Will running other apps while encoding with AviSynth affect the output?

[eekeek]

I'm using AviSynth and VirtualDub to encode to avi using HuffYUV on a Core 2 Duo E6600 machine, CPU usage shows 65% on each core, will using the PC during encoding like web browsing affect the output and quality of the file? Maybe dropped frames? The reason I ask is that the files must be perfect (for long term archive)

[prOnorama]

From my experience with encoding on an ancient Celeron 900: no quality will not be affected when encoding to .avi (using GK, which uses AviSynth + VirtualDubMod) when running other applications, the encoding will just slow down, but I think that's less of an issue on a Core 2 Duo ;)

[Blue_MiSfit]

Absolutely not. The only time you will potentially get dropped frames is when doing live capture. If you're just processing an existing source, there will be no possibility of loss.

If you're capturing, I would definitely suggest NOT doing anything else, as dropped frames REALLY suck :)

~MiSfit

[mitsubishi]

You don't need to worry about the CPU at all, one of the core principles of a multithreaded OS is atomic separation of processes, this also goes for memory space. Each process is as far as its concerned running solely on its own machine. The only thing you would have to worry about would be disc access, but then only if the app was written in such a way that it dropped data if disc writes weren't immediate, so no worries with these apps.
The only thing I can't vouch for is directshow, if you were using directshow as source and using it elsewhere, but it's probably fine, I've not had issues with it like this.
I'm encoding a couple of shows right now while typing this message on one screen while my Satellite card is showing I'm a celebrity on my WS monitor and I'm not worried.
If you look, many encoding apps run at default in low priority so they only use CPU cycles you aren't using.

[eekeek]

Thanks for the replies and you were all correct.

I encoded a video twice, one under heavy load and one under no load and the MD5 checksum matched perfectly :)

[RogueSquadron]

lol what a query :p