avidemux xvid encoding,video filters to use or not?

[kinematic]

hi all,lately i've been getting into xvid encoding and my program of choice is avidemux since i'm using linux.
i've been getting some pretty good result with the default setting,some resizing and cropping and jawors 1cd matrix on 1 cd rips.
i am however lost when it comes to filters,should i use denoising filters and spatial temporal cleaners?
some sources on the internet say to always use a spatial temportal cleaner such as fluxsmooth to clean up noise that exists between frames and others say to not use them.
this is also the case for noise reduction filters,some say use 'm and some say don't use 'm.
so i,ve come here to ask for some guidelines if i should use any filters and if so should i use them in a particular order or will avidemux sort that out itself?

[foxyshadis]

noise reduction and cleaner are two names for the same action, that's why they're all listed under Noise in the filter menu. spatio-temporal are slower than spatial but almost always give better results, because they take multiple frames into account.

Compared to avisynth, none of the filters are fantastic, but they're fast and a few of them - hqdn3d and fluxsmooth - can do a good job of cleaning moderate noise while retaining most details. The other filters tend to heavily remove detail, and are mostly best for certain types of sources (particularly cartoons can be buldgeoned quite hard). CNR is typically used for rainbow removal.

Although part of post-processing instead of filtering, deblocking is typically helpful for many codecs.

Although the avisynth forum is quite complex, when and how to use denoising is quite well covered there. Almost everything can use a mild denoise to clear up mild compression artifacts that always accumulate, but you usually only get the knack for how to apply with experience fiddling around. (Your personal tastes determine it, as well.)

[kinematic]

thnx for the reply...i'll mosey over to the avisynth forum to do some searching.