (CreatePresentationSurfaces) VDPAU: Created 2 output surfaces.</div>
<div>Aug 31 07:30:17 ZBox-down mythfrontend[2649]: I CoreContext mythrender_vdpau.cpp:401 (Create) VDPAU: Created VDPAU render device 1920x1080</div><div>Aug 31 07:30:17 ZBox-down mythfrontend[2649]: N CoreContext mythplayer.cpp:506 (CheckExtraAudioDecode) Player(3): Forcing decode extra audio option on (Video method requires it).</div>
<div>Aug 31 07:30:17 ZBox-down mythfrontend[2649]: E CoreContext mythplayer.cpp:2308 (VideoStart) Player(3): Video sync method can't support double framerate (refresh rate too low for 2x deint)</div><div>Aug 31 07:30:17 ZBox-down mythfrontend[2649]: I CoreContext mythplayer.cpp:1737 (InitAVSync) Player(3): Video timing method: USleep with busy wait</div>
<div>Aug 31 07:30:17 ZBox-down mythfrontend[2649]: I CoreContext tv_play.cpp:5169 (StartPlayer) TV: Created player.</div><div>Aug 31 07:30:17 ZBox-down mythfrontend[2649]: I CoreContext tv_play.cpp:2360 (HandleStateChange) TV: Changing from None to WatchingPreRecorded</div>
<div>Aug 31 07:30:17 ZBox-down mythfrontend[2649]: I CoreContext tv_play.cpp:2451 (HandleStateChange) TV: Main UI disabled.</div><div>Aug 31 07:30:17 ZBox-down mythfrontend[2649]: I CoreContext tv_play.cpp:378 (StartTV) TV: Entering main playback loop.</div>
<div>Aug 31 07:30:17 ZBox-down mythfrontend[2649]: I CoreContext mythrender_vdpau.cpp:587 (CheckOutputSurfaces) VDPAU: Added 2 output surfaces (total 4, max 4)</div><div>Aug 31 07:30:17 ZBox-down mythfrontend[2649]: I CoreContext subtitlescreen.cpp:766 (InitializeFonts) InitializeFonts()</div>
<span class="HOEnZb"><font color="#888888">
</font></span></div><span class="HOEnZb"><font color="#888888"><div><br></div></font></span></div></div></blockquote><div><br></div><div>I feel your pain... 30 minutes of the wiggles is bad... stretching it out to over 60 minutes sounds like a nightmare come true.</div>
<div><br></div><div>Sounds like you have a playback group assigned to the Wiggles? Never used playback groups, but I believe you can set the speed on them. </div></div>