Aliasing

Anti aliasing audio

Anti aliasing audio
  1. What is anti-aliasing audio?
  2. How do I stop aliasing in audio?
  3. What causes aliasing in audio?
  4. What is aliasing in digital audio?

What is anti-aliasing audio?

November 2020) An anti-aliasing filter (AAF) is a filter used before a signal sampler to restrict the bandwidth of a signal to satisfy the Nyquist–Shannon sampling theorem over the band of interest.

How do I stop aliasing in audio?

To prevent aliasing, all you have to do is record with an adequate sample rate. That is, you should choose the sample rate that best represents the Nyquist frequency you wish to record up to. The default sample rate is 44.1 kHz, meaning you can safely record frequencies all the way up to 22,050 Hz.

What causes aliasing in audio?

Aliasing occurs when a signal is sampled at an insufficient rate. Two different signals can become indistinguishable from each other when they are sampled – they are aliases of each other.

What is aliasing in digital audio?

In signal processing and related disciplines, aliasing is an effect that causes different signals to become indistinguishable (or aliases of one another) when sampled.

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