Data Storage & Compression (OCR GCSE Computer Science): Flashcards

Measuring amplitude of sound wave at regular intervals

Number of samples taken per second, measured in Hz

Improves playback quality by capturing more detail

Number of bits available to store each sample

Increases accuracy & quality, increases file size

Number of bits used to store each sample

More accurate sound but increases file size

Hertz (Hz)

Higher sample rate and larger bit depth

Higher sample rate, bit depth, and longer duration

$\text{Size} = \text{Bit Rate} \times \text{Sample Frequency} \times \text{Duration}$

How long the sound is recorded for, in seconds