Storing sound
- Created by: Tomiwaq
- Created on: 15-05-19 19:14
View mindmap
- Storing sound
- Sound is sampled and stored digitally
- Sound is recorded by a microphone as an analogue signal
- Analogue sounds are pieces of continually changing data
- Analogue sounds need to be converted to digital
- This can be done using analogue to digital converters
- Process of converting analogue to digital is called sampling
- Factors to sound files
- Sampling intervals are the gaps between each of the points where the analogue is recorded
- Sample rate is how many samples you take in a second
- Sample size is the number of bits available for each sample
- Bit rate is the number of bits used per second of audio
- Bit rate = sampling frequency x sample size
- Increasing the sampling rate means the analogue is sampled more often
- Increasing the sample size means the digital file picks up quieter sounds
- Increasing sample size and sample rate will increase the bit rate
- Sound is sampled and stored digitally
Comments
No comments have yet been made