näytetaajuudella

Näytetaajuudella refers to the sampling rate or refresh rate in digital displays and audio. In the context of displays, it is the number of times per second the image on the screen is updated. This is often measured in Hertz (Hz). A higher refresh rate means smoother motion, which is particularly noticeable in fast-paced video games or when scrolling through content. For example, a 60Hz display updates the image 60 times per second, while a 120Hz display updates it 120 times per second. This difference can significantly impact the perceived fluidity of movement.

In audio, näytetaajuudella or sampling rate refers to the number of samples of audio carried per second to represent the sound. It is measured in Hertz (Hz) or kilohertz (kHz). A higher sampling rate means more audio data is captured, which can result in a more accurate and detailed reproduction of sound. Common sampling rates include 44.1 kHz for CDs and 48 kHz for digital video. The Nyquist-Shannon sampling theorem states that the sampling rate must be at least twice the highest frequency present in the signal to accurately reconstruct the original waveform. Therefore, higher sampling rates allow for the capture of higher frequencies.