Audio is, next to the image, one of the most important components of a film. Bad audio quality if unforgivable. This article explains what sample rate is.
In signal processing, sampling is the reduction of a continuous signal to a discrete signal. Accustic waves need to be converted from an analogue to a digital format. The sample rate is measured in Hertz (Hz). The higher the sample rate, the better the audio quality.
The most popular sample rates are:
- 44.1 kHz (kilo Hertz, 44’100 Hz) for audio CDs
- 48 kHz (48’000 Hz) for video production
- 96 kHz (and higher) for cinema and audio DVDs
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