What exactly is "noise"?

[tony123]

I am learning how to use TMPGenc and there's an option for noise reduction. But I'm not sure what noise is.

[housepig]

"noise" in video generally refers to artifacts and color speckles in the image.

for example, if you film a blue sky, but on your capture there are bits of red & green mixed in with the blue, that's noise.

or you capture from a vhs, and there's static from improper tracking, that's noise.

[Craig Tucker]

Well noise applied to audio can be defined as

Sound that is loud, unpleasant, unexpected, or undesired.

These definitions transfer pretty well to video noise.

Types of video noise

[tony123]

I capture off DirecTV and sometimes the picture would have blocks, freezes, or spots. Would TMPGenc be able to filter those out?

[mgh]

The noise filter on TMPGEnc is the best available- but very very slow. OK for video clips not for a full movie.

[lordsmurf]

Noise = something obnoxious that displeases the senses.

In audio, it's crackles, pops, hiss.

In video, it's specs, tracking problems, etc.

Noise = crap that you don't want in the way.

[Gazorgan]

Sattelite artifacts/macro blocks , generally speaking, can't be filtered out.

White text on a red background is a good example of noise (tearing in the video).

[tony123]

Is TMPGenc a good audio noise filter?

[MOVIEGEEK]

Is TMPGenc a good audio noise filter?

Video yes audio no,use Audacity or Goldwave.

[lordsmurf]

Is TMPGenc a good audio noise filter?

No. No no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no. Just wanted to be clear.

Look into SOUNDFORGE