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avchd
Howdy, I just purchased a new camera and uploaded some clips to my computer using an SDHC. It seems to upload okay, but the playback either on VLC or in Vegas preview it is extremely choppy. It is play for 10 seconds, pause for 10 seconds. I’m wondering if it isn’t my chip. It is a dual core but is only 1.8ghz. If it is the chip what do I need? Maybe install a new graphics card, or transcode the clips?
Thks for the input.
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6 Replies
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AVCHD is a very complex form of compression and takes a lot of CPU power to decode….that is a very under powered processor for AVCHD….
Good luck!Scott Francis
Mind’s Eye Audio/Video Productions -
Does Sony make minimum recommendations on the processor?
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[Gary Badgley] “Does Sony make minimum recommendations on the processor?”
Yes. The Sony web site recommends a minimum of 2.8GHz Dual Core for HD editing. Your processor is underpowered for the task.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Okay, I transcoded some clips using Neoscene. They no longer play in VLC but do with media player. The playback is much smoother and there are no longer any long pauses, but it does slow down in places. Maybe I can live with this as a work around until I can afford a more suitable processor.
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I edit a lot of AVCHD and I still experience some slow down. I am using a dual socket Quad Core XEON (8x 2.1Ghz CPU cores). Playback of a single track does fine but playback in multi-cam editing mode is still only about 15-20 fps and it does stutter occasionally. I think the stutter is more of an external hard drive bottle neck rather than the processor.
Kent
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You need something close to a dual-core 2.4GHz Core 2 processor to get decent playback on 1080/60i or so AVC video. So yeah, you’re underpowered.
With that said, editor playback is always choppier than with a good player. VLC has its place, and will play practically any format without your needing to install CODECs. But it’s not very well turned… it’s inefficient and doesn’t use GPU acceleration (the latest claims to do, a little, but very primitive).
If your system has a reasonable GPU and if you’re running a recent version of Windows, you can get some help from the GPU. Specifically, try Windows Media Player if you have Windows 7 — that uses the DXVA 2.0 API and Microsoft’s new AVC decoder.
If you don’t have Windows 7, go and find the Splash Lite player, a free download. That’s going to give you about the most efficient playback you’re going to see on that computer.
-Dave
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