The process of digitizing sound signals includes sampling, quantization and encoding. The sound signal is an analog signal. For the computer to process it, it must be converted into a digital sound signal, that is, digitized.
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The sound signal is an analog signal. In order for the computer to process it, it must be converted into a digital sound signal, that is, digitized. The process of digitizing sound signals is generally divided into three steps: sampling, quantization and encoding.
sampling. Sampling is to convert a time-continuous analog signal into a time-discrete, continuous-amplitude signal.
Quantification. Quantization is the conversion of each sample with a continuous value (analog quantity) in amplitude into a discrete value (digital quantity).
coding. In order to facilitate computer storage, processing and transmission, the sampled and quantized sound signals must be compressed and encoded according to certain requirements.
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