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Aliasing
- Importance of choosing the right aliasing frequency: https://matthews.sites.wfu.edu/misc/DigPhotog/alias/index.html
- If a signal containing 45 KHz is sampled at 44.75 KHz, it will result in a 0.25 KHz peak ~ C4 tone!!
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To avoid aliasing, signals have to be correctly bandlimited.
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Aliasing Common Mistakes: https://www.wescottdesign.com/articles/Sampling/sampling.pdf
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Basics of AA Low-Pass filters: https://www.digikey.com/en/articles/the-basics-of-anti-aliasing-low-pass-filters
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The doubt I asked Paula about lines on my screen: https://www.quora.com/Why-is-it-that-when-I-take-pics-of-my-computer-screen-from-my-phone-the-picture-comes-out-all-grainy