Digital audio
It is important to have a basic understanding of how the audio is converted into digital information so that errors are not made in setting up the equipment. The audio signal is sampled at a constant rate like a series of pulses. For each of these pulses, the level of the sound is checked and this value is given a number. This number is transferred into binary code and this code is recorded as the digital information. The actual recording is therefore a string of codes, each representing the level of the audio at a particular moment in time. In order to achieve a good frequency response, the sampling is carried out at a very high frequency; 48,000 samples per second (48 kHz) is used for most professional systems. The level of the ...
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