Preview unable to keep up with video.

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hi,

 

i trying premier cc hitting issue video preview window.  video not keep more few couple of seconds although audio works fine.  if stop preview take 4+ seconds catch up. video plays fine vlc media player.  @ point cannot edit video @ , wary of paying monthly using premier.

 

p.c.

cpu: intel i7-4790k (not overclocked)

ram: 16gb @ 1600mhz

graphics: nvidia gtx 1070 (zotac amp extreme)

graphics drivers: geforce 368.82 (14th july 2016).

audio: external usb dac (fiio e10)

capture / working drive: 3x sata3 ssd striped (windows software raid) on lsi 2940 sas controller.

drive benchmark (crystal mark 5x 1gb):

  • seq q32t1 read: 644 mb/s, seq read: 395 mb/s
  • seq q32t1 write: 331 mb/s, seq write: 299 mb/s
  • 4k q32t1 read: 324 mb/s, 4k read: 24 mb/s
  • 4k q32t1 write: 304 mb/s, 4k write: 88 mb/s

 

workflow;

video captured via dxtory: 2560x1440p 60fps using h264 - mpeg-4 avc (part 10) (x264) codec.

audio 1 captured via dxtory: stereo 48,000hz @ 128kb/s - mpeg layer 3 (mp3)

audio 2 captured via dxtory: stereo 48,000hz @ 64kb/s - mpeg layer 3 (mp3)

 

resulting file 40.9gb , video 28 minutes long. 

 

open premier cc

start new project

rename , select ok.

import media.

drag media sequence window (bottom right timeline).

press play in preview window (scale fit, 1/2 resolution).

-- plays few frames , drops everything.

-- audio plays fine.

 

cpu: 20%

ram: 5gb used.

disk: 4%

 

i have used premier 1080 @ 30fps once or twice no issues have touched premier @ basic level.  hoping quick fix turning option or 2 on / off somewhere.

 

any appreciated

h.264 not great codec edit large amount of footage in requires lot of work computer decode , playback. if use media encoder transcode codec such prores or dnxhd/hr you'll have easier time.



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