Hi,
I'm experiencing a similar / identical problem. The preview pane video is slow and falls behind the audio track. If I pause and resume the playback, the video jumps to the right frame and is in sync with the audio track, but starts to fall behind right away after resuming.
The media file I'm editing / previewing is a 720p H.264 that I've converted to .avi using Matrox MPEG-2 I-frame HD codec, data rate 150Mb/s. Further details by your suggested MediaInfo further down *).
I'm also using a laptop, but it's a Lenovo X301 with Intel dual-core U9400, 3GB of RAM, and an SSD hard drive, so quite a powerhouse for a laptop. It is a little low on SSD space - just 7GB free - so it's possible that things are getting tight there. Any recommendations? I've already cleaned the cache with Videopad. Any other places I should look into?
I consider myself relatively experienced with PCs, so all tips, even detailed to the bone, are welcome. I try to avoid touching registers, though
Thanks,
JSK
*)
General
Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
File size : 5.90 GiB
Duration : 7mn 27s
Overall bit rate : 113 Mbps
Video
ID : 0
Format : M701
Codec ID : M701
Duration : 7mn 27s
Bit rate : 112 Mbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Bits/(Pixel*Frame) : 4.045
Stream size : 5.82 GiB (99%)
Audio
ID : 1
Format : PCM
Format settings, Endianness : Little
Format settings, Sign : Signed
Codec ID : 1
Codec ID/Hint : Microsoft
Duration : 7mn 27s
Bit rate mode : Constant
Bit rate : 1 536 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 82.0 MiB (1%)
Interleave, duration : 166 ms (4.98 video frames)
Interleave, preload duration : 469 ms