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What topics can I ask about here?

Signal Processing Stack Exchange is for practitioners of the art and science of signal, image and video processing.

The sorts of topics that are on-topic are:

What if I'm not sure?

Please look around to see if your question has been asked before. It’s also OK to ask and answer your own question.

If your question is not specifically on-topic for Signal Processing Stack Exchange, it may be on topic for another Stack Exchange site. If no site currently exists that will accept your question, you may commit to or propose a new site at Area 51, the place where new Stack Exchange communities are democratically created.

For more help, see "What types of questions should I avoid asking?"