For Test Flashcards
What is an analogue to digital converter
Converts analogue signals to discrete digital values by sampling the signal at regular intervals
What is a digital to analogue converter
Converts digital signals into analogue signals allowing for the recreation of various waveforms from digital values
What is resolution
Number of pixels in width and height determining the clarity of the image
What is colour depth
The number of bits used to represent each colour of a pixel
How to calculate image size in bits
Widthheightcolour depth
What is exif meta data
Camera settings date and time
What is IPTC data
Descriptive information like captions or keywords
What is XMP
Data model that can be used to store metadata
What may xmp data include
GPS
Copyright info
Ownership details
File format info
What is the sample resolution
The number of bits used to represent the amplitude of each sample
Sampling rate
The number of samples per second
What is Nyquist theorem
Sampling rate must be twice the highest frequency to avoid aliasing
Equation linking sample size and sample resolution
Sample size(in bytes) = sample resolution/8
What is MIDI
Protocol enablinging communication between musical instruments and computers transmitting data like pitch and control information
What are the advantages of MIDI
Compact file size
Stores instructions
Editable
Easily modifiable data
Interoperability
Compatible with various devices and software
