Randomly skips/fails to play some samples during playback?

You're right that was foolish let me clarify.
Raising the I/O buffer thing is a good idea, i've tried that already though and no joy
BASICALLY i've had this problem with a couple of tracks, ones which i have worked on the longest and probably the ones with the most effect plugins and tracks used. Seemingly at random during playback some of the samples dont play (and some even stop playing halfway through the sample). If the regions are bounced, the resulting wav file visibly splits the original sound where the computer 'decided' to stop/restart playing the sample. Again, i haven't found a pattern: - at one point a four bar loop with three tracks solo'd would play all the tracks perfectly during playback for a few seconds, then suddenly switch to only playing one track, then switch back after another few seconds.
Weird.
I think it may be related to previous experience which i have had with the Space Designer and Echo effects, where the echo or reverb sound itself cuts out halfway through the sound/after a seemingly random amount of time (and then cuts back in).
I've seen this reverb and effect problem on more than one computer, but the original problem with the track playback is, in my experience, unique to my system.
The computer i'm using is not old or at all running out of memory (although i realise this does not exempt it from being the cause of the problem)
Anyway this has been trolling me for weeks and its driving me mad
Thanks
OP

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Gstreamer fails to play *some* .mp4 videos

Gstreamer is no longer able to play *some* .mp4 videos. Just until recently
(possibly update) that worked fine for me. I will appretiate any help with resolving this problem.
Videos concerning were downloaded from Youtube via the Firefox DownloadHelper,
so I suspect some of them to use some non-standard format feature. Also
ffmpeg-ing videos to other or same format works and converted videos can be
played by Gstreamer without problems.
This is the only download video I was able to confirm Gstreamer can still play:
http://www.youtube.com/watch?v=T0UbcngpDkk
It fails for almost every other, e.g.:
http://www.youtube.com/watch?v=h0ffIJ7ZO4U
Gstreamer output:
$ gst-launch-0.10 filesrc location=blue.mp4 ! decodebin2 name=dec ! queue !
ffmpegcolorspace ! autovideosink
New clock: GstSystemClock
Received end of stream from „pipeline0“.
Execution ended after 181781 ns.
Working video ffmpeg output:
$ ffmpeg -i Blue\ Effect\ -\ Má\ Hra-2.mp4
ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers
built on Mar 17 2012 08:51:02 with gcc 4.6.3
configuration: --prefix=/usr --enable-libmp3lame --enable-libvorbis
--enable-libxvid --enable-libx264 --enable-libvpx --enable-libtheora
--enable-libgsm --enable-libspeex --enable-postproc --enable-shared
--enable-x11grab --enable-libopencore_amrnb --enable-libopencore_amrwb
--enable-libschroedinger --enable-libopenjpeg --enable-librtmp
--enable-libpulse --enable-gpl --enable-version3 --enable-runtime-cpudetect
--disable-debug --disable-static
libavutil 51. 35.100 / 51. 35.100
libavcodec 53. 61.100 / 53. 61.100
libavformat 53. 32.100 / 53. 32.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 61.100 / 2. 61.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Blue Effect - Má Hra-2.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2011-12-16 00:15:06
Duration: 00:10:12.24, start: 0.000000, bitrate: 436 kb/s
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661),
yuv420p, 640x360, 337 kb/s, 25 fps, 25 tbr, 50 tbn, 50 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 95
kb/s
Metadata:
creation_time : 2011-12-16 00:15:06
handler_name :
Not working video ffmpeg dump:
$ ffmpeg -i Dire\ Straits\ -\ Sultans\ Of\ Swing.mp4
ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers
built on Mar 17 2012 08:51:02 with gcc 4.6.3
configuration: --prefix=/usr --enable-libmp3lame --enable-libvorbis
--enable-libxvid --enable-libx264 --enable-libvpx --enable-libtheora
--enable-libgsm --enable-libspeex --enable-postproc --enable-shared
--enable-x11grab --enable-libopencore_amrnb --enable-libopencore_amrwb
--enable-libschroedinger --enable-libopenjpeg --enable-librtmp
--enable-libpulse --enable-gpl --enable-version3 --enable-runtime-cpudetect
--disable-debug --disable-static
libavutil 51. 35.100 / 51. 35.100
libavcodec 53. 61.100 / 53. 61.100
libavformat 53. 32.100 / 53. 32.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 61.100 / 2. 61.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Dire Straits - Sultans Of Swing.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isomavc1mp42
creation_time : 2010-02-22 17:27:21
Duration: 00:04:26.72, start: 0.000000, bitrate: 663 kb/s
Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16,
122 kb/s
Metadata:
creation_time : 2010-02-22 17:27:21
handler_name : (C) 2007 Google Inc. v08.13.2007.
Stream #0:1(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661),
yuv420p, 480x360 [SAR 1:1 DAR 4:3], 538 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc
Metadata:
creation_time : 2010-02-22 17:27:21
handler_name :
Last edited by xkrajnan (2012-03-19 13:56:51)

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Randomly skips/fails to play some samples during playback?

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