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. In the case of unifo
Subsampled image showing a Moiré pattern
Properly sampled image
44,100 Hz
Videos
In digital audio, 44,100 Hz is a common sampling frequency. Analog audio is often recorded by sampling it 44,100 times per second, and then these samples are used to reconstruct the audio signal when
Nyquist–Shannon sampling theorem
…to the Oxford English Dictionary, this may be the origin of the term Nyquist rate. In Black's usage, it is not a sampling rate, but a signaling rate. 44,100 Hz, a customary rate used to sample audible frequencies is based on the limits of human hearing and the sampling theorem Balian–Low theorem, a similar…
Early digital audio was recorded on U-matic video cassette tapes.