Data Representation End of Unit Assessment

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• A digitally recorded fragment of sound, taken from an existing track or sound environment typically using a microphone.
• Number of bits available for each sample
• “The number of bits per second that can be transmitted along a digital network.” the number of bits processed per second. The number of bits used per second of audio
• The number of audio samples captured every second “Number of samples stored per second. Sample rate multiplied by bit depth. The higher the number the better the quality. The higher the number the larger the file size. CD quality is 44,100 samples per second.” This is normally measured in hertz, eg an audio file usually uses samples of 44.1 kHz (44,100 audio samples per second).
• Sound sent into separated into different channels for listening effect e.g stereo sound, surround sound.
• (Sample rate(frequency) × bit depth x channels) x file length (seconds)