12893240
Description
Mind Map by Leon Snailham, updated more than 1 year ago
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Created by Leon Snailham
almost 7 years ago
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Encoding audio and video
- Sounds created on a computer exist as
digital information encoded as audio
files
- 1. Microphone measures change in air pressure
- 2. Microphone translates air pressure into electrical voltage
- 3. Analogue to Digital Converter digitises the electrical voltage to bytes of information
- 4. Computer displays the digitised sound for manipulation
- 4. Computer displays the digitised sound for manipulation
- 3. Analogue to Digital Converter digitises the electrical voltage to bytes of information
- 2. Microphone translates air pressure into electrical voltage
- Sound input through a microphone is
converted to digital for storage and
manipulation
- Digital sound is broken down into thousands of samples
per second. Each sound sample is stored as binary data
- Digital audio quality
- sample rate - the number of audio samples captured every second
- bit rate - the number of bits used
per second of audio
- bit depth - the number of bits available
for each clip
- sample rate - the number of audio samples captured every second
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