# nyquist theorem

Description

The Nyquist–Shannon sampling theorem is a theorem in the field of signal processing which serves as a fundamental bridge between continuous-time signals and discrete-time signals.

Nyquist's theorem states that a periodic signal must be sampled at more than twice the highest frequency component of the signal. In practice, because of the finite time available, a sample rate somewhat higher than this is necessary. A sample rate of 4 per cycle at oscilloscope bandwidth would be typical.

## Nyquist Theorem

Pro Audio Guest
7 June 2010

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A principle used by engineers when designing equipment for the digitization of analog signals. Due to the complex nature of sampling audio, the theory states that for any given sample rate, the maximum bandwidth of the analog source must fall below one half the sampling frequency. If this formula is not followed, errors in the form of aliasing will be introduced into the data file. To prevent this happening, analog to digital converter usually have steep filters to remove any material above the Nyquist frequency.

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## Nyquist–Shannon sampling theorem

bwmac
14 May 2007

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Nyquist–Shannon sampling theorem

I find this very confusing

http://en.wikipedia.org/wiki/Nyquist-Shannon_sampling_theorem

I find this very confusing

http://en.wikipedia.org/wiki/Nyquist-Shannon_sampling_theorem

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## Analog I/O 101 - Classic vs. Nyquist vs. Nyquist

Pro Audio Guest
24 May 2001

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IF I understand correctly, you offer three kinds of analog I/O. The "Classic Analog", whixh is "essentially the same 24-channel, 48kHz AD/DA converters used in RADAR II", and therefore the same good sound that Radar's reputation was pretty much built upon, and then there are TWO Nyquist Analog I/Os.

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