Flashcards
Sound
Flashcards do conjunto (6)
- 1How is sound stored?Sound samples are converted and stored as binary.
- 2How is sound sampled?Analogue waves are measured and sampled at set intervals based on the frequency.
- 3What is the sample frequency?The number of times the sound is sampled per second. (Measured in Hertz, Hz)
- 4Low sample frequency key pointsLow rate =
Very few samples taken
Poor match between
original/sample
Small file size required - 5High sample frequency key pointsHigh rate =
Many more samples
taken
Good match between
original/sample
Large file size required - 6How does the sampling frequency impact quality and file size?A high sampling frequency means higher quality but larger file size because waves are measured more often, making the quality better because it sounds like the real thing. Although it means a larger file size because there are more samples to store.