How is sample rate defined in digital audio?

Sample rate in digital audio refers to the frequency at which audio samples are captured and represented in the digital domain. It is measured in kilohertz (kHz), indicating how many times per second the audio signal is sampled. A higher sample rate means more samples are taken each second, leading to a more accurate representation of the original sound wave.

The importance of time resolution in audio processing cannot be overstated, as it directly affects the fidelity and quality of sound reproduction. When an audio signal is digitized, it is crucial to capture enough data points to reproduce the nuances and details of the original signal, which is achieved through adequate sample rates.

Thus, defining sample rate as the resolution of time, measured in kHz, accurately emphasizes its role in ensuring that dynamic audio characteristics are preserved during digitization.